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Orbits


Tyneside, UK
2020 Apr 2
Thursday, Day 93

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° eastUSA 283433392018-036A2020 Apr 135784 x 35790 km, 1436.1 min, 0°.0
92° eastUSA 279429492017-066A2020 Mar 1735766 x 35809 km, 1436.1 min, 3°.6
4° eastUSA 214 (AEHF 1)368682010-039A2020 Mar 3135769 x 35806 km, 1436.1 min, 2°.6
68° westUSA 235 (AEHF 2)382542012-019A2020 Apr 135768 x 35809 km, 1436.2 min, 1°.9
111° eastUSA 246 (AEHF 3)392562013-050A2020 Apr 135761 x 35816 km, 1436.2 min, 0°.7
150° westUSA 288 (AEHF 4)436512018-079A2020 Apr 135772 x 35801 km, 1436.1 min, 4°.0
94° westUSA 292 (AEHF 5)444812019-051A2020 Apr 135774 x 35799 km, 1436.1 min, 6°.1
67° eastUSA 171 (Adv Orion/Mentor 3)279372003-041A2020 Feb 2735586 x 35988 km, 1436.1 min, 11°.1
96° eastUSA 223 (Adv Orion/Mentor 5)372322010-063A2020 Mar 1735588 x 35986 km, 1436.1 min, 4°.0
52° eastUSA 237 (Adv Orion?)385282012-034A2020 Mar 2635597 x 35977 km, 1436.1 min, 2°.1
21° westOPS 4258 (Aquacade 3)105081977-114A2020 Mar 2335689 x 35881 km, 1436.0 min, 15°.6
124° eastUSA 257 (CLIO)402082014-055A2020 Mar 3035714 x 35851 km, 1435.9 min, 0°.1
17° westOPS 7329 (Canyon 3)45101970-069A2020 Apr 132037 x 39537 km, 1436.1 min, 11°.4
82° eastUSA 37 (Chalet 6)199761989-035A2020 Mar 2231686 x 39888 km, 1436.1 min, 7°.9
111° westOPS 9431 (DSCS II A-1)55871971-095A2020 Apr 135776 x 35794 km, 1436.0 min, 7°.3
34° westOPS 9432 (DSCS II A-2)55881971-095B2020 Mar 3035775 x 35829 km, 1436.9 min, 7°.2
104° eastUSA 113 (DSCS III F-9)236281995-038A2020 Mar 3135781 x 35795 km, 1436.2 min, 11°.4
112° westUSA 135 (DSCS III F-10)250191997-065A2020 Apr 135753 x 35822 km, 1436.1 min, 10°.1
180° westUSA 148 (DSCS III F-11)260522000-001A2020 Mar 3135774 x 35799 km, 1436.1 min, 8°.3
134° eastUSA 153 (DSCS III F-12)265752000-065A2020 Mar 3135780 x 35794 km, 1436.1 min, 7°.8
130° westUSA 167 (DSCS III F-13)276912003-008A2020 Apr 135769 x 35804 km, 1436.1 min, 6°.5
42° westUSA 170 (DSCS III F-14)278752003-040A2020 Apr 135772 x 35801 km, 1436.1 min, 5°.7
97° westUSA 107 (DSP F-17)234351994-084A2020 Apr 135777 x 35794 km, 1436.1 min, 14°.5
166° westUSA 149 (DSP F-20)263562000-024A2020 Mar 3135776 x 35797 km, 1436.1 min, 11°.5
8° eastUSA 130 (DSP F-20)247371997-008A2020 Apr 135780 x 35789 km, 1436.0 min, 13°.5
49° westUSA 159 (DSP F-21)268802001-033A2020 Apr 135781 x 35788 km, 1436.0 min, 10°.7
87° eastUSA 176 (DSP F-22)281582004-004A2020 Mar 3135784 x 35790 km, 1436.1 min, 9°.1
123° eastUSA 197 (DSP F-23)322872007-054A2020 Mar 2035790 x 35817 km, 1437.0 min, 6°.0
72° eastUSA 46 (FltSatCom F-8)202531989-077A2020 Mar 3135767 x 35805 km, 1436.1 min, 13°.0
81° eastUSA 253 (GSSAP 1)400992014-043A2020 Mar 3035774 x 35796 km, 1436.0 min, 0°.2
44° eastUSA 202 (Intruder? or Mentor?)334902009-001A2020 Mar 2635711 x 35863 km, 1436.1 min, 5°.8
105° eastUSA 268 (Mentor 7)415842016-036A2020 Mar 1235572 x 36003 km, 1436.1 min, 6°.7
44° eastUSA 105 (Mercury 1)232231994-054A2020 Mar 2635676 x 35898 km, 1436.1 min, 11°.9
48° eastUSA 118 (Mercury 2)238551996-026A2020 Mar 1334162 x 37413 km, 1436.1 min, 9°.1
39° westUSA 99 (Milstar 1 DFS)229881994-009A2020 Apr 135779 x 35794 km, 1436.1 min, 14°.0
90° westUSA 115 (Milstar 2 DFS)237121995-060A2020 Mar 3135772 x 35802 km, 1436.1 min, 13°.2
138° eastUSA 157 (Milstar 4)267152001-009A2020 Apr 135776 x 35796 km, 1436.1 min, 9°.3
19° eastUSA 164 (Milstar 5)271682002-001A2020 Mar 3135777 x 35795 km, 1436.1 min, 8°.7
120° westUSA 169 (Milstar 6)277112003-012A2020 Apr 135776 x 35796 km, 1436.1 min, 8°.9
