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Orbits


Tyneside, UK
2022 Jan 25
Tuesday, Day 25

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Geosynchronous Satellites - US Government and Military

This a list of satellites mainly in the series of named 'USA xxx' or carrying the predecessor 'OPS' designations. It is in order of geographical location round the equator.

This page is a snapshot and is updated frequently. The more inclined or eccentric the orbit, the larger the error margin of the geosynchronous location. Even the worst case should, however, be within ±3 degrees of reality. Only satellites exhibiting less than 0.25° per day of drift are included.

Appearance in this list does not mean that the satellite is operational or under control at its location. Some older, non-working, satellites have drifted to 'wells' in the Earth's gravitational field and oscillate around that location.


Longi-
tude (°)
Satellite Cat
no
Desig- nation Orbit
Epoch
Orbit
7.0 westUSA 104 (UFO F-3)231321994-035A2022 Jan 2435776 x 35791 km, 1435.9 min, 11°.7
10.0 westUSA 269 (SDS [-3 F-8?])417242016-047A2021 May 735770 x 35805 km, 1436.1 min, 2°.7
12.0 westUSA 275 (Wideband Global SATCOM 9)420752017-016A2022 Jan 2435786 x 35788 km, 1436.1 min, 0°.0
15.5 westMUOS 3 (Mobile User Objective System 3)403742015-002A2022 Jan 2435560 x 36014 km, 1436.1 min, 2°.5
23.0 westUSA 146 (UFO F-10)259671999-063A2022 Jan 2435778 x 35798 km, 1436.2 min, 8°.5
23.9 westUSA 236 (SDS-3 F-6)384662012-033A2021 May 735773 x 35801 km, 1436.1 min, 3°.2
24.2 westOPS 4258 (Aquacade 3)105081977-114A2020 Sep 2235719 x 35864 km, 1436.3 min, 15°.2
25.9 westOPS 0441 (Vortex 4)146751984-009A2021 May 731563 x 40033 km, 1436.7 min, 6°.3
26.7 westUSA 139 (Mentor 2/Advanced Orion 2)253361998-029A2021 May 735636 x 35939 km, 1436.1 min, 8°.2
32.8 westUSA 127 (UFO F-7)239671996-042A2022 Jan 2435765 x 35828 km, 1436.6 min, 9°.7
42.3 westUSA 170 (DSCS III F-14)278752003-040A2022 Jan 2435781 x 35794 km, 1436.2 min, 7°.1
49.1 westUSA 159 (DSP F-21)268802001-033A2022 Jan 2435783 x 35791 km, 1436.1 min, 11°.3
49.6 westOPS 4029 (Vortex 3)129301981-107A2021 May 732111 x 39487 km, 1436.7 min, 6°.6
52.5 westUSA 243 (Wideband Global SATCOM 5)391682013-024A2022 Jan 2435785 x 35791 km, 1436.2 min, 0°.0
67.5 westUSA 288 (AEHF 4)436512018-079A2022 Jan 2435771 x 35803 km, 1436.1 min, 2°.7
90.0 westUSA 99 (Milstar 1 DFS)229881994-009A2022 Jan 2435774 x 35800 km, 1436.1 min, 15°.1
94.2 westUSA 235 (AEHF 2)382542012-019A2022 Jan 2435771 x 35804 km, 1436.1 min, 3°.1
96.5 westUSA 107 (DSP F-17)234351994-084A2022 Jan 2435785 x 35788 km, 1436.1 min, 14°.6
100.0 westMUOS 1 (Mobile User Objective System 1)380932012-009A2022 Jan 2435553 x 36020 km, 1436.1 min, 2°.8
105.0 westMUOS 5 (Mobile User Objective System 5)416222016-041A2022 Jan 2434961 x 36613 km, 1436.1 min, 5°.9
107.7 westOPS 9431 (DSCS II A-1)55871971-095A2022 Jan 2435779 x 35800 km, 1436.3 min, 5°.7
