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Orbits
Nottinghamshire, UK
2026 Sep 10
Thursday, Day 253

Curated by:
Robert Christy


Orbital Focus Home


Geosynch by Longitude

Geosynch by Name

Geosynch by Satellite Age

Geosynch - Russia by Type

Geosynch - Russia by Longitude

Geosynch - China by Type

Geosynch - China by Longitude

Geosynch - US by Type

Geosynch - US by Longitude

Geosynch - US Gov/Mil by Type

Geosynch - US Gov/Mil by Long


Other orbits:

Sun-synchronous orbits

Tables of Launches
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.

Updated: 2026 Sep 3 UTC

Longi-
tude (°)		 Satellite Cat
no		 Desig- nation Orbit
Epoch		 Orbit
0.1 WUSA 237 (Mentor 6, Advanced Orion 6)385282012-034A2025 Dec 2535612 x 35961 km, 1436.1 min, 7°.0
10.0 WUSA 269 (SDS [-3 F-8?])417242016-047A2025 Apr 335766 x 35808 km, 1436.1 min, 3°.2
10.4 WUSA 104 (UFO F-3)231321994-035A2026 Sep 335772 x 35802 km, 1436.1 min, 12°.4
12.0 WUSA 275 (Wideband Global SATCOM 9)420752017-016A2026 Sep 235786 x 35788 km, 1436.1 min, 0°.0
15.5 WMUOS 3 (Mobile User Objective System 3)403742015-002A2026 Sep 335547 x 36027 km, 1436.1 min, 4°.7
16.4 WUSA 235 (AEHF 2)382542012-019A2026 Sep 335776 x 35797 km, 1436.1 min, 6°.8
22.8 WUSA 146 (UFO F-10)259671999-063A2026 Sep 335772 x 35802 km, 1436.1 min, 9°.9
23.8 WUSA 236 (SDS-3 F-6)384662012-033A2025 Feb 1835765 x 35809 km, 1436.1 min, 6°.7
25.8 WOPS 4258 (Aquacade 3)105081977-114A2025 Feb 1835701 x 35884 km, 1436.4 min, 11°.3
26.5 WUSA 139 (Mentor 2, Advanced Orion 2)253361998-029A2025 Apr 335623 x 35951 km, 1436.1 min, 7°.4
42.5 WUSA 195 (Wideband Global SATCOM 1)322582007-046A2026 Sep 335783 x 35791 km, 1436.1 min, 0°.0
49.1 WUSA 176 (DSP F-22)281582004-004A2026 Sep 335778 x 35797 km, 1436.2 min, 12°.2
52.5 WUSA 243 (Wideband Global SATCOM 5)391682013-024A2026 Sep 335785 x 35790 km, 1436.1 min, 0°.0
65.3 WUSA 127 (UFO F-7)239671996-042A2026 Sep 335784 x 35838 km, 1437.4 min, 11°.2
67.5 WUSA 288 (AEHF 4)436512018-079A2026 Sep 335498 x 36076 km, 1436.1 min, 1°.4
90.0 WUSA 115 (Milstar 2 DFS)237121995-060A2026 Sep 335760 x 35813 km, 1436.1 min, 14°.1
99.9 WMUOS 1 (Mobile User Objective System 1)380932012-009A2026 Sep 335561 x 36012 km, 1436.1 min, 5°.6
101.7 WOPS 9431 (DSCS II A-1)55871971-095A2026 Sep 335764 x 35815 km, 1436.2 min, 1°.4
101.8 WOPS 0441 (Vortex 4)146751984-009A2026 Sep 332041 x 39478 km, 1434.7 min, 6°.1
105.0 WMUOS 5 (Mobile User Objective System 5)416222016-041A2026 Sep 334929 x 36644 km, 1436.1 min, 2°.0
111.9 WSTPSat 6 (Space Test Program Satellite)498172021-118A2026 Sep 135782 x 35791 km, 1436.1 min, 0°.5
112.1 WUSA 135 (DSCS III F-10)250191997-065A2026 Sep 335777 x 35797 km, 1436.1 min, 12°.9
122.1 WUSA 167 (DSCS III F-13)276912003-008A2026 Sep 335774 x 35799 km, 1436.1 min, 11°.1
