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<h2 id="satellites">Satellites</h2> <h3>Satellites by launch date</h3> <table><tbody><tr><th>Satellite</th><th>Launch (UTC)</th><th>Carrier rocket</th><th>Launch site</th><th>Block</th><th>No.</th><th>SVN</th><th>PRN</th><th>Slot</th><th>LOS<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a></th><th>Status</th></tr><tr><td></td><th colspan="10">Remarks</th></tr><tr><td><a href="/facts/OPS_5111/0b9yTzMq">OPS 5111</a></td><td>22 February 197823:44</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a>-SGS-1</td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3E</a></td><td>I</td><td>1<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a></td><td>01</td><td>04</td><td></td><td>2,703</td><td>Retired17 July 1985<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a></td></tr><tr><td><a href="/facts/OPS_5112/7rIuUenu">OPS 5112</a></td><td>13 May 197810:34</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a>-SGS-1</td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3E</a></td><td>I</td><td>2<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a></td><td>02</td><td>07</td><td></td><td>1,161</td><td>Retired16 July 1981<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a></td></tr><tr><td><a href="/facts/OPS_5113/Fz3xM0q0">OPS 5113</a></td><td>7 October 197800:28</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3E</a></td><td>I</td><td>3<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a></td><td>03</td><td>06</td><td></td><td>4,973</td><td>Retired18 May 1992<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/OPS_5114/kkoSuJWR">OPS 5114</a></td><td>11 December 197803:59</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3E</a></td><td>I</td><td>4<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a></td><td>04</td><td>08</td><td></td><td>4,046</td><td>Retired14 October 1989<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a></td></tr><tr><td colspan="10">Used for testing between February 1990 and May 1990.<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a></td></tr><tr><td><a href="/facts/OPS_5117/RbYNlxyp">OPS 5117</a></td><td>9 February 198023:08</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3E</a></td><td>I</td><td>5<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a></td><td>05</td><td>05</td><td></td><td>1,389</td><td>Retired28 November 1983<a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a></td></tr><tr><td><a href="/facts/OPS_5118/Wx43QmvL">OPS 5118</a></td><td>26 April 198022:00</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3E</a></td><td>I</td><td>6<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a></td><td>06</td><td>09</td><td></td><td>3,967</td><td>Retired6 March 1991<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/Navstar_7/23tovQHM">N/A</a>(<a href="/facts/Navstar_7/23tovQHM">Navstar 7</a>)</td><td>19 December 198101:10</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3E</a></td><td>I</td><td>7</td><td>07</td><td>10</td><td></td><td>0</td><td>N/A<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a></td></tr><tr><td colspan="10">Failed to reach orbit.</td></tr><tr><td><a href="/facts/OPS_9794/knW6fyJa">OPS 9794</a></td><td>14 July 198310:21</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3W</a></td><td>I</td><td>8<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a></td><td>08</td><td>11</td><td></td><td>3,583</td><td>Retired4 May 1993<a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-1_(satellite)/3ph2w4wM">USA-1</a></td><td>13 June 198411:37</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3W</a></td><td>I</td><td>9<a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a></td><td>09</td><td>13</td><td></td><td>3,660</td><td>Retired20 June 1994<a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a></td></tr><tr><td colspan="10">Used for testing between February 1994 and June 1994.<a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-5/11PvHhmP">USA-5</a></td><td>8 September 198421:41</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3W</a></td><td>I</td><td>10<a class="footnote-ref" id="fnref:23" href="#fn:23"><sup>23</sup></a></td><td>10</td><td>12</td><td></td><td>4,089</td><td>Retired15 March 1996<a class="footnote-ref" id="fnref:24" href="#fn:24"><sup>24</sup></a></td></tr><tr><td colspan="10">Used for testing between November 1995 and March 1996.<a class="footnote-ref" id="fnref:25" href="#fn:25"><sup>25</sup></a></td></tr><tr><td><a href="/facts/USA-10/AtFchVtv">USA-10</a></td><td>9 October 198502:53</td><td><a href="/facts/Atlas_E%2fF/KnI32kNm">Atlas E/F</a></td><td><a href="/facts/Vandenberg_Air_Force_Base/CHNed3F4">VAFB</a>, <a href="/facts/Vandenberg_Space_Launch_Complex_3/ocbesEHR">SLC-3W</a></td><td>I</td><td>11<a class="footnote-ref" id="fnref:26" href="#fn:26"><sup>26</sup></a></td><td>11</td><td>03</td><td></td><td>3,109</td><td>Retired13 April 1994<a class="footnote-ref" id="fnref:27" href="#fn:27"><sup>27</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/Rockwell_International/dPSf6G1b">N/A</a>(Prototype)</td><td></td><td></td><td></td><td>II</td><td>0</td><td>12</td><td></td><td></td><td>0</td><td>N/A</td></tr><tr><td colspan="10">Qualification vehicle built by <a href="/facts/Rockwell_International/dPSf6G1b">Rockwell International</a> to secure Block II contract; never launched.</td></tr><tr><td><a href="/facts/USA-35/agQ1k3TP">USA-35</a></td><td>14 February 198918:30</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:28" href="#fn:28"><sup>28</sup></a></td><td>II</td><td>1<a class="footnote-ref" id="fnref:29" href="#fn:29"><sup>29</sup></a></td><td>14</td><td>14</td><td></td><td>4,059</td><td>Retired26 March 2000<a class="footnote-ref" id="fnref:30" href="#fn:30"><sup>30</sup></a><a class="footnote-ref" id="fnref:31" href="#fn:31"><sup>31</sup></a></td></tr><tr><td><a href="/facts/USA-38/mjawChtS">USA-38</a></td><td>10 June 198922:30</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:32" href="#fn:32"><sup>32</sup></a></td><td>II</td><td>2<a class="footnote-ref" id="fnref:33" href="#fn:33"><sup>33</sup></a></td><td>13</td><td>02</td><td>B3</td><td>5,371</td><td>Retired22 February 2004<a class="footnote-ref" id="fnref:34" href="#fn:34"><sup>34</sup></a></td></tr><tr><td><a href="/facts/USA-42/FRNKtLgY">USA-42</a></td><td>18 August 198905:58</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:35" href="#fn:35"><sup>35</sup></a></td><td>II</td><td>3<a class="footnote-ref" id="fnref:36" href="#fn:36"><sup>36</sup></a></td><td>16</td><td>16</td><td></td><td>4,075</td><td>Retired13 October 2000<a class="footnote-ref" id="fnref:37" href="#fn:37"><sup>37</sup></a></td></tr><tr><td><a href="/facts/USA-47/jfH4cNmM">USA-47</a></td><td>21 October 198909:31</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:38" href="#fn:38"><sup>38</sup></a></td><td>II</td><td>4<a class="footnote-ref" id="fnref:39" href="#fn:39"><sup>39</sup></a></td><td>19</td><td>19</td><td>A5</td><td>4,165</td><td>Retired16 March 2001<a class="footnote-ref" id="fnref:40" href="#fn:40"><sup>40</sup></a></td></tr><tr><td><a href="/facts/USA-49/xBS7UacS">USA-49</a></td><td>11 December 198918:10</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a><a