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Orbits


Tyneside, UK
2020 Aug 11
Tuesday, Day 224

Maintained by:

















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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 alphabetical order of the actual programme supported.

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
134.1 eastUSA 283433392018-036A2020 Aug 935784 x 35792 km, 1436.2 min, 0°.0
92.1 eastUSA 279429492017-066A2020 Jun 2335773 x 35802 km, 1436.1 min, 3°.5
4.1 eastUSA 214 (AEHF 1)368682010-039A2020 Aug 1035763 x 35808 km, 1436.0 min, 2°.9
67.6 westUSA 235 (AEHF 2)382542012-019A2020 Aug 1035758 x 35817 km, 1436.1 min, 2°.1
111.1 eastUSA 246 (AEHF 3)392562013-050A2020 Aug 1035776 x 35798 km, 1436.1 min, 0°.6
150.0 westUSA 288 (AEHF 4)436512018-079A2020 Aug 1035763 x 35812 km, 1436.1 min, 3°.8
54.6 eastUSA 292 (AEHF 5)444812019-051A2020 Aug 935775 x 35801 km, 1436.2 min, 5°.9
100.5 westUSA 298 (AEHF 6)454652020-022B2020 Aug 1034942 x 36608 km, 1435.5 min, 7°.5
67.7 eastUSA 171 (Adv Orion/Mentor 3)279372003-041A2020 Jul 235586 x 35988 km, 1436.1 min, 11°.4
95.5 eastUSA 223 (Adv Orion/Mentor 5)372322010-063A2020 Jun 2435620 x 35954 km, 1436.1 min, 4°.1
52.5 eastUSA 237 (Adv Orion?)385282012-034A2020 Jun 1935581 x 35993 km, 1436.1 min, 2°.3
20.8 westOPS 4258 (Aquacade 3)105081977-114A2020 Mar 2335689 x 35881 km, 1436.0 min, 15°.6
128.6 eastUSA 257 (CLIO)402082014-055A2020 Jun 2835721 x 35847 km, 1436.0 min, 0°.1
20.9 westOPS 7329 (Canyon 3)45101970-069A2020 Aug 1031998 x 39584 km, 1436.3 min, 11°.2
81.5 eastUSA 37 (Chalet 6)199761989-035A2020 Jun 3031704 x 39870 km, 1436.1 min, 7°.9
105.9 westOPS 9431 (DSCS II A-1)55871971-095A2020 Aug 1035773 x 35793 km, 1435.9 min, 7°.0
103.6 eastUSA 113 (DSCS III F-9)236281995-038A2020 Aug 935781 x 35792 km, 1436.1 min, 11°.5
112.3 westUSA 135 (DSCS III F-10)250191997-065A2020 Aug 1035772 x 35802 km, 1436.1 min, 10°.3
179.9 westUSA 148 (DSCS III F-11)260522000-001A2020 Aug 1035776 x 35796 km, 1436.1 min, 8°.5
134.8 eastUSA 153 (DSCS III F-12)265752000-065A2020 Aug 1035781 x 35790 km, 1436.0 min, 8°.0
130.2 westUSA 167 (DSCS III F-13)276912003-008A2020 Aug 1035773 x 35801 km, 1436.1 min, 6°.7
42.6 westUSA 170 (DSCS III F-14)278752003-040A2020 Aug 1035760 x 35816 km, 1436.2 min, 6°.0
96.6 westUSA 107 (DSP F-17)234351994-084A2020 Aug 1035776 x 35799 km, 1436.1 min, 14°.6
7.8 eastUSA 130 (DSP F-19)247371997-008A2020 Aug 1035784 x 35791 km, 1436.1 min, 13°.6
