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Orbits


Tyneside, UK
2021 Feb 26
Friday, Day 57

Maintained by:


















Other orbits:


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
12.0 westUSA 211 (Wideband Global SATCOM 3)361082009-068A2021 Feb 2535785 x 35790 km, 1436.1 min, 0°.0
13.0 westUSA 104 (UFO F-3)231321994-035A2021 Feb 2435767 x 35804 km, 1436.0 min, 11°.6
15.5 westMUOS 3 (Mobile User Objective System 3)403742015-002A2021 Feb 2435570 x 36004 km, 1436.1 min, 2°.6
21.6 westOPS 6393 (FltSatCom F-3)116691980-004A2021 Feb 2435691 x 35883 km, 1436.1 min, 10°.1
22.8 westUSA 146 (UFO F-10)259671999-063A2021 Feb 2435772 x 35800 km, 1436.1 min, 8°.1
29.2 westUSA 127 (UFO F-7)239671996-042A2021 Feb 2435742 x 35816 km, 1435.7 min, 9°.4
42.5 westUSA 170 (DSCS III F-14)278752003-040A2021 Feb 2535777 x 35794 km, 1436.0 min, 6°.4
45.0 westOPS 7329 (Canyon 3)45101970-069A2021 Feb 2431933 x 39674 km, 1437.0 min, 11°.0
49.2 westUSA 159 (DSP F-21)268802001-033A2021 Feb 2435779 x 35791 km, 1436.0 min, 11°.0
51.0 westUSA 311 (Mentor 8/Advanced Orion 8)472372019-095A2020 Jan 535610 x 35949 km, 1435.7 min, 7°.9
52.5 westUSA 243 (Wideband Global SATCOM 5)391682013-024A2021 Feb 2535785 x 35789 km, 1436.1 min, 0°.0
67.5 westUSA 235 (AEHF 2)382542012-019A2021 Feb 2435772 x 35801 km, 1436.1 min, 2°.4
90.0 westUSA 99 (Milstar 1 DFS)229881994-009A2021 Feb 2435777 x 35797 km, 1436.1 min, 14°.6
94.2 westUSA 298 (AEHF 6)454652020-022B2021 Feb 2535768 x 35804 km, 1436.1 min, 7°.0
96.4 westUSA 107 (DSP F-17)234351994-084A2021 Feb 2435782 x 35790 km, 1436.1 min, 14°.6
99.0 westOPS 9431 (DSCS II A-1)55871971-095A2021 Feb 2535777 x 35794 km, 1436.0 min, 6°.5
100.0 westMUOS 1 (Mobile User Objective System 1)380932012-009A2021 Feb 2435541 x 36032 km, 1436.1 min, 2°.6
105.1 westMUOS 5 (Mobile User Objective System 5)416222016-041A2021 Feb 2434960 x 36613 km, 1436.1 min, 6°.7
111.8 westUSA 135 (DSCS III F-10)250191997-065A2021 Feb 2435755 x 35819 km, 1436.1 min, 10°.5
120.0 westUSA 115 (Milstar 2 DFS)237121995-060A2021 Feb 2435775 x 35797 km, 1436.1 min, 13°.3
130.2 westUSA 167 (DSCS III F-13)276912003-008A2021 Feb 2535772 x 35801 km, 1436.1 min, 7°.1
135.2 westUSA 244 (Wideband Global SATCOM 6)392222013-041A2021 Feb 2435784 x 35789 km, 1436.1 min, 0°.0
150.1 westUSA 288 (AEHF 4)436512018-079A2021 Feb 2535778 x 35796 km, 1436.1 min, 3°.4
159.4 westUSA 273 (SBIRS GEO 3)419372017-004A2021 Feb 2535779 x 35794 km, 1436.1 min, 3°.3
165.9 westUSA 149 (DSP F-20)263562000-024A2021 Feb 2435783 x 35790 km, 1436.1 min, 11°.7
177.0 westMUOS 2 (Mobile User Objective System 2)392062013-036A2021 Feb 2435570 x 36002 km, 1436.1 min, 2°.5