122.3 WUSA 211 (Wideband Global SATCOM 3)361082009-068A2026 Sep 335784 x 35790 km, 1436.1 min, 0°.3
124.2 WUSA 246 (AEHF 3)392562013-050A2026 Sep 335403 x 36169 km, 1436.1 min, 5°.5
124.2 WOPS 6393 (FltSatCom F-3)116691980-004A2026 Sep 335718 x 35915 km, 1437.6 min, 6°.0
127.1 WUSA 162 (SDS-3 F-2)269482001-046A2024 Apr 3035772 x 35802 km, 1436.1 min, 12°.9
135.2 WUSA 244 (Wideband Global SATCOM 6)392222013-041A2026 Sep 335785 x 35789 km, 1436.1 min, 0°.0
150.1 WUSA 157 (Milstar 4)267152001-009A2026 Sep 335606 x 35967 km, 1436.1 min, 11°.6
159.4 WUSA 282 (SBIRS GEO 4)431622018-009A2026 Sep 335778 x 35795 km, 1436.1 min, 2°.2
175.0 EUSA 263 (Wideband Global SATCOM 7)407462015-036A2026 Sep 335787 x 35787 km, 1436.1 min, 0°.0
172.4 EUSA 108 (UFO F-4)234671995-003A2026 Sep 335774 x 35797 km, 1436.0 min, 9°.7
172.0 EMUOS 2 (Mobile User Objective System 2)392062013-036A2026 Sep 335550 x 36024 km, 1436.1 min, 5°.1
170.0 EUSA 252 (SDS [-3 F-7?] )397512014-027A2020 Jun 1735771 x 35803 km, 1436.1 min, 2°.7
160.7 EOPS 8790 (AQUACADE 4)107871978-038A2026 Sep 335658 x 35808 km, 1433.4 min, 3°.5
152.1 EUSA 169 (Milstar 6)277112003-012A2026 Sep 235379 x 36195 km, 1436.1 min, 12°.5
151.0 EUSA 138 (UFO F-8)252581998-016A2026 Sep 335768 x 35814 km, 1436.3 min, 11°.2
149.8 EUSA 272 (Wideband Global SATCOM 8)418792016-075A2026 Sep 335787 x 35787 km, 1436.1 min, 0°.0
142.8 EOPS 3165 (DSP F- 5)84821975-118A2026 Sep 335595 x 35873 km, 1433.4 min, 2°.1
139.0 EUSA 336 (SBIRS GEO 6)533552022-092A2026 Sep 335779 x 35795 km, 1436.1 min, 3°.1
137.7 EUSA 298 (AEHF 6)454652020-022B2026 Sep 335608 x 35964 km, 1436.1 min, 2°.4
134.5 EUSA 153 (DSCS III F-12)265752000-065A2026 Sep 335779 x 35794 km, 1436.1 min, 11°.8
134.1 EUSA 283 (Continuous Broadcast Augmenting SATCOM)433392018-036A2026 Sep 235783 x 35792 km, 1436.1 min, 0°.0
128.6 EUSA 257 (CLIO)402082014-055A2020 Jun 2835721 x 35847 km, 1436.0 min, 0°.1
126.4 EUSA 110 (Mentor 1, Advanced Orion 1)235671995-022A2021 Jan 1735652 x 35922 km, 1436.1 min, 15°.1
126.2 EUSA 270 (GSSAP 3)417442016-052A2026 Aug 3135751 x 35819 km, 1436.0 min, 4°.4
125.6 EUSA 46 (FltSatCom F-8)202531989-077A2026 Sep 335774 x 35796 km, 1436.0 min, 12°.4
121.6 EUSA 325 (GSSAP 6)512812022-006B2026 Jan 635692 x 35884 km, 1436.2 min, 0°.2
119.3 EUSA 332 (Wide Field of View Testbed)529402022-073A2026 Sep 335774 x 35798 km, 1436.1 min, 3°.9
110.1 EUSA 155 (SDS-3 F-1)266352000-080A2021 Jan 1335726 x 35847 km, 1436.1 min, 9°.3
107.0 EOPS 9432 (DSCS II A-2)55881971-095B2026 Sep 335806 x 35826 km, 1437.6 min, 1°.4
105.5 EUSA 268 (Mentor 8, Advanced Orion 7)415842016-036A2021 Sep 735580 x 35995 km, 1436.1 min, 6°.3
97.2 EUSA 271 (GSSAP 4)417452016-052B2026 Aug 3135732 x 35849 km, 1436.3 min, 4°.4