164.7 westUSA 149 (DSP F-20)263562000-024A2020 Aug 1035785 x 35797 km, 1436.3 min, 11°.6
49.0 westUSA 159 (DSP F-21)268802001-033A2020 Aug 1035785 x 35789 km, 1436.1 min, 10°.8
87.4 eastUSA 176 (DSP F-22)281582004-004A2020 Aug 1035780 x 35792 km, 1436.1 min, 9°.2
31.9 westOPS 6393 (FltSatCom F-3)116691980-004A2020 Aug 1035673 x 35881 km, 1435.6 min, 10°.5
71.9 eastUSA 46 (FltSatCom F-8)202531989-077A2020 Aug 1035769 x 35803 km, 1436.1 min, 13°.0
50.5 eastUSA 270 (GSSAP 3)417442016-052A2020 Aug 735732 x 35846 km, 1436.2 min, 0°.7
134.3 eastUSA 271 (GSSAP 4)417452016-052B2020 Aug 735802 x 35811 km, 1437.1 min, 0°.3
44.0 eastUSA 202 (Intruder? or Mentor?)334902009-001A2020 Jun 1935734 x 35840 km, 1436.1 min, 5°.9
105.5 eastUSA 268 (Mentor 7)415842016-036A2020 Jul 235551 x 36023 km, 1436.1 min, 6°.6
43.6 eastUSA 105 (Mercury 1)232231994-054A2020 Mar 2635676 x 35898 km, 1436.1 min, 11°.9
47.6 eastUSA 118 (Mercury 2)238551996-026A2020 Mar 1334162 x 37413 km, 1436.1 min, 9°.1
120.0 westUSA 115 (Milstar 2 DFS)237121995-060A2020 Aug 1035778 x 35796 km, 1436.1 min, 13°.2
137.7 eastUSA 157 (Milstar 4)267152001-009A2020 Aug 1035777 x 35798 km, 1436.1 min, 9°.4
19.0 eastUSA 164 (Milstar 5)271682002-001A2020 Aug 1035774 x 35797 km, 1436.0 min, 8°.8
152.3 eastUSA 169 (Milstar 6)277112003-012A2020 Aug 1035777 x 35795 km, 1436.1 min, 9°.1
100.0 westMUOS 1 (Mobile User Objective System 1)380932012-009A2020 Aug 1035568 x 36005 km, 1436.1 min, 2°.5
177.0 westMUOS 2 (Mobile User Objective System 2)392062013-036A2020 Aug 1035544 x 36029 km, 1436.1 min, 2°.6
15.5 westMUOS 3 (Mobile User Objective System 3)403742015-002A2020 Aug 1035539 x 36034 km, 1436.1 min, 2°.8
75.0 eastMUOS 4 (Mobile User Objective System 4)408872015-044A2020 Aug 1035571 x 36002 km, 1436.1 min, 2°.9
105.0 westMUOS 5 (Mobile User Objective System 5)416222016-041A2020 Aug 1034920 x 36654 km, 1436.1 min, 7°.1
127.0 eastUSA 110 (Orion 1/Mentor 1)235671995-022A2020 Jun 2735644 x 35930 km, 1436.1 min, 14°.9
26.8 westUSA 139 (Orion 2)253361998-029A2020 Mar 2635616 x 35958 km, 1436.1 min, 8°.5
47.5 eastUSA 207 (PAN)358152009-047A2020 Jun 1935773 x 35802 km, 1436.1 min, 0°.1
85.2 eastOPS 5346 (Rhyolite 1)44181970-046A2020 Jun 2435755 x 35823 km, 1436.2 min, 3°.3
76.4 eastOPS 6063 (Rhyolite 2)63801973-013A2020 Aug 1035665 x 35909 km, 1436.1 min, 5°.7
66.2 eastUSA 230 (SBIRS GEO 1)374812011-019A2020 Aug 1035776 x 35796 km, 1436.1 min, 2°.0
20.6 eastUSA 241 (SBIRS GEO 2)391202013-011A2020 Aug 1035776 x 35797 km, 1436.1 min, 2°.1