100° westMUOS 1 (Mobile User Objective System 1)380932012-009A2020 Apr 135540 x 36033 km, 1436.1 min, 2°.5
177° westMUOS 2 (Mobile User Objective System 2)392062013-036A2020 Apr 135573 x 36002 km, 1436.1 min, 2°.7
15° westMUOS 3 (Mobile User Objective System 3)403742015-002A2020 Apr 135568 x 36005 km, 1436.1 min, 2°.9
75° eastMUOS 4 (Mobile User Objective System 4)408872015-044A2020 Apr 135538 x 36035 km, 1436.1 min, 3°.0
105° westMUOS 5 (Mobile User Objective System 5)416222016-041A2020 Apr 134952 x 36621 km, 1436.1 min, 7°.4
127° eastUSA 110 (Orion 1/Mentor 1)235671995-022A2020 Mar 2035638 x 35936 km, 1436.1 min, 14°.8
27° westUSA 139 (Orion 2)253361998-029A2020 Mar 2635616 x 35958 km, 1436.1 min, 8°.5
47° eastUSA 207 (PAN)358152009-047A2020 Mar 2635772 x 35802 km, 1436.1 min, 0°.1
81° eastOPS 5346 (Rhyolite 1)44181970-046A2020 Mar 135748 x 35816 km, 1435.9 min, 3°.5
76° eastOPS 6063 (Rhyolite 2)63801973-013A2020 Apr 135699 x 35873 km, 1436.1 min, 6°.0
66° eastUSA 230 (SBIRS GEO 1)374812011-019A2020 Apr 135779 x 35794 km, 1436.1 min, 2°.1
21° eastUSA 241 (SBIRS GEO 2)391202013-011A2020 Apr 135778 x 35795 km, 1436.1 min, 2°.2
159° westUSA 273 (SBIRS GEO 3)419372017-004A2020 Apr 135779 x 35794 km, 1436.1 min, 4°.0
139° eastUSA 282 (SBIRS GEO 4)431622018-009A2020 Mar 3135779 x 35795 km, 1436.1 min, 5°.1
110° eastUSA 155 (SDS-3 F-1)266352000-080A2020 Mar 2035762 x 35812 km, 1436.1 min, 9°.0
100° eastUSA 162 (SDS-3 F-2)269482001-046A2020 Mar 135755 x 35820 km, 1436.1 min, 10°.7
141° westUSA 227 (SDS-3 F-5)373772011-011A2020 Mar 2835768 x 35806 km, 1436.1 min, 4°.5
24° westUSA 236 (SDS-3 F-6)384662012-033A2020 Mar 2535771 x 35803 km, 1436.1 min, 2°.3
170° eastUSA 252 (SDS [-3 F-7?] )397512014-027A2020 Mar 1735767 x 35807 km, 1436.1 min, 2°.7
10° westUSA 269 (SDS [-3 F-8?])417242016-047A2020 Mar 2635761 x 35813 km, 1436.1 min, 3°.2
82° eastUSA 250 (SIGINT?)396522014-020A2020 Mar 135773 x 35802 km, 1436.1 min, 1°.5
29° eastUSA 95 (UFO F-2)227871993-056A2020 Apr 135768 x 35803 km, 1436.0 min, 11°.3
33° westUSA 104 (UFO F-3)231321994-035A2020 Apr 135751 x 35799 km, 1435.5 min, 11°.5
172° eastUSA 108 (UFO F-4)234671995-003A2020 Apr 135766 x 35808 km, 1436.1 min, 9°.9
172° eastUSA 138 (UFO F-8)252581998-016A2020 Apr 135765 x 35810 km, 1436.1 min, 8°.6
23° westUSA 146 (UFO F-10)259671999-063A2020 Apr 135762 x 35814 km, 1436.2 min, 7°.8
75° eastUSA 174 (UFO F-11)281172003-057A2020 Mar 3135759 x 35815 km, 1436.1 min, 6°.0
24° eastUSA 291 (WGS 10)440712019-014A2020 Apr 135785 x 35789 km, 1436.1 min, 0°.1
6° eastUSA 195 (Wideband Global SATCOM 1)322582007-046A2020 Mar 3135785 x 35790 km, 1436.1 min, 0°.0
60° eastUSA 204 (Wideband Global SATCOM 2)347132009-017A2020 Apr 135786 x 35789 km, 1436.1 min, 0°.0
12° westUSA 211 (Wideband Global SATCOM 3)361082009-068A2020 Apr 135786 x 35788 km, 1436.1 min, 0°.0
88° eastUSA 233 (Wideband Global SATCOM 4)380702012-003A2020 Apr 135786 x 35789 km, 1436.1 min, 0°.0
53° westUSA 243 (Wideband Global SATCOM 5)391682013-024A2020 Apr 135785 x 35789 km, 1436.1 min, 0°.0
135° westUSA 244 (Wideband Global SATCOM 6)392222013-041A2020 Apr 135786 x 35788 km, 1436.1 min, 0°.0
175° eastUSA 263 (Wideband Global SATCOM 7)407462015-036A2020 Apr 135786 x 35787 km, 1436.1 min, 0°.0
150° eastUSA 272 (Wideband Global SATCOM 8)418792016-075A2020 Apr 135785 x 35788 km, 1436.1 min, 0°.0
57° eastUSA 275 (Wideband Global SATCOM 9)420752017-016A2020 Apr 135787 x 35787 km, 1436.1 min, 0°.0

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 Apr 1
SpaceTrack - updated: 2020 Apr 2
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