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Orbits


Tyneside, UK
2019 Sep 21
Saturday, Day 264

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
8° westOPS 9432 (DSCS II A-2)55881971-095B2019 Sep 1835776 x 35814 km, 1436.5 min, 7°.7
10° westUSA 269 (SDS [-3 F-8?])417242016-047A2019 Jun 1035746 x 35828 km, 1436.1 min, 3°.6
12° westUSA 211 (Wideband Global SATCOM 3)361082009-068A2019 Sep 1935786 x 35788 km, 1436.1 min, 0°.0
15° westMUOS 3 (Mobile User Objective System 3)403742015-002A2019 Sep 1835536 x 36036 km, 1436.1 min, 3°.1
22° westOPS 7329 (Canyon 3)45101970-069A2019 Sep 1732078 x 39486 km, 1435.8 min, 11°.7
22° westUSA 146 (UFO F-10)259671999-063A2019 Sep 1935777 x 35800 km, 1436.2 min, 7°.6
24° westUSA 236 (SDS-3 F-6)384662012-033A2019 Jun 1035773 x 35802 km, 1436.1 min, 1°.7
27° westUSA 139 (Orion 2)253361998-029A2019 Sep 535622 x 35952 km, 1436.1 min, 8°.7
39° westUSA 99 (Milstar 1 DFS)229881994-009A2019 Sep 1935774 x 35799 km, 1436.1 min, 13°.7
42° westUSA 170 (DSCS III F-14)278752003-040A2019 Sep 1935771 x 35803 km, 1436.1 min, 5°.3
49° westUSA 159 (DSP F-21)268802001-033A2019 Sep 1935783 x 35793 km, 1436.2 min, 10°.5
52° westUSA 243 (Wideband Global SATCOM 5)391682013-024A2019 Sep 1935785 x 35788 km, 1436.1 min, 0°.0
68° westUSA 235 (AEHF SV-2)382542012-019A2019 Sep 1935768 x 35804 km, 1436.1 min, 1°.7
90° westUSA 115 (Milstar 2 DFS)237121995-060A2019 Sep 1935779 x 35795 km, 1436.1 min, 13°.1
100° westMUOS 2 (Mobile User Objective System 2)392062013-036A2019 Sep 1935571 x 36002 km, 1436.1 min, 2°.8
105° westMUOS 5 (Mobile User Objective System 5)416222016-041A2019 Sep 1934911 x 36662 km, 1436.1 min, 7°.8
110° westOPS 9431 (DSCS II A-1)55871971-095A2019 Sep 1935773 x 35805 km, 1436.2 min, 7°.7
112° westUSA 135 (DSCS III F-10)250191997-065A2019 Sep 1935769 x 35801 km, 1436.0 min, 9°.9
120° westUSA 169 (Milstar 6)277112003-012A2019 Sep 1935772 x 35800 km, 1436.1 min, 8°.7
122° westUSA 291 (WGS 10)440712019-014A2019 Sep 1935785 x 35789 km, 1436.1 min, 0°.0
130° westUSA 167 (DSCS III F-13)276912003-008A2019 Sep 1935779 x 35794 km, 1436.1 min, 6°.1
135° westUSA 244 (Wideband Global SATCOM 6)392222013-041A2019 Sep 1935785 x 35789 km, 1436.1 min, 0°.0
141° westUSA 227 (SDS-3 F-5)373772011-011A2019 Jun 2235772 x 35803 km, 1436.1 min, 4°.5
159° westUSA 273 (SBIRS GEO 3)419372017-004A2019 Sep 1935774 x 35797 km, 1436.0 min, 4°.3
162° westOPS 4029 (Vortex 3)129301981-107A2019 Jul 1032050 x 39520 km, 1436.0 min, 7°.1
165° westUSA 149 (DSP F-20)263562000-024A2019 Sep 1935783 x 35797 km, 1436.3 min, 11°.3
172° westUSA 127 (UFO F-7)239671996-042A2019 Sep 1935752 x 35804 km, 1435.7 min, 9°.0
177° westMUOS 1 (Mobile User Objective System 1)380932012-009A2019 Sep 1835537 x 36036 km, 1436.1 min, 2°.6
180° westUSA 148 (DSCS III F-11)260522000-001A2019 Sep 1935781 x 35790 km, 1436.1 min, 8°.0
175° eastUSA 263 (Wideband Global SATCOM 7)407462015-036A2019 Sep 1935787 x 35788 km, 1436.1 min, 0°.0
172° eastUSA 108 (UFO F-4)234671995-003A2019 Sep 1935772 x 35799 km, 1436.1 min, 9°.9
172° eastUSA 138 (UFO F-8)252581998-016A2019 Sep 1935777 x 35797 km, 1436.1 min, 8°.4