class="footnote-ref" id="fnref:41" href="#fn:41"><sup>41</sup></a></td><td>II</td><td>5<a class="footnote-ref" id="fnref:42" href="#fn:42"><sup>42</sup></a></td><td>17</td><td>17</td><td>D3</td><td>5,554</td><td>Retired23 February 2005<a class="footnote-ref" id="fnref:43" href="#fn:43"><sup>43</sup></a></td></tr><tr><td><a href="/facts/USA-50/97prIsdy">USA-50</a></td><td>24 January 199022:55</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:44" href="#fn:44"><sup>44</sup></a></td><td>II</td><td>6<a class="footnote-ref" id="fnref:45" href="#fn:45"><sup>45</sup></a></td><td>18</td><td>18</td><td></td><td>3,860</td><td>Retired18 August 2000<a class="footnote-ref" id="fnref:46" href="#fn:46"><sup>46</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-54/a2Reu0MG">USA-54</a></td><td>26 March 199002:45</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:47" href="#fn:47"><sup>47</sup></a></td><td>II</td><td>7<a class="footnote-ref" id="fnref:48" href="#fn:48"><sup>48</sup></a></td><td>20</td><td>20</td><td></td><td>2,249</td><td>Retired21 May 1996<a class="footnote-ref" id="fnref:49" href="#fn:49"><sup>49</sup></a></td></tr><tr><td colspan="10">Decommissioned after twice changing frequency without being commanded to.</td></tr><tr><td><a href="/facts/USA-63/DljR2R7y">USA-63</a></td><td>2 August 199005:39</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:50" href="#fn:50"><sup>50</sup></a></td><td>II</td><td>8<a class="footnote-ref" id="fnref:51" href="#fn:51"><sup>51</sup></a></td><td>21</td><td>21</td><td>E2</td><td>4,438</td><td>Retired25 September 2002<a class="footnote-ref" id="fnref:52" href="#fn:52"><sup>52</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-64/N6UB6Uqb">USA-64</a></td><td>1 October 199021:56</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 6925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a><a class="footnote-ref" id="fnref:53" href="#fn:53"><sup>53</sup></a></td><td>II</td><td>9<a class="footnote-ref" id="fnref:54" href="#fn:54"><sup>54</sup></a></td><td>15</td><td>15</td><td>D5</td><td>6,009</td><td>Retired17 November 2006<a class="footnote-ref" id="fnref:55" href="#fn:55"><sup>55</sup></a></td></tr><tr><td colspan="10">Used for testing from November 2006 until March 2007<a class="footnote-ref" id="fnref:56" href="#fn:56"><sup>56</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-66/yu73t8ya">USA-66</a></td><td>26 November 199021:39</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>1<a class="footnote-ref" id="fnref:57" href="#fn:57"><sup>57</sup></a></td><td>23</td><td>2332</td><td>E5</td><td>7,720</td><td>Retired25 January 2016<a class="footnote-ref" id="fnref:58" href="#fn:58"><sup>58</sup></a></td></tr><tr><td colspan="10">Decommissioned from active service using PRN23 on 13 February 2004. Set usable with PRN32 on 26 February 2008.<a class="footnote-ref" id="fnref:59" href="#fn:59"><sup>59</sup></a></td></tr><tr><td><a href="/facts/USA-71/334ez4df">USA-71</a></td><td>4 July 199102:32</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>2<a class="footnote-ref" id="fnref:60" href="#fn:60"><sup>60</sup></a></td><td>24</td><td>24</td><td>D1</td><td>7,394</td><td>Retired30 September 2011<a class="footnote-ref" id="fnref:61" href="#fn:61"><sup>61</sup></a></td></tr><tr><td><a href="/facts/USA-79/ojyljlqM">USA-79</a></td><td>23 February 199222:29</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a></td><td>IIA</td><td>3<a class="footnote-ref" id="fnref:62" href="#fn:62"><sup>62</sup></a></td><td>25</td><td>25</td><td>A2</td><td>6,509</td><td>Retired18 December 2009</td></tr><tr><td rowspan="2"><a href="/facts/USA-80/aTMMGKBp">USA-80</a></td><td>10 April 199203:20</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a></td><td>IIA</td><td>4<a class="footnote-ref" id="fnref:63" href="#fn:63"><sup>63</sup></a></td><td>28</td><td>28</td><td>C2</td><td>1,954</td><td>Retired15 August 1997<a class="footnote-ref" id="fnref:64" href="#fn:64"><sup>64</sup></a></td></tr><tr><td colspan="10">Retired early, replaced by <a href="/facts/USA-117/5AHq7fQU">USA-117</a>.</td></tr><tr><td><a href="/facts/USA-83/LPlA5Hhc">USA-83</a></td><td>7 July 199209:20</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a></td><td>IIA</td><td>5<a class="footnote-ref" id="fnref:65" href="#fn:65"><sup>65</sup></a></td><td>26</td><td>26</td><td>F5</td><td>8,219</td><td>Retired6 January 2015<a class="footnote-ref" id="fnref:66" href="#fn:66"><sup>66</sup></a></td></tr><tr><td><a href="/facts/USA-84/t3LeyemP">USA-84</a></td><td>9 September 199208:57</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>6<a class="footnote-ref" id="fnref:67" href="#fn:67"><sup>67</sup></a></td><td>27</td><td>27</td><td>A6</td><td>6,910</td><td>Retired10 August 2011<a class="footnote-ref" id="fnref:68" href="#fn:68"><sup>68</sup></a><a class="footnote-ref" id="fnref:69" href="#fn:69"><sup>69</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-85/LrePrAIW">USA-85</a></td><td>22 November 199223:54</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>7<a class="footnote-ref" id="fnref:70" href="#fn:70"><sup>70</sup></a></td><td>32</td><td>310130NA</td><td>F4</td><td>5,595</td><td>Retired17 March 2008<a class="footnote-ref" id="fnref:71" href="#fn:71"><sup>71</sup></a></td></tr><tr><td colspan="10">PRN changed from 32 to 01 in January 1993 due to receiver problems. Decommissioned 17 March 2008 and removed from slot F4. Briefly resumed <a href="/facts/L_band/6l9P26IP">L-band</a> transmission in 2014 but signal unusable.<a class="footnote-ref" id="fnref:72" href="#fn:72"><sup>72</sup></a><a class="footnote-ref" id="fnref:73" href="#fn:73"><sup>73</sup></a></td></tr><tr><td><a href="/facts/USA-87/2RqMW7eP">USA-87</a></td><td>18 December 199222:16</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a></td><td>IIA</td><td>8<a class="footnote-ref" id="fnref:74" href="#fn:74"><sup>74</sup></a></td><td>29</td><td>29</td><td>F5</td><td>5,423</td><td>Retired23 October 2007<a class="footnote-ref" id="fnref:75" href="#fn:75"><sup>75</sup></a></td></tr><tr><td><a href="/facts/USA-88/G7fVwN3G">USA-88</a></td><td>3 February 199302:55</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>9<a class="footnote-ref" id="fnref:76" href="#fn:76"><sup>76</sup></a></td><td>22</td><td>22</td><td>B1</td><td>3,591</td><td>Retired3 December 2002<a class="footnote-ref" id="fnref:77" href="#fn:77"><sup>77</sup></a></td></tr><tr><td><a href="/facts/USA-90/aw1qHmo5">USA-90</a></td><td>30 March 199303:09</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>10<a class="footnote-ref" id="fnref:78" href="#fn:78"><sup>78</sup></a></td><td>31</td><td>31</td><td>C3</td><td>4,592</td><td>Retired24 October 2005</td></tr><tr><td rowspan="2"><a href="/facts/USA-91/XCXNDCV3">USA-91</a></td><td>13 May 199300:07</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>11<a class="footnote-ref" id="fnref:79" href="#fn:79"><sup>79</sup></a></td><td>37</td><td>070124</td><td>C4</td><td>8,346</td><td>Retired18 March 2016<a class="footnote-ref" id="fnref:80" href="#fn:80"><sup>80</sup></a></td></tr><tr><td colspan="10">Switched to PRN01 in October 2008 but was unusable.<a class="footnote-ref" id="fnref:81" href="#fn:81"><sup>81</sup></a> Switched to PRN24 in April 2012 but was unusable.