159.4 westUSA 273 (SBIRS GEO 3)419372017-004A2020 Aug 1035776 x 35797 km, 1436.1 min, 3°.7
139.0 eastUSA 282 (SBIRS GEO 4)431622018-009A2020 Aug 1035776 x 35797 km, 1436.1 min, 4°.9
110.1 eastUSA 155 (SDS-3 F-1)266352000-080A2020 Jun 2435754 x 35820 km, 1436.1 min, 9°.1
100.0 eastUSA 162 (SDS-3 F-2)269482001-046A2020 Jun 2435778 x 35796 km, 1436.1 min, 10°.9
141.1 westUSA 227 (SDS-3 F-5)373772011-011A2020 Jun 2235756 x 35818 km, 1436.1 min, 4°.5
23.9 westUSA 236 (SDS-3 F-6)384662012-033A2020 Mar 2535771 x 35803 km, 1436.1 min, 2°.3
170.0 eastUSA 252 (SDS [-3 F-7?] )397512014-027A2020 Jun 1735771 x 35803 km, 1436.1 min, 2°.7
9.9 westUSA 269 (SDS [-3 F-8?])417242016-047A2020 Mar 2635761 x 35813 km, 1436.1 min, 3°.2
82.0 eastUSA 250 (SIGINT?)396522014-020A2020 Jul 135773 x 35802 km, 1436.1 min, 1°.5
28.7 eastUSA 95 (UFO F-2)227871993-056A2020 Aug 1035769 x 35805 km, 1436.1 min, 11°.3
19.6 westUSA 104 (UFO F-3)231321994-035A2020 Aug 1035772 x 35791 km, 1435.8 min, 11°.5
172.3 eastUSA 108 (UFO F-4)234671995-003A2020 Aug 1035761 x 35810 km, 1436.0 min, 9°.8
171.6 eastUSA 138 (UFO F-8)252581998-016A2020 Aug 935772 x 35803 km, 1436.1 min, 8°.7
22.7 westUSA 146 (UFO F-10)259671999-063A2020 Aug 1035763 x 35812 km, 1436.1 min, 7°.9
74.8 eastUSA 174 (UFO F-11)281172003-057A2020 Aug 1035773 x 35800 km, 1436.1 min, 6°.1
6.0 eastUSA 195 (Wideband Global SATCOM 1)322582007-046A2020 Aug 1035784 x 35789 km, 1436.1 min, 0°.0
60.2 eastUSA 204 (Wideband Global SATCOM 2)347132009-017A2020 Aug 1035783 x 35791 km, 1436.1 min, 0°.0
12.0 westUSA 211 (Wideband Global SATCOM 3)361082009-068A2020 Aug 1035785 x 35788 km, 1436.1 min, 0°.0
88.4 eastUSA 233 (Wideband Global SATCOM 4)380702012-003A2020 Aug 1035786 x 35789 km, 1436.1 min, 0°.0
52.5 westUSA 243 (Wideband Global SATCOM 5)391682013-024A2020 Aug 1035783 x 35790 km, 1436.1 min, 0°.0
135.2 westUSA 244 (Wideband Global SATCOM 6)392222013-041A2020 Aug 1035786 x 35790 km, 1436.2 min, 0°.0
175.0 eastUSA 263 (Wideband Global SATCOM 7)407462015-036A2020 Aug 1035785 x 35788 km, 1436.1 min, 0°.0
149.8 eastUSA 272 (Wideband Global SATCOM 8)418792016-075A2020 Aug 1035785 x 35788 km, 1436.1 min, 0°.0
56.8 eastUSA 275 (Wideband Global SATCOM 9)420752017-016A2020 Aug 1035785 x 35788 km, 1436.1 min, 0°.0
24.0 eastUSA 291 (Wideband Global SATCOM 10)440712019-014A2020 Aug 1035785 x 35788 km, 1436.1 min, 0°.1

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

Classified - updated: 2020 Aug 10
SpaceTrack - updated: 2020 Aug 11
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