111.7 westSTPSat 6 (Space Test Program Satellite)498172021-118A2022 Jan 2435784 x 35789 km, 1436.1 min, 0°.0
112.1 westUSA 135 (DSCS III F-10)250191997-065A2022 Jan 2435763 x 35811 km, 1436.1 min, 10°.9
120.0 westUSA 115 (Milstar 2 DFS)237121995-060A2022 Jan 2435774 x 35799 km, 1436.1 min, 13°.5
124.3 westUSA 157 (Milstar 4)267152001-009A2022 Jan 2435778 x 35797 km, 1436.1 min, 9°.9
129.9 westUSA 167 (DSCS III F-13)276912003-008A2022 Jan 2435776 x 35795 km, 1436.0 min, 7°.8
135.2 westUSA 244 (Wideband Global SATCOM 6)392222013-041A2022 Jan 2435786 x 35788 km, 1436.1 min, 0°.0
141.1 westUSA 227 (SDS-3 F-5)373772011-011A2020 Nov 2135771 x 35803 km, 1436.1 min, 4°.6
155.1 westUSA 246 (AEHF 3)392562013-050A2022 Jan 2435546 x 36026 km, 1436.1 min, 1°.4
157.6 westOPS 7329 (Canyon 3)45101970-069A2022 Jan 2431809 x 39802 km, 1437.1 min, 10°.7
159.4 westUSA 273 (SBIRS GEO 3)419372017-004A2022 Jan 2435778 x 35795 km, 1436.1 min, 2°.6
165.7 westUSA 149 (DSP F-20)263562000-024A2022 Jan 2435782 x 35795 km, 1436.2 min, 12°.0
177.0 westMUOS 2 (Mobile User Objective System 2)392062013-036A2022 Jan 2435569 x 36005 km, 1436.1 min, 2°.6
179.7 westUSA 148 (DSCS III F-11)260522000-001A2022 Jan 2435775 x 35795 km, 1436.0 min, 9°.3
179.8 eastUSA 211 (Wideband Global SATCOM 3)361082009-068A2022 Jan 2435785 x 35787 km, 1436.1 min, 0°.1
175.6 eastOPS 9432 (DSCS II A-2)55881971-095B2022 Jan 2435766 x 35800 km, 1435.9 min, 5°.7
175.0 eastUSA 263 (Wideband Global SATCOM 7)407462015-036A2022 Jan 2435787 x 35787 km, 1436.1 min, 0°.0
172.2 eastUSA 108 (UFO F-4)234671995-003A2022 Jan 2435782 x 35792 km, 1436.1 min, 9°.8
171.6 eastUSA 138 (UFO F-8)252581998-016A2022 Jan 2435775 x 35799 km, 1436.1 min, 9°.3
170.0 eastUSA 252 (SDS [-3 F-7?] )397512014-027A2020 Jun 1735771 x 35803 km, 1436.1 min, 2°.7
152.1 eastUSA 169 (Milstar 6)277112003-012A2022 Jan 2435776 x 35798 km, 1436.1 min, 9°.9
149.8 eastUSA 272 (Wideband Global SATCOM 8)418792016-075A2022 Jan 2435783 x 35790 km, 1436.1 min, 0°.0
139.0 eastUSA 282 (SBIRS GEO 4)431622018-009A2022 Jan 2435778 x 35795 km, 1436.1 min, 3°.8
137.7 eastUSA 298 (AEHF 6)454652020-022B2022 Jan 2435565 x 36006 km, 1436.0 min, 6°.3
134.4 eastUSA 153 (DSCS III F-12)265752000-065A2022 Jan 2435778 x 35797 km, 1436.2 min, 8°.9
134.1 eastUSA 283 (Continuous Broadcast Augmenting SATCOM)433392018-036A2022 Jan 2435783 x 35791 km, 1436.1 min, 0°.0
128.6 eastUSA 257 (CLIO)402082014-055A2020 Jun 2835721 x 35847 km, 1436.0 min, 0°.1
126.4 eastUSA 110 (Mentor 1/Advanced Orion 1)235671995-022A2021 Jan 1735652 x 35922 km, 1436.1 min, 15°.1
110.1 eastUSA 155 (SDS-3 F-1)266352000-080A2021 Jan 1335726 x 35847 km, 1436.1 min, 9°.3
105.5 eastUSA 268 (Mentor 7/Advanced Orion 7)415842016-036A2021 Sep 735580 x 35995 km, 1436.1 min, 6°.3
103.8 eastUSA 113 (DSCS III F-9)236281995-038A2022 Jan 2335777 x 35799 km, 1436.2 min, 12°.0
100.0 eastUSA 162 (SDS-3 F-2)269482001-046A2020 Jun 2435778 x 35796 km, 1436.1 min, 10°.9
95.5 eastUSA 223 (Mentor 5/Advanced Orion 5)372322010-063A2021 Sep 735643 x 35931 km, 1436.1 min, 5°.1