<a class="footnote-ref" id="fnref:82" href="#fn:82"><sup>82</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-92/u0nQXI2I">USA-92</a></td><td>26 June 199313:27</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>12<a class="footnote-ref" id="fnref:83" href="#fn:83"><sup>83</sup></a></td><td>39</td><td>09</td><td>A5</td><td>7,633</td><td>Retired19 May 2014<a class="footnote-ref" id="fnref:84" href="#fn:84"><sup>84</sup></a></td></tr><tr><td colspan="10">First satellite to complete initial operational 24-satellite constellation.</td></tr><tr><td rowspan="2"><a href="/facts/USA-94/QIWaoKkA">USA-94</a></td><td>30 August 199312:38</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a></td><td>IIA</td><td>13<a class="footnote-ref" id="fnref:85" href="#fn:85"><sup>85</sup></a></td><td>35</td><td>0530</td><td>B5</td><td>6,313</td><td>Retired1 May 2013<a class="footnote-ref" id="fnref:86" href="#fn:86"><sup>86</sup></a></td></tr><tr><td colspan="10">Decommissioned from active service using PRN05 in March 2009. Resumed activity using PRN30 in August 2011.<a class="footnote-ref" id="fnref:87" href="#fn:87"><sup>87</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-96/cjhtuWzn">USA-96</a></td><td>26 October 199317:04</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a></td><td>IIA</td><td>14<a class="footnote-ref" id="fnref:88" href="#fn:88"><sup>88</sup></a></td><td>34</td><td>0418</td><td>D6</td><td>8,612</td><td>Retired9 October 2019<a class="footnote-ref" id="fnref:89" href="#fn:89"><sup>89</sup></a><a class="footnote-ref" id="fnref:90" href="#fn:90"><sup>90</sup></a></td></tr><tr><td colspan="10">Decommissioned from active service using PRN04 in November 2015.<a class="footnote-ref" id="fnref:91" href="#fn:91"><sup>91</sup></a> Reactivated in March 2018 using PRN18.<a class="footnote-ref" id="fnref:92" href="#fn:92"><sup>92</sup></a> Decommissioned from active service using PRN18 in October 2019.<a class="footnote-ref" id="fnref:93" href="#fn:93"><sup>93</sup></a></td></tr><tr><td><a href="/facts/USA-100/WnxB2El1">USA-100</a></td><td>10 March 199403:40</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>15<a class="footnote-ref" id="fnref:94" href="#fn:94"><sup>94</sup></a></td><td>36</td><td>0604<a class="footnote-ref" id="fnref:95" href="#fn:95"><sup>95</sup></a></td><td>C6</td><td>7,289</td><td>Retired21 February 2014<a class="footnote-ref" id="fnref:96" href="#fn:96"><sup>96</sup></a><a class="footnote-ref" id="fnref:97" href="#fn:97"><sup>97</sup></a></td></tr><tr><td><a href="/facts/USA-117/5AHq7fQU">USA-117</a></td><td>28 March 199600:21</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17B</a></td><td>IIA</td><td>16<a class="footnote-ref" id="fnref:98" href="#fn:98"><sup>98</sup></a></td><td>33</td><td>03</td><td>C5</td><td>6,702</td><td>Retired2 August 2014<a class="footnote-ref" id="fnref:99" href="#fn:99"><sup>99</sup></a></td></tr><tr><td><a href="/facts/USA-126/eqYXJeVE">USA-126</a></td><td>16 July 199600:50</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>17<a class="footnote-ref" id="fnref:100" href="#fn:100"><sup>100</sup></a></td><td>40</td><td>10</td><td>E6</td><td>7,179</td><td>Retired11 March 2016<a class="footnote-ref" id="fnref:101" href="#fn:101"><sup>101</sup></a></td></tr><tr><td><a href="/facts/USA-128/GFFqneKr">USA-128</a></td><td>12 September 199608:49</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>18<a class="footnote-ref" id="fnref:102" href="#fn:102"><sup>102</sup></a></td><td>30</td><td>30</td><td>B2</td><td>5,425</td><td>Retired20 July 2011<a class="footnote-ref" id="fnref:103" href="#fn:103"><sup>103</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/GPS_IIR-1/lfRJm7yW">GPS IIR-1</a></td><td>17 January 199716:28</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIR</td><td>1</td><td>42</td><td>12</td><td></td><td>0</td><td>N/A<a class="footnote-ref" id="fnref:104" href="#fn:104"><sup>104</sup></a></td></tr><tr><td colspan="10">Failed to reach orbit.</td></tr><tr><td rowspan="2"><a href="/facts/USA-132/JYwHeaIg">USA-132</a></td><td>23 July 199703:43</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:105" href="#fn:105"><sup>105</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIR</td><td>2</td><td>43</td><td>13</td><td>F6</td><td>10,186</td><td><i>Operational</i><a class="footnote-ref" id="fnref:106" href="#fn:106"><sup>106</sup></a></td></tr><tr><td colspan="10">Longest-serving satellite in GPS history.</td></tr><tr><td><a href="/facts/USA-135/Gp6t8JcQ">USA-135</a></td><td>6 November 199700:30</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">LC-17A</a></td><td>IIA</td><td>19<a class="footnote-ref" id="fnref:107" href="#fn:107"><sup>107</sup></a></td><td>38</td><td>08</td><td>A3</td><td>8,008</td><td>Retired9 October 2019<a class="footnote-ref" id="fnref:108" href="#fn:108"><sup>108</sup></a></td></tr><tr><td><a href="/facts/USA-145/FMwKQwrv">USA-145</a></td><td>7 October 199912:51</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:109" href="#fn:109"><sup>109</sup></a></td><td><a href="/facts/Cape_Canaveral_Air_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIR</td><td>3</td><td>46</td><td>11</td><td>D5</td><td>7,706</td><td>On orbit spare10 November 2020<a class="footnote-ref" id="fnref:110" href="#fn:110"><sup>110</sup></a><a class="footnote-ref" id="fnref:111" href="#fn:111"><sup>111</sup></a></td></tr><tr><td><a href="/facts/USA-150/GaELqcj1">USA-150</a></td><td>11 May 200001:48</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:112" href="#fn:112"><sup>112</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIR</td><td>4</td><td>51</td><td>20</td><td>E4</td><td>9,163</td><td><i>Operational</i><a class="footnote-ref" id="fnref:113" href="#fn:113"><sup>113</sup></a></td></tr><tr><td><a href="/facts/USA-151/0rPhTjQe">USA-151</a></td><td>16 July 200009:17</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:114" href="#fn:114"><sup>114</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIR</td><td>5</td><td>44</td><td>2822</td><td>B3</td><td>9,097</td><td><i>Operational</i> <a class="footnote-ref" id="fnref:115" href="#fn:115"><sup>115</sup></a><a class="footnote-ref" id="fnref:116" href="#fn:116"><sup>116</sup></a><a class="footnote-ref" id="fnref:117" href="#fn:117"><sup>117</sup></a><a class="footnote-ref" id="fnref:118" href="#fn:118"><sup>118</sup></a><a class="footnote-ref" id="fnref:119" href="#fn:119"><sup>119</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-154/QSruhCG7">USA-154</a></td><td>10 November 200017:14</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:120" href="#fn:120"><sup>120</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIR</td><td>6</td><td>41</td><td>1422</td><td>F5</td><td>7,918</td><td>Retired25 January 2023<a class="footnote-ref" id="fnref:121" href="#fn:121"><sup>121</sup></a></td></tr><tr><td colspan="10">Retired 9 July 2020. Subsequently reactivated on 20 January 2022 and decommissioned again on 25 January 2023.