95.5 EUSA 223 (Mentor 5, Advanced Orion 5)372322010-063A2021 Sep 735643 x 35931 km, 1436.1 min, 5°.1
93.8 EUSA 315 (SBIRS GEO 5)486182021-042A2026 Sep 335779 x 35795 km, 1436.1 min, 5°.0
93.4 EUSA 292 (AEHF 5)444812019-051A2026 Sep 335666 x 35914 km, 1436.3 min, 1°.4
92.1 EUSA 279 (SDS-4 F1?)429492017-066A2021 Sep 635771 x 35804 km, 1436.1 min, 2°.8
88.4 EUSA 233 (Wideband Global SATCOM 4)380702012-003A2026 Sep 335785 x 35790 km, 1436.1 min, 0°.0
83.7 EUSA 37 (Chalet 6)199761989-035A2022 Aug 2331806 x 39768 km, 1436.1 min, 7°.8
82.1 EUSA 250 (SIGINT?)396522014-020A2022 Sep 2135755 x 35819 km, 1436.1 min, 2°.2
76.3 EOPS 6063 (Rhyolite 2)63801973-013A2026 Sep 335694 x 35881 km, 1436.1 min, 0°.2
75.5 EUSA 174 (UFO F-11)281172003-057A2026 Sep 335772 x 35802 km, 1436.1 min, 9°.0
75.0 EMUOS 4 (Mobile User Objective System 4)408872015-044A2026 Sep 335562 x 36011 km, 1436.1 min, 4°.5
72.9 EUSA 324 (GSSAP 5)512802022-006A2026 Jun 635770 x 35794 km, 1435.8 min, 0°.8
67.7 EUSA 171 (Mentor 3, Advanced Orion 3)279372003-041A2022 Sep 2035617 x 35958 km, 1436.1 min, 12°.7
64.8 EOPS 5346 (Rhyolite 1)44181970-046A2021 Jun 135746 x 35832 km, 1436.2 min, 2°.5
60.3 EUSA 291 (Wideband Global SATCOM 10)440712019-014A2026 Sep 235785 x 35789 km, 1436.1 min, 0°.0
57.5 EUSA 204 (Wideband Global SATCOM 2)347132009-017A2026 Sep 335784 x 35789 km, 1436.1 min, 0°.0
55.7 EUSA 311 (Mentor 8, Advanced Orion 8)472372019-095A2025 Feb 1835610 x 35964 km, 1436.1 min, 4°.4
51.8 EUSA 230 (SBIRS GEO 1)374812011-019A2026 Sep 335779 x 35793 km, 1436.1 min, 4°.7
51.3 EUSA 118 (Mercury 2)238551996-026A2025 Apr 334376 x 37198 km, 1436.1 min, 8°.1
44.0 EUSA 202 (Mentor 4, Advanced Orion 4)334902009-001A2025 Dec 2435765 x 35809 km, 1436.1 min, 8°.6
40.8 EUSA 105 (Mercury 1)232231994-054A2025 Apr 335665 x 35909 km, 1436.1 min, 13°.1
36.6 EOPS 0757 (TacSat)36911969-013A2026 Sep 335651 x 35832 km, 1433.8 min, 3°.0
32.0 EUSA 346 (Silent Barker 1)578362023-140A2025 Jun 1435784 x 35789 km, 1436.1 min, 12°.3
29.9 EUSA 214 (AEHF 1)368682010-039A2026 Sep 335770 x 35803 km, 1436.1 min, 8°.4
28.6 EUSA 95 (UFO F-2)227871993-056A2026 Sep 335780 x 35792 km, 1436.1 min, 11°.9
24.3 EUSA 170 (DSCS III F-14)278752003-040A2026 Sep 335781 x 35796 km, 1436.2 min, 10°.7
21.1 EUSA 207 (PAN)358152009-047A2025 Apr 335734 x 35844 km, 1436.2 min, 0°.1
19.0 EUSA 164 (Milstar 5)271682002-001A2026 Sep 335373 x 36198 km, 1436.0 min, 11°.3
10.4 EOPS 4966 (Canyon 6, AFP-827 6)79631975-055A2020 Jan 1930029 x 41530 km, 1435.7 min, 16°.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.
Copyright © Robert Christy, all rights reserved
Reproduction of this web page or any of its content without permission from the website owner is prohibited