179.8 westUSA 148 (DSCS III F-11)260522000-001A2021 Feb 2535776 x 35796 km, 1436.1 min, 8°.8
175.0 eastUSA 263 (Wideband Global SATCOM 7)407462015-036A2021 Feb 2535786 x 35787 km, 1436.1 min, 0°.0
172.1 eastUSA 108 (UFO F-4)234671995-003A2021 Feb 2435769 x 35804 km, 1436.1 min, 9°.8
171.6 eastUSA 138 (UFO F-8)252581998-016A2021 Feb 2435769 x 35804 km, 1436.1 min, 8°.9
152.1 eastUSA 169 (Milstar 6)277112003-012A2021 Feb 2535774 x 35798 km, 1436.1 min, 9°.4
149.8 eastUSA 272 (Wideband Global SATCOM 8)418792016-075A2021 Feb 2535786 x 35789 km, 1436.1 min, 0°.0
139.0 eastUSA 282 (SBIRS GEO 4)431622018-009A2021 Feb 2435779 x 35795 km, 1436.1 min, 4°.5
134.4 eastUSA 153 (DSCS III F-12)265752000-065A2021 Feb 2535780 x 35793 km, 1436.1 min, 8°.3
134.1 eastUSA 283433392018-036A2021 Feb 2435784 x 35789 km, 1436.1 min, 0°.0
111.0 eastUSA 246 (AEHF 3)392562013-050A2021 Feb 2535762 x 35813 km, 1436.2 min, 0°.7
103.8 eastUSA 113 (DSCS III F-9)236281995-038A2021 Feb 2535778 x 35795 km, 1436.1 min, 11°.7
88.4 eastUSA 233 (Wideband Global SATCOM 4)380702012-003A2021 Feb 2435785 x 35789 km, 1436.1 min, 0°.0
87.4 eastUSA 176 (DSP F-22)281582004-004A2021 Feb 2435782 x 35790 km, 1436.1 min, 9°.5
75.2 eastUSA 174 (UFO F-11)281172003-057A2021 Feb 2435764 x 35810 km, 1436.1 min, 6°.4
75.0 eastMUOS 4 (Mobile User Objective System 4)408872015-044A2021 Feb 2535538 x 36035 km, 1436.1 min, 2°.7
73.9 eastOPS 6063 (Rhyolite 2)63801973-013A2021 Feb 2435710 x 35865 km, 1436.1 min, 5°.3
71.9 eastUSA 46 (FltSatCom F-8)202531989-077A2021 Feb 2535771 x 35803 km, 1436.1 min, 13°.0
66.2 eastUSA 230 (SBIRS GEO 1)374812011-019A2021 Feb 2435780 x 35793 km, 1436.1 min, 1°.9
60.3 eastUSA 291 (Wideband Global SATCOM 10)440712019-014A2021 Feb 2435784 x 35789 km, 1436.1 min, 0°.0
57.5 eastUSA 204 (Wideband Global SATCOM 2)347132009-017A2021 Feb 2435783 x 35790 km, 1436.1 min, 0°.1
54.5 eastUSA 292 (AEHF 5)444812019-051A2021 Feb 2535768 x 35803 km, 1436.0 min, 5°.4
28.7 eastUSA 95 (UFO F-2)227871993-056A2021 Feb 2435762 x 35810 km, 1436.1 min, 11°.4
20.6 eastUSA 241 (SBIRS GEO 2)391202013-011A2021 Feb 2535780 x 35793 km, 1436.1 min, 1°.9
18.9 eastUSA 164 (Milstar 5)271682002-001A2021 Feb 2535776 x 35798 km, 1436.1 min, 9°.0
8.1 eastUSA 130 (DSP F-19)247371997-008A2021 Feb 2535782 x 35789 km, 1436.0 min, 13°.7
6.0 eastUSA 195 (Wideband Global SATCOM 1)322582007-046A2021 Feb 2535784 x 35790 km, 1436.1 min, 0°.0
4.0 eastUSA 214 (AEHF 1)368682010-039A2021 Feb 2535773 x 35800 km, 1436.1 min, 3°.4

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: 2021 Feb 25

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