</td></tr><tr><td><a href="/facts/USA-156/C0UIR9Kn">USA-156</a></td><td>30 January 200107:55</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:122" href="#fn:122"><sup>122</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIR</td><td>7</td><td>54</td><td>18</td><td>E4</td><td>6,244</td><td>On orbit spare5 March 2018<a class="footnote-ref" id="fnref:123" href="#fn:123"><sup>123</sup></a><a class="footnote-ref" id="fnref:124" href="#fn:124"><sup>124</sup></a></td></tr><tr><td><a href="/facts/USA-166/HaadE61D">USA-166</a></td><td>29 January 200318:06</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:125" href="#fn:125"><sup>125</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17B</a></td><td>IIR</td><td>8</td><td>56</td><td>16</td><td>B1</td><td>8,170</td><td><i>Operational</i><a class="footnote-ref" id="fnref:126" href="#fn:126"><sup>126</sup></a></td></tr><tr><td><a href="/facts/USA-168/7r58f6ne">USA-168</a></td><td>31 March 200322:09</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:127" href="#fn:127"><sup>127</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIR</td><td>9</td><td>45</td><td>21</td><td>D3</td><td>7,974</td><td>Retired27 January 2025<a class="footnote-ref" id="fnref:128" href="#fn:128"><sup>128</sup></a></td></tr><tr><td><a href="/facts/USA-175/4IJNjugu">USA-175</a></td><td>21 December 200308:05</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:129" href="#fn:129"><sup>129</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIR</td><td>10</td><td>47</td><td>22</td><td>E6</td><td>6,604</td><td>Retired18 January 2022<a class="footnote-ref" id="fnref:130" href="#fn:130"><sup>130</sup></a></td></tr><tr><td><a href="/facts/USA-177/CHkzsIj1">USA-177</a></td><td>20 March 200417:53</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:131" href="#fn:131"><sup>131</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17B</a></td><td>IIR</td><td>11</td><td>59</td><td>19</td><td>C5</td><td>7,754</td><td><i>Operational</i><a class="footnote-ref" id="fnref:132" href="#fn:132"><sup>132</sup></a></td></tr><tr><td><a href="/facts/USA-178/1Woc91cG">USA-178</a></td><td>23 June 200422:54</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:133" href="#fn:133"><sup>133</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Launch_Complex_17/7Cl4P58d">SLC-17B</a></td><td>IIR</td><td>12</td><td>60</td><td>23</td><td>F4</td><td>5,732</td><td>Retired2 March 2020<a class="footnote-ref" id="fnref:134" href="#fn:134"><sup>134</sup></a><a class="footnote-ref" id="fnref:135" href="#fn:135"><sup>135</sup></a></td></tr><tr><td><a href="/facts/USA-180/QCJTjLJU">USA-180</a></td><td>6 November 200405:39</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:136" href="#fn:136"><sup>136</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17B</a></td><td>IIR</td><td>13</td><td>61</td><td>02</td><td>D1</td><td>7,523</td><td><i>Operational</i><a class="footnote-ref" id="fnref:137" href="#fn:137"><sup>137</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-183/o60I13em">USA-183</a></td><td>26 September 200503:37</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:138" href="#fn:138"><sup>138</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>1</td><td>53</td><td>17</td><td>C4</td><td>7,199</td><td><i>Operational</i><a class="footnote-ref" id="fnref:139" href="#fn:139"><sup>139</sup></a></td></tr><tr><td colspan="10">Also known as IIR-14; first to broadcast <a href="/facts/L2C/hh5vT4YF">L2C</a> signal.</td></tr><tr><td rowspan="2"><a href="/facts/USA-190/W5K6WAlG">USA-190</a></td><td>25 September 200618:50</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:140" href="#fn:140"><sup>140</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>2</td><td>52</td><td>31</td><td>A2</td><td>6,835</td><td><i>Operational</i><a class="footnote-ref" id="fnref:141" href="#fn:141"><sup>141</sup></a></td></tr><tr><td colspan="10">Also known as IIR-15.</td></tr><tr><td rowspan="2"><a href="/facts/USA-192/7L9Bvmov">USA-192</a></td><td>17 November 200619:12</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:142" href="#fn:142"><sup>142</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>3</td><td>58</td><td>12</td><td>B4</td><td>6,782</td><td><i>Operational</i><a class="footnote-ref" id="fnref:143" href="#fn:143"><sup>143</sup></a></td></tr><tr><td colspan="10">Also known as IIR-16; first satellite to complete the full operational 31-satellite constellation.</td></tr><tr><td rowspan="2"><a href="/facts/USA-196/FLG57SWd">USA-196</a></td><td>17 October 200712:23</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:144" href="#fn:144"><sup>144</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>4</td><td>55</td><td>15</td><td>F2</td><td>6,448</td><td><i>Operational</i><a class="footnote-ref" id="fnref:145" href="#fn:145"><sup>145</sup></a></td></tr><tr><td colspan="10">Also known as IIR-17.</td></tr><tr><td rowspan="2"><a href="/facts/USA-199/u77nbM8A">USA-199</a></td><td>20 December 200720:04</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:146" href="#fn:146"><sup>146</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>5</td><td>57</td><td>29</td><td>C1</td><td>6,384</td><td><i>Operational</i><a class="footnote-ref" id="fnref:147" href="#fn:147"><sup>147</sup></a></td></tr><tr><td colspan="10">Also known as IIR-18.</td></tr><tr><td rowspan="2"><a href="/facts/USA-201/08Ak4qJp">USA-201</a></td><td>15 March 200806:10</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:148" href="#fn:148"><sup>148</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>6</td><td>48</td><td>07</td><td>A4</td><td>6,298</td><td><i>Operational</i><a class="footnote-ref" id="fnref:149" href="#fn:149"><sup>149</sup></a></td></tr><tr><td colspan="10">Also known as IIR-19.</td></tr><tr><td rowspan="2"><a href="/facts/USA-203/06hxpbue">USA-203</a></td><td>24 March 200908:34</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5<a class="footnote-ref" id="fnref:150" href="#fn:150"><sup>150</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>7</td><td>49</td><td>01273006NA</td><td>B6</td><td>814</td><td><i>In Reserve</i></td></tr><tr><td colspan="10">Also known as IIR-20; broadcasts demonstration <a href="/facts/GPS_signals/hh5vT4YF">L5</a> signal. Never entered service due to poor quality signal; decommissioned on 6 May 2011 but subsequently reactivated for testing. Broadcast PRN-01 before decommissioning, PRN-27 after reactivation. Shifted to PRN-30 as of 8 May 2013 and to PRN-06 as of 3 April 2014. Currently not assigned a PRN.<a class="footnote-ref" id="fnref:151" href="#fn:151"><sup>151</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-206/A0VQa3HF">USA-206</a></td><td>17 August 200910:35</td><td><a href="/facts/Delta_II/GoBa3Qch">Delta II</a> 7925-9.5</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_17/7Cl4P58d">SLC-17A</a></td><td>IIRM</td><td>8</td><td>50</td><td>05</td><td>E3</td><td>5,778</td><td><i>Operational</i><a class="footnote-ref" id="fnref:152" href="#fn:152"><sup>152</sup></a></td></tr><tr><td colspan="10">Originally scheduled for launch in 1999 as IIR-3 but damaged during processing.<a class="footnote-ref" id="fnref:153" href="#fn:153"><sup>153</sup></a> Also known as IIR-21; L5 services disconnected from J2 port before launch. Final Delta II launch with a <a href="/facts/United_States_Air_Force/7MxWBYlc">United States Air Force</a> payload,<a class="footnote-ref" id="fnref:154" href="#fn:154"><sup>154</sup></a> final launch from SLC-17A, and final Delta II 7925.