92.1 eastUSA 279 (SDS-4 F1?)429492017-066A2021 Sep 635771 x 35804 km, 1436.1 min, 2°.8
88.4 eastUSA 233 (Wideband Global SATCOM 4)380702012-003A2022 Jan 2435786 x 35788 km, 1436.1 min, 0°.0
87.4 eastUSA 176 (DSP F-22)281582004-004A2022 Jan 2435782 x 35790 km, 1436.1 min, 9°.9
82.0 eastUSA 250 (SIGINT?)396522014-020A2021 Sep 335763 x 35811 km, 1436.1 min, 1°.6
81.5 eastUSA 37 (Chalet 6)199761989-035A2020 Jul 131704 x 39870 km, 1436.1 min, 7°.9
75.7 eastOPS 6063 (Rhyolite 2)63801973-013A2022 Jan 2435707 x 35864 km, 1436.1 min, 4°.4
75.0 eastMUOS 4 (Mobile User Objective System 4)408872015-044A2022 Jan 2435547 x 36026 km, 1436.1 min, 2°.6
74.7 eastUSA 174 (UFO F-11)281172003-057A2022 Jan 2435772 x 35800 km, 1436.1 min, 6°.8
71.9 eastUSA 46 (FltSatCom F-8)202531989-077A2022 Jan 2435781 x 35793 km, 1436.1 min, 12°.9
67.8 eastUSA 171 (Mentor 3/Advanced Orion 3)279372003-041A2021 Sep 335621 x 35953 km, 1436.1 min, 12°.1
66.2 eastUSA 230 (SBIRS GEO 1)374812011-019A2022 Jan 2435778 x 35795 km, 1436.1 min, 1°.8
64.8 eastOPS 5346 (Rhyolite 1)44181970-046A2021 Jun 135746 x 35832 km, 1436.2 min, 2°.5
60.3 eastUSA 291 (Wideband Global SATCOM 10)440712019-014A2022 Jan 2435786 x 35788 km, 1436.1 min, 0°.0
57.5 eastUSA 204 (Wideband Global SATCOM 2)347132009-017A2022 Jan 2435785 x 35789 km, 1436.1 min, 0°.0
56.6 eastUSA 207 (PAN)358152009-047A2022 Jan 935715 x 35856 km, 1436.0 min, 0°.1
54.5 eastUSA 292 (AEHF 5)444812019-051A2022 Jan 2435776 x 35798 km, 1436.1 min, 4°.7
52.6 eastUSA 237 (Mentor 6/Advanced Orion 6)385282012-034A2021 Nov 2135618 x 35957 km, 1436.1 min, 3°.4
50.7 eastUSA 311 (Mentor 8/Advanced Orion 8)472372019-095A2021 Nov 835600 x 35974 km, 1436.1 min, 7°.3
48.6 eastUSA 118 (Mercury 2)238551996-026A2021 Nov 834239 x 37336 km, 1436.1 min, 8°.8
44.1 eastUSA 202 (Mentor 4/Advanced Orion 4)334902009-001A2021 Nov 735768 x 35806 km, 1436.1 min, 6°.4
42.0 eastUSA 105 (Mercury 1)232231994-054A2021 Nov 835656 x 35919 km, 1436.1 min, 12°.3
28.8 eastUSA 95 (UFO F-2)227871993-056A2022 Jan 2435767 x 35804 km, 1436.0 min, 11°.4
20.7 eastUSA 241 (SBIRS GEO 2)391202013-011A2022 Jan 2435778 x 35795 km, 1436.1 min, 1°.9
19.0 eastUSA 164 (Milstar 5)271682002-001A2022 Jan 2435777 x 35797 km, 1436.1 min, 9°.4
10.4 eastOPS 4966 (Canyon 6)79631975-055A2020 Jan 1930029 x 41530 km, 1435.7 min, 16°.2
8.5 eastUSA 315 (SBIRS GEO 5)486182021-042A2022 Jan 2435757 x 35816 km, 1436.1 min, 7°.6
7.9 eastUSA 197 (DSP F-23)322872007-054A2021 Jun 735780 x 35800 km, 1436.3 min, 7°.0
6.0 eastUSA 195 (Wideband Global SATCOM 1)322582007-046A2022 Jan 2435785 x 35788 km, 1436.1 min, 0°.0
4.0 eastUSA 214 (AEHF 1)368682010-039A2022 Jan 2435781 x 35795 km, 1436.1 min, 4°.2

For the satellites that do not have formal published elements, thanks go to the radio and visual amateur satellite trackers for their observing, and particularly to Mike McCants for archiving the derived orbits.

Updated: 2022 Jan 25, 02:47 UTC

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