</td></tr><tr><td rowspan="2"><a href="/facts/USA-213/g0G5CYBh">USA-213</a></td><td>28 May 201003:00</td><td><a href="/facts/Delta_IV/QWun0yHh">Delta IV</a> M+ (4,2)</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_37/bGEN3MjW">SLC-37B</a></td><td>IIF</td><td>1</td><td>62</td><td>25</td><td>B2</td><td>5,494</td><td><i>Operational</i><a class="footnote-ref" id="fnref:155" href="#fn:155"><sup>155</sup></a></td></tr><tr><td colspan="10">First to broadcast operational L5 signal.</td></tr><tr><td><a href="/facts/USA-232/WsPU8o4w">USA-232</a></td><td>16 July 201106:41</td><td><a href="/facts/Delta_IV/QWun0yHh">Delta IV</a> M+(4,2)</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_37/bGEN3MjW">SLC-37B</a></td><td>IIF</td><td>2</td><td>63</td><td>01</td><td>D2</td><td>4,409</td><td>Retired10 August 2023<a class="footnote-ref" id="fnref:156" href="#fn:156"><sup>156</sup></a><a class="footnote-ref" id="fnref:157" href="#fn:157"><sup>157</sup></a></td></tr><tr><td><a href="/facts/USA-239/SMH1vI9E">USA-239</a></td><td>4 October 201212:10</td><td><a href="/facts/Delta_IV/QWun0yHh">Delta IV</a> M+(4,2)</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_37/bGEN3MjW">SLC-37B</a></td><td>IIF</td><td>3</td><td>65</td><td>24</td><td>A1</td><td>4,634</td><td><i>Operational</i><a class="footnote-ref" id="fnref:158" href="#fn:158"><sup>158</sup></a></td></tr><tr><td><a href="/facts/USA-242/nmWqxQaY">USA-242</a></td><td>15 May 201321:38</td><td><a href="/facts/Atlas_V/5SNgegyt">Atlas V</a> 401</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>IIF</td><td>4</td><td>66</td><td>27</td><td>C2</td><td>4,411</td><td><i>Operational</i><a class="footnote-ref" id="fnref:159" href="#fn:159"><sup>159</sup></a></td></tr><tr><td><a href="/facts/USA-248/eqMP9goI">USA-248</a></td><td>21 February 201401:59</td><td><a href="/facts/Delta_IV/QWun0yHh">Delta IV</a> M+ (4,2)</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_37/bGEN3MjW">SLC-37B</a></td><td>IIF</td><td>5</td><td>64</td><td>30</td><td>A3</td><td>4,129</td><td><i>Operational</i><a class="footnote-ref" id="fnref:160" href="#fn:160"><sup>160</sup></a></td></tr><tr><td><a href="/facts/USA-251/PTtVmtbX">USA-251</a></td><td>17 May 201400:03</td><td><a href="/facts/Delta_IV/QWun0yHh">Delta IV</a> M+ (4,2)</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_37/bGEN3MjW">SLC-37B</a></td><td>IIF</td><td>6</td><td>67</td><td>06</td><td>D4</td><td>4,044</td><td><i>Operational</i><a class="footnote-ref" id="fnref:161" href="#fn:161"><sup>161</sup></a></td></tr><tr><td><a href="/facts/USA-256/2DdxFXp3">USA-256</a></td><td>2 August 201403:23</td><td><a href="/facts/Atlas_V/5SNgegyt">Atlas V</a> 401</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>IIF</td><td>7</td><td>68</td><td>09</td><td>F3</td><td>3,967</td><td><i>Operational</i><a class="footnote-ref" id="fnref:162" href="#fn:162"><sup>162</sup></a></td></tr><tr><td><a href="/facts/USA-258/fntBwTfm">USA-258</a></td><td>29 October 201417:21</td><td><a href="/facts/Atlas_V/5SNgegyt">Atlas V</a> 401</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>IIF</td><td>8</td><td>69</td><td>03</td><td>E1</td><td>3,879</td><td><i>Operational</i><a class="footnote-ref" id="fnref:163" href="#fn:163"><sup>163</sup></a></td></tr><tr><td><a href="/facts/USA-260/Q0JTQtpE">USA-260</a></td><td>25 March 201518:36</td><td><a href="/facts/Delta_IV/QWun0yHh">Delta IV</a> M+ (4,2)</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_37/bGEN3MjW">SLC-37B</a></td><td>IIF</td><td>9</td><td>71</td><td>26</td><td>B5</td><td>3,732</td><td><i>Operational</i><a class="footnote-ref" id="fnref:164" href="#fn:164"><sup>164</sup></a></td></tr><tr><td><a href="/facts/USA-262/ngH9JQT4">USA-262</a></td><td>15 July 201515:36</td><td><a href="/facts/Atlas_V/5SNgegyt">Atlas V</a> 401</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>IIF</td><td>10</td><td>72</td><td>08</td><td>C3</td><td>3,620</td><td><i>Operational</i><a class="footnote-ref" id="fnref:165" href="#fn:165"><sup>165</sup></a></td></tr><tr><td><a href="/facts/USA-265/SYCKIYUX">USA-265</a></td><td>31 October 201516:13</td><td><a href="/facts/Atlas_V/5SNgegyt">Atlas V</a> 401</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>IIF</td><td>11</td><td>73</td><td>10</td><td>E2</td><td>3,512</td><td><i>Operational</i><a class="footnote-ref" id="fnref:166" href="#fn:166"><sup>166</sup></a></td></tr><tr><td><a href="/facts/USA-266/h03T8rdx">USA-266</a></td><td>5 February 201613:38</td><td><a href="/facts/Atlas_V/5SNgegyt">Atlas V</a> 401</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>IIF</td><td>12</td><td>70</td><td>32</td><td>F1</td><td>3,415</td><td><i>Operational</i> <a class="footnote-ref" id="fnref:167" href="#fn:167"><sup>167</sup></a></td></tr><tr><td><a href="/facts/USA-289/hhIxI6nH">USA-289</a><i>Vespucci</i><a class="footnote-ref" id="fnref:168" href="#fn:168"><sup>168</sup></a></td><td>23 December 201813:51</td><td><a href="/facts/Falcon_9_Block_5/0QqsLwWb">Falcon 9 Block 5</a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_40/z6Ql3cuD">SLC-40</a></td><td>III</td><td>1</td><td>74</td><td>04</td><td>F4</td><td>2,363</td><td><i>Operational</i> <a class="footnote-ref" id="fnref:169" href="#fn:169"><sup>169</sup></a></td></tr><tr><td><a href="/facts/USA-293/3y5qzvhQ">USA-293</a><i>Magellan</i></td><td>22 August 201913:06</td><td><a href="/facts/Delta_IV/QWun0yHh">Delta IV</a> M+ (4,2)</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_37/bGEN3MjW">SLC-37B</a></td><td>III</td><td>2</td><td>75</td><td>18</td><td>D6</td><td>2,121</td><td><i>Operational</i> <a class="footnote-ref" id="fnref:170" href="#fn:170"><sup>170</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-304/AzWpQLaq">USA-304</a><i>Matthew Henson</i></td><td>30 June 202020:10:46</td><td><a href="/facts/Falcon_9_Block_5/0QqsLwWb">Falcon 9 Block 5</a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_40/z6Ql3cuD">SLC-40</a></td><td>III</td><td>3</td><td>76</td><td>23</td><td>E5</td><td>1,808</td><td><i>Operational</i><a class="footnote-ref" id="fnref:171" href="#fn:171"><sup>171</sup></a></td></tr><tr><td colspan="10">Initially nicknamed <i>Columbus</i>.<a class="footnote-ref" id="fnref:172" href="#fn:172"><sup>172</sup></a><a class="footnote-ref" id="fnref:173" href="#fn:173"><sup>173</sup></a></td></tr><tr><td><a href="/facts/USA-309/BADVjpG6">USA-309</a><i>Sacagawea</i></td><td>5 November 202023:24:23</td><td><a href="/facts/Falcon_9_Block_5/0QqsLwWb">Falcon 9 Block 5</a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCAFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_40/z6Ql3cuD">SLC-40</a></td><td>III</td><td>4</td><td>77</td><td>14</td><td>B6</td><td>1,680</td><td><i>Operational</i><a class="footnote-ref" id="fnref:174" href="#fn:174"><sup>174</sup></a></td></tr><tr><td><a href="/facts/USA-319/Foso5u9k">USA-319</a><i>Neil Armstrong</i></td><td>17 June 2021 16:09<a class="footnote-ref" id="fnref:175" href="#fn:175"><sup>175</sup></a></td><td><a href="/facts/Falcon_9_Block_5/0QqsLwWb">Falcon 9 Block 5</a><a class="footnote-ref" id="fnref:176" href="#fn:176"><sup>176</sup></a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_40/z6Ql3cuD">SLC-40</a><a class="footnote-ref" id="fnref:177" href="#fn:177"><sup>177</sup></a></td><td>III</td><td>5</td><td>78</td><td>11</td><td>D5</td><td>1,456</td><td><i>Operational</i><a class="footnote-ref" id="fnref:178" href="#fn:178"><sup>178</sup></a></td></tr><tr><td><a href="/facts/USA-343/oJrvktrv">USA-343</a><i>Amelia Earhart</i></td><td>18 January 2023 12:24</td><td><a href="/facts/Falcon_9_Block_5/0QqsLwWb">Falcon 9 Block 5</a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_40/z6Ql3cuD">SLC-40</a></td><td>III</td><td>6</td><td>79</td><td>28</td><td>A6</td><td>876</td><td><i>Operational</i><a class="footnote-ref" id="fnref:179" href="#fn:179"><sup>179</sup></a></td></tr><tr><td rowspan="2"><a href="/facts/USA-440/gARj7mkA">USA-440</a><i>Sally Ride</i></td><td>17 December 2024 00:52</td><td><a href="/facts/Falcon_9_Block_5/0QqsLwWb">Falcon 9 Block 5</a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_40/z6Ql3cuD">SLC-40</a></td><td>III</td><td>7</td><td>80</td><td>01</td><td>D2</td><td>178</td><td><i>Operational</i><a class="footnote-ref" id="fnref:180" href="#fn:180"><sup>180</sup></a><a class="footnote-ref" id="fnref:181" href="#fn:181"><sup>181</sup></a></td></tr><tr><td colspan="10">Originally contracted for launch on <a href="/facts/United_Launch_Alliance/yWev1ndb">United Launch Alliance</a>'s <a href="/facts/Vulcan_(rocket)/ItQaJHkk">Vulcan rocket</a>; re-assigned to a Falcon 9 launch under the name Rapid Response Trailblazer-1 (RRT-1) within 6 months of launch due to Vulcan's unavailability and to demonstrate United States Space Force's ability to undergo responsive satellite mission planning.<a class="footnote-ref" id="fnref:182" href="#fn:182"><sup>182</sup></a></td></tr><tr><td><a href="/facts/USA-545/tz1Av2Wf">USA-545</a><i>Katherine Johnson</i></td><td>30 May 2025 17:37</td><td><a href="/facts/Falcon_9_Block_5/0QqsLwWb">Falcon 9 Block 5</a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_40/z6Ql3cuD">SLC-40</a></td><td>III</td><td>8</td><td>81</td><td>21</td><td>E3F</td><td>13</td><td><i>Launched</i></td></tr></tbody></table> <h3>Satellites by block</h3> <p class="note">Further information: <a href="/facts/GPS_satellite_blocks/d4R6InYK">GPS satellite blocks</a></p> <table><tbody><tr><th>Block</th><th>Launched</th><th>Operational</th><th>Testing/Reserve</th><th>Unhealthy</th><th>Retired</th><th>LaunchFailures</th><th>Manufacturer</th><th>Remarks</th></tr><tr><td>Block I</td><td>11</td><td>0</td><td>0</td><td>0</td><td>10</td><td>1</td><td><a href="/facts/Rockwell_International/dPSf6G1b">Rockwell International</a></td><td></td></tr><tr><td>Block II</td><td>9</td><td>0</td><td>0</td><td>0</td><td>9</td><td>0</td><td><a href="/facts/Rockwell_International/dPSf6G1b">Rockwell International</a></td><td>One unlaunched prototype</td></tr><tr><td>Block IIA</td><td>19</td><td>0</td><td>0</td><td>0</td><td>19</td><td>0</td><td><a href="/facts/Rockwell_International/dPSf6G1b">Rockwell International</a></td><td></td></tr><tr><td>Block IIR</td><td>13</td><td>6</td><td>6</td><td>0</td><td>0</td><td>1</td><td><a href="/facts/Lockheed_Martin/URp9BQpA">Lockheed Martin</a></td><td></td></tr><tr><td>Block IIRM</td><td>8</td><td>7</td><td>1</td><td>0</td><td>0</td><td>0</td><td><a href="/facts/Lockheed_Martin/URp9BQpA">Lockheed Martin</a></td><td></td></tr><tr><td>Block IIF</td><td>12</td><td>11</td><td>0</td><td>0</td><td>1</td><td>0</td><td><a href="/facts/Boeing/tF5sMe9F">Boeing</a></td><td></td></tr><tr><td>Block III</td><td>8</td><td>7</td><td>1</td><td>0</td><td>0</td><td>0</td><td><a href="/facts/Lockheed_Martin/URp9BQpA">Lockheed Martin</a></td><td></td></tr><tr><td>Block IIIF</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td><a href="/facts/Lockheed_Martin/URp9BQpA">Lockheed Martin</a></td><td></td></tr><tr><td>Total</td><td>80</td><td>31</td><td>8</td><td>0</td><td>39</td><td>2</td><td></td><td></td></tr><tr><td colspan="9">As of 30 May 2025</td></tr></tbody></table> <h3>Orbital slots (by SVN)</h3> <p>Refer to <a href="https://www.navcen.uscg.gov/gps-constellation">GPS Constellation Status</a> for the most up-to-date information. </p> As of 20 February 2025<table><tbody><tr><th rowspan="2">Slot</th><th colspan="6">Plane</th></tr><tr><th>A</th><th>B</th><th>C</th><th>D</th><th>E</th><th>F</th></tr><tr><th>1</th><th>65</th><th>56</th><th>57</th><th>61</th><th>69</th><th>70</th></tr><tr><th>2</th><th>52</th><th>62</th><th>66</th><th>80</th><th>73</th><th>55</th></tr><tr><th>3</th><th>64</th><th>44</th><th>72</th><td></td><th>50</th><th>68</th></tr><tr><th>4</th><th>48</th><th>58</th><th>53</th><th>67</th><th>51</th><th>74</th></tr><tr><th>5</th><td></td><th>71</th><th>59</th><th>78</th><th>76</th><td></td></tr><tr><th>6</th><th>79</th><th>77</th><td></td><th>75</th><td></td><th>43</th></tr></tbody></table> <table><tbody><tr><th>Block</th><th>IIR</th><th>IIRM</th><th>IIF</th><th>III</th></tr></tbody></table> <p>Numbers in parentheses refer to non-operational satellites. </p><p>Once launched, GPS satellites do not change their plane assignment but slot assignments are somewhat arbitrary and are subject to change. </p> <h3>PRN status by satellite block</h3> <p>As of 20 February 2025, 31 of 32 PRNs are in use; PRN <i>21</i> is unassigned. Two additional satellites are designated as on-orbit spares. </p> <table><tbody><tr><td>PRN</td><td>01</td><td>02</td><td>03</td><td>04</td><td>05</td><td>06</td><td>07</td><td>08</td><td>09</td><td>10</td><td>11</td><td>12</td><td>13</td><td>14</td><td>15</td><td>16</td><td>17</td><td>18</td><td>19</td><td>20</td><td>21</td><td>22</td><td>23</td><td>24</td><td>25</td><td>26</td><td>27</td><td>28</td><td>29</td><td>30</td><td>31</td><td>32</td><td>--</td></tr><tr><td>IIR</td><td></td><td><a href="/facts/USA-180/QCJTjLJU">O</a></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-145/FMwKQwrv">S</a></td><td></td><td><a href="/facts/USA-132/JYwHeaIg">O</a></td><td></td><td></td><td><a href="/facts/USA-166/HaadE61D">O</a></td><td></td><td><a href="/facts/USA-156/C0UIR9Kn">S</a></td><td><a href="/facts/USA-177/CHkzsIj1">O</a></td><td><a href="/facts/USA-150/GaELqcj1">O</a></td><td><a href="/facts/USA-168/7r58f6ne">R</a></td><td><a href="/facts/USA-151/0rPhTjQe">O</a></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>IIRM</td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-206/A0VQa3HF">O</a></td><td></td><td><a href="/facts/USA-201/08Ak4qJp">O</a></td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-192/7L9Bvmov">O</a></td><td></td><td></td><td><a href="/facts/USA-196/FLG57SWd">O</a></td><td></td><td><a href="/facts/USA-183/o60I13em">O</a></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-199/u77nbM8A">O</a></td><td></td><td><a href="/facts/USA-190/W5K6WAlG">O</a></td><td></td><td><a href="/facts/USA-203/06hxpbue">S</a></td></tr><tr><td>IIF</td><td><a href="/facts/USA-232/WsPU8o4w">R</a></td><td></td><td><a href="/facts/USA-258/fntBwTfm">O</a></td><td></td><td></td><td><a href="/facts/USA-251/PTtVmtbX">O</a></td><td></td><td><a href="/facts/USA-262/ngH9JQT4">O</a></td><td><a href="/facts/USA-256/2DdxFXp3">O</a></td><td><a href="/facts/USA-265/SYCKIYUX">O</a></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-239/SMH1vI9E">O</a></td><td><a href="/facts/USA-213/g0G5CYBh">O</a></td><td><a href="/facts/USA-260/Q0JTQtpE">O</a></td><td><a href="/facts/USA-242/nmWqxQaY">O</a></td><td></td><td></td><td><a href="/facts/USA-248/eqMP9goI">O</a></td><td></td><td><a href="/facts/USA-266/h03T8rdx">O</a></td><td></td></tr><tr><td>III</td><td><a href="/facts/USA-440/gARj7mkA">O</a></td><td></td><td></td><td><a href="/facts/USA-289/hhIxI6nH">O</a></td><td></td><td></td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-319/Foso5u9k">O</a></td><td></td><td></td><td><a href="/facts/USA-309/BADVjpG6">O</a></td><td></td><td></td><td></td><td><a href="/facts/USA-293/3y5qzvhQ">O</a></td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-304/AzWpQLaq">O</a></td><td></td><td></td><td></td><td></td><td><a href="/facts/USA-343/oJrvktrv">O</a></td><td></td><td></td><td></td><td></td><td></td></tr></tbody></table> Legend: <ul><li>O – Operational</li> <li>T – Testing in preparation for operation</li> <li>S – On orbit Spare</li> <li>U – Unhealthy and unusable</li> <li>R – Retired</li></ul> <h3>PRN to SVN history</h3> <p>This section is for the purpose of making it possible to determine the PRN associated with a SVN at a particular epoch. For example, SVN 049 had been assigned PRNs 01, 24, 27, and 30 at different times of its lifespan, whereas PRN 01 had been assigned to SVNs 032, 037, 049, 035, and 063 at different epochs. This information can be found in the <a href="http://www.igs.org">IGS</a> <a href="https://web.archive.org/web/20131013225217/http://igscb.jpl.nasa.gov/igscb/station/general/antex14.txt">ANTEX</a> <a href="ftp://igs.org/pub/station/general/igs14.atx">file</a>[<i>dead link</i>], which uses the convention "GNN" and "GNNN" for PRNs and SVNs, respectively. For example, SVN 049 is described as: </p> BLOCK IIR-M G01 G049 2009-014A TYPE / SERIAL NO 2009 3 24 0 0 0.0000000 VALID FROM 2011 5 6 23 59 59.9999999 VALID UNTIL BLOCK IIR-M G24 G049 2009-014A TYPE / SERIAL NO 2012 2 2 0 0 0.0000000 VALID FROM 2012 3 14 23 59 59.9999999 VALID UNTIL BLOCK IIR-M G24 G049 2009-014A TYPE / SERIAL NO 2012 8 9 0 0 0.0000000 VALID FROM 2012 8 22 23 59 59.9999999 VALID UNTIL BLOCK IIR-M G27 G049 2009-014A TYPE / SERIAL NO 2012 10 18 0 0 0.0000000 VALID FROM 2013 5 9 23 59 59.9999999 VALID UNTIL BLOCK IIR-M G30 G049 2009-014A TYPE / SERIAL NO 2013 5 10 0 0 0.0000000 VALID FROM <p>whereas for PRN 01 the following excerpt is relevant: </p> BLOCK IIA G01 G032 1992-079A TYPE / SERIAL NO 1992 11 22 0 0 0.0000000 VALID FROM 2008 10 16 23 59 59.9999999 VALID UNTIL BLOCK IIA G01 G037 1993-032A TYPE / SERIAL NO 2008 10 23 0 0 0.0000000 VALID FROM 2009 1 6 23 59 59.9999999 VALID UNTIL BLOCK IIR-M G01 G049 2009-014A TYPE / SERIAL NO 2009 3 24 0 0 0.0000000 VALID FROM 2011 5 6 23 59 59.9999999 VALID UNTIL BLOCK IIA G01 G035 1993-054A TYPE / SERIAL NO 2011 6 2 0 0 0.0000000 VALID FROM 2011 7 12 23 59 59.9999999 VALID UNTIL BLOCK IIF G01 G063 2011-036A TYPE / SERIAL NO 2011 7 16 0 0 0.0000000 VALID FROM <p>A table extracted out of the ANTEX file is made <a href="http://ftp.aiub.unibe.ch/BSWUSER52/GEN/SATELLIT.I14">available</a> by the <a href="http://www.bernese.unibe.ch/">Bernese GNSS Software</a>. </p> <h2 id="planned-launches">Planned launches</h2> <h3>Block III</h3> <p class="note">Main article: <a href="/facts/GPS_Block_III/rGsRMFr5">GPS Block III</a></p> <table><tbody><tr><th>Date</th><th>Rocket</th><th>Launch site</th><th>Satellite</th><th>SVN</th><th>Remarks</th></tr><tr><td>End of 2025<a class="footnote-ref" id="fnref:183" href="#fn:183"><sup>183</sup></a></td><td>Vulcan Centaur <a href="/facts/Vulcan_Centaur/ItQaJHkk">VC2S</a></td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a> <a href="/facts/SLC-41/QBUVHdSb">SLC-41</a></td><td>GPS III SV09 <i>Ellison Onizuka</i></td><td>82</td><td>Space vehicle manufacturing contract awarded September 2016.<a class="footnote-ref" id="fnref:184" href="#fn:184"><sup>184</sup></a><p>Declared "Available for Launch" on 23 Aug 2022.<a class="footnote-ref" id="fnref:185" href="#fn:185"><sup>185</sup></a></p></td></tr><tr><td>2026<a class="footnote-ref" id="fnref:186" href="#fn:186"><sup>186</sup></a></td><td>Vulcan Centaur VC2S</td><td><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>GPS III SV10 <i>Hedy Lamarr</i></td><td>83</td><td>Space vehicle manufacturing contract awarded September 2016.<a class="footnote-ref" id="fnref:187" href="#fn:187"><sup>187</sup></a> Component build up stage as of June 2021.<a class="footnote-ref" id="fnref:188" href="#fn:188"><sup>188</sup></a> Component deliveries continuing through May 2022.<a class="footnote-ref" id="fnref:189" href="#fn:189"><sup>189</sup></a><p>Declared "Available for Launch" on 08 Dec 2022.<a class="footnote-ref" id="fnref:190" href="#fn:190"><sup>190</sup></a></p></td></tr></tbody></table> <h3>Block IIIF</h3> <p class="note">Main article: <a href="/facts/GPS_Block_IIIF/3kc1eFxI">GPS Block IIIF</a></p> <table><tbody><tr><th>Projected Available For Launch (AFL) Date</th><th>Rocket</th><th>Launch site</th><th>Satellite</th><th>SVN</th><th>Remarks</th></tr><tr><td rowspan="1">Nov 2026<a class="footnote-ref" id="fnref:191" href="#fn:191"><sup>191</sup></a><a class="footnote-ref" id="fnref:192" href="#fn:192"><sup>192</sup></a></td><td rowspan="1"><a href="/facts/Vulcan_Centaur/ItQaJHkk">Vulcan Centaur</a></td><td rowspan="1"><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>GPS IIIF SV11</td><td></td><td>Construction contract awarded in September 2018. In production. Core mate Feb 2025.</td></tr><tr><td>Apr 2027<a class="footnote-ref" id="fnref:193" href="#fn:193"><sup>193</sup></a></td><td rowspan="1"><a href="/facts/Vulcan_Centaur/ItQaJHkk">Vulcan Centaur</a></td><td rowspan="1"><a href="/facts/Cape_Canaveral_Space_Force_Station/dwJ9MCPH">CCSFS</a>, <a href="/facts/Cape_Canaveral_Space_Launch_Complex_41/QBUVHdSb">SLC-41</a></td><td>GPS IIIF SV12</td><td></td><td>In production.</td></tr><tr><td>Mar 2028<a class="footnote-ref" id="fnref:194" href="#fn:194"><sup>194</sup></a></td><td><a href="/facts/Falcon_Heavy/vh7so7BW">Falcon Heavy</a></td><td><a href="/facts/Kennedy_Space_Center/zmwszuPr">Kennedy</a>, <a href="/facts/Kennedy_Space_Center_Launch_Complex_39A/pnH83f5s">LC-39A</a></td><td>GPS IIIF SV13</td><td></td><td>In production.</td></tr><tr><td>Jul 2028<a class="footnote-ref" id="fnref:195" href="#fn:195"><sup>195</sup></a></td><td></td><td></td><td>GPS IIIF SV14</td><td></td><td>In production.</td></tr><tr><td>Jun 2029<a class="footnote-ref" id="fnref:196" href="#fn:196"><sup>196</sup></a></td><td></td><td></td><td>GPS IIIF SV15</td><td></td><td></td></tr><tr><td>Nov 2029<a class="footnote-ref" id="fnref:197" href="#fn:197"><sup>197</sup></a></td><td></td><td></td><td>GPS IIIF SV16</td><td></td><td></td></tr><tr><td>Feb 2030<a class="footnote-ref" id="fnref:198" href="#fn:198"><sup>198</sup></a></td><td></td><td></td><td>GPS IIIF SV17</td><td></td><td><a href="/facts/GPS_Block_IIIF/3kc1eFxI">Technology Insertion Point</a></td></tr><tr><td>Jul 2030<a class="footnote-ref" id="fnref:199" href="#fn:199"><sup>199</sup></a></td><td></td><td></td><td>GPS IIIF SV18</td><td></td><td></td></tr><tr><td>Oct 2030<a class="footnote-ref" id="fnref:200" href="#fn:200"><sup>200</sup></a></td><td></td><td></td><td>GPS IIIF SV19</td><td></td><td></td></tr><tr><td>Dec 2030<a class="footnote-ref" id="fnref:201" href="#fn:201"><sup>201</sup></a></td><td></td><td></td><td>GPS IIIF SV20</td><td></td><td></td></tr><tr><td>Feb 2031<a class="footnote-ref" id="fnref:202" href="#fn:202"><sup>202</sup></a></td><td></td><td></td><td>GPS IIIF SV21</td><td></td><td></td></tr><tr><td>Oct 2032<a class="footnote-ref" id="fnref:203" href="#fn:203"><sup>203</sup></a></td><td></td><td></td><td>GPS IIIF SV22</td><td></td><td></td></tr><tr><td rowspan="2">FY2030<a class="footnote-ref" id="fnref:204" href="#fn:204"><sup>204</sup></a></td><td></td><td></td><td>GPS IIIF SV23</td><td></td><td><a href="/facts/GPS_Block_IIIF/3kc1eFxI">Technology Insertion Point</a></td></tr><tr><td></td><td></td><td>GPS IIIF SV24</td><td></td><td></td></tr><tr><td rowspan="2">FY2031<a class="footnote-ref" id="fnref:205" href="#fn:205"><sup>205</sup></a></td><td></td><td></td><td>GPS IIIF SV25</td><td></td><td></td></tr><tr><td></td><td></td><td>GPS IIIF SV26</td><td></td><td></td></tr><tr><td rowspan="2">FY2032<a class="footnote-ref" id="fnref:206" href="#fn:206"><sup>206</sup></a></td><td></td><td></td><td>GPS IIIF SV27</td><td></td><td></td></tr><tr><td></td><td></td><td>GPS IIIF SV28</td><td></td><td></td></tr><tr><td rowspan="2">FY2033<a class="footnote-ref" id="fnref:207" href="#fn:207"><sup>207</sup></a></td><td></td><td></td><td>GPS IIIF SV29</td><td></td><td><a href="/facts/GPS_Block_IIIF/3kc1eFxI">Technology Insertion Point</a></td></tr><tr><td></td><td></td><td>GPS IIIF SV30</td><td></td><td></td></tr><tr><td>FY2034<a class="footnote-ref" id="fnref:208" href="#fn:208"><sup>208</sup></a></td><td></td><td></td><td>GPS IIIF SV31</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td>GPS IIIF SV32</td><td></td><td>Launch planned for July 2037<a class="footnote-ref" id="fnref:209" href="#fn:209"><sup>209</sup></a></td></tr></tbody></table> <h2 id="see-also">See also</h2> <ul> <li>Spaceflight portal</li></ul> <ul><li><a href="/facts/List_of_BeiDou_satellites/d90YPxck">List of BeiDou satellites</a></li> <li><a href="/facts/List_of_Galileo_satellites/VqEP3MKe">List of Galileo satellites</a></li> <li><a href="/facts/List_of_GLONASS_satellites/k04t5YTM">List of GLONASS satellites</a></li> <li><a href="/facts/Indian_Regional_Navigation_Satellite_System/k3JM5NBx">List of NAVIC satellites</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="http://www.boeing.com/defense-space/space/bls/missions/index.html">Boeing Delta launch schedule</a></li> <li><a href="https://www.sworld.com.au/steven/space/usmil-rec.txt">United States military launch record</a></li> <li><a href="https://www.navcen.uscg.gov/gps-constellation">NAVCEN GPS Constellation</a></li> <li><a href="http://earth-info.nga.mil/GandG/sathtml/satinfo.html">NIMA GPS Constellation Status</a></li> <li><a href="https://www2.unb.ca/gge/Resources/GPSConstellationStatus.txt">UNB GPS Constellation Status</a></li> <li><a href="https://ftp.agi.com/pub/Catalog/Almanacs/SEM/GPSData.txt">AGI-CSSI GPS Constellation Status</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>US Government. "GPS.gov". gps.gov. U.S. Government. Retrieved 21 March 2015. This article incorporates text from this source, which is in the public domain. <a href="http://www.gps.gov/support/faq/#gap1" target="_blank">http://www.gps.gov/support/faq/#gap1</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"2 SOPS disposes last GPS IIA satellite after 26 years". GPS World. 17 April 2020. Retrieved 7 July 2021. <a href="https://www.gpsworld.com/2-sops-disposes-last-gps-iia-satellite-after-26-years/" target="_blank">https://www.gpsworld.com/2-sops-disposes-last-gps-iia-satellite-after-26-years/</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Length Of Service in days. Includes testing period(s). <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Navstar 1". NASA. Retrieved 21 November 2020. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-020A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-020A</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"Navstar 2". NASA. Retrieved 21 November 2020. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-047A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-047A</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>"Navstar 3". NASA. Retrieved 21 November 2020. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-093A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-093A</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>"Navstar 4". NASA. Retrieved 21 November 2020. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-112A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1978-112A</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>"Navstar 5". NASA. Retrieved 24 April 2013. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1980-011A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1980-011A</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>"Navstar 6". NASA. Retrieved 24 April 2013. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1980-032A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1980-032A</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>"Navstar 8". NASA. Retrieved 25 April 2013. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1983-072A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1983-072A</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> <li id="fn:19"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></p></li> <li id="fn:20"><p>"Navstar 9". NASA. Retrieved 25 April 2013. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1984-059A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1984-059A</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></p></li> <li id="fn:21"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></p></li> <li id="fn:22"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></p></li> <li id="fn:23"><p>"Navstar 10". NASA. Retrieved 25 April 2013. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1984-097A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1984-097A</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></p></li> <li id="fn:24"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></p></li> <li id="fn:25"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:25" class="footnote-back-ref">↩</a></p></li> <li id="fn:26"><p>"Navstar 11". NASA. Retrieved 25 April 2013. This article incorporates text from this source, which is in the public domain. <a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1985-093A" target="_blank">https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1985-093A</a> <a href="#fnref:26" class="footnote-back-ref">↩</a></p></li> <li id="fn:27"><p>"USNO Block 1 Satellite Information". FTP server (FTP). Retrieved 28 June 2015.[dead ftp link] (To view documents see Help:FTP) This article incorporates text from this source, which is in the public domain. <a href="ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt" target="_blank">ftp://tycho.usno.navy.mil/pub/gps/gpsb1.txt</a> <a href="#fnref:27" class="footnote-back-ref">↩</a></p></li> <li id="fn:28"><p>Wade, Mark. "Delta 6925". Encyclopedia Astronautica. Archived from the original on 22 May 2013. 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