170° eastUSA 252 (SDS [-3 F-7?] )397512014-027A2019 Jul 535773 x 35802 km, 1436.1 min, 2°.4
152° eastUSA 246 (AEHF SV-3)392562013-050A2019 Sep 1935782 x 35791 km, 1436.1 min, 1°.0
150° eastUSA 272 (Wideband Global SATCOM 8)418792016-075A2019 Sep 1935787 x 35789 km, 1436.2 min, 0°.0
139° eastUSA 282 (SBIRS GEO 4)431622018-009A2019 Sep 1935776 x 35797 km, 1436.1 min, 5°.5
134° eastUSA 153 (DSCS III F-12)265752000-065A2019 Sep 1935781 x 35793 km, 1436.1 min, 7°.5
134° eastUSA 283433392018-036A2019 Sep 1735784 x 35786 km, 1436.0 min, 0°.0
127° eastUSA 110 (Orion 1/Mentor 1)235671995-022A2019 Aug 435535 x 36039 km, 1436.1 min, 14°.6
127° eastUSA 197 (DSP F-23)322872007-054A2019 Aug 135762 x 35784 km, 1435.4 min, 5°.6
111° eastUSA 157 (Milstar 4)267152001-009A2019 Sep 1935780 x 35795 km, 1436.1 min, 9°.1
110° eastUSA 155 (SDS-3 F-1)266352000-080A2019 Jul 1435758 x 35816 km, 1436.1 min, 8°.8
110° eastUSA 257 (CLIO)402082014-055A2019 Sep 735740 x 35835 km, 1436.1 min, 0°.0
105° eastUSA 268 (Mentor 7)415842016-036A2019 Sep 835569 x 36005 km, 1436.1 min, 6°.8
104° eastUSA 113 (DSCS III F-9)236281995-038A2019 Sep 1935780 x 35793 km, 1436.1 min, 11°.2
100° eastUSA 162 (SDS-3 F-2)269482001-046A2019 Jul 1535750 x 35824 km, 1436.1 min, 10°.3
96° eastUSA 223 (Adv Orion/Mentor 5)372322010-063A2019 Sep 735601 x 35973 km, 1436.1 min, 3°.7
92° eastUSA 279429492017-066A2019 Jul 1535772 x 35802 km, 1436.1 min, 4°.0
88° eastUSA 233 (Wideband Global SATCOM 4)380702012-003A2019 Sep 1935784 x 35789 km, 1436.1 min, 0°.0
87° eastUSA 176 (DSP F-22)281582004-004A2019 Sep 1935785 x 35786 km, 1436.0 min, 8°.8
82° eastUSA 250 (SIGINT?)396522014-020A2019 Jul 1435773 x 35801 km, 1436.1 min, 1°.6
82° eastUSA 37 (Chalet 6)199761989-035A2019 Jul 2731647 x 39927 km, 1436.1 min, 8°.0
78° eastOPS 5346 (Rhyolite 1)44181970-046A2018 Oct 2535758 x 35827 km, 1436.4 min, 4°.7
78° eastUSA 253 (GSSAP 1)400992014-043A2019 Sep 1035783 x 35791 km, 1436.1 min, 0°.1
75° eastMUOS 4 (Mobile User Objective System 4)408872015-044A2019 Sep 1935571 x 36002 km, 1436.1 min, 3°.3
75° eastUSA 174 (UFO F-11)281172003-057A2019 Sep 1935778 x 35793 km, 1436.0 min, 5°.8
74° eastOPS 6063 (Rhyolite 2)63801973-013A2019 Sep 1835668 x 35903 km, 1436.0 min, 6°.5
72° eastUSA 46 (FltSatCom F-8)202531989-077A2019 Sep 1935777 x 35796 km, 1436.1 min, 13°.1
68° eastUSA 171 (Adv Orion/Mentor 3)279372003-041A2019 Jul 1535585 x 35989 km, 1436.1 min, 10°.7
66° eastUSA 230 (SBIRS GEO 1)374812011-019A2019 Sep 1935776 x 35796 km, 1436.1 min, 2°.4
60° eastUSA 204 (Wideband Global SATCOM 2)347132009-017A2019 Sep 1935786 x 35788 km, 1436.1 min, 0°.0
57° eastUSA 275 (Wideband Global SATCOM 9)420752017-016A2019 Sep 1935785 x 35789 km, 1436.1 min, 0°.0
52° eastUSA 237 (Adv Orion?)385282012-034A2019 Apr 135583 x 35991 km, 1436.1 min, 1°.5
48° eastUSA 207 (PAN)358152009-047A2019 May 1435773 x 35802 km, 1436.1 min, 0°.0
47° eastUSA 118 (Mercury 2)238551996-026A2019 Aug 2334163 x 37412 km, 1436.1 min, 9°.2
44° eastUSA 105 (Mercury 1)232231994-054A2018 Oct 335645 x 35929 km, 1436.1 min, 11°.4
44° eastUSA 202 (Intruder? or Mentor?)334902009-001A2019 Feb 2535767 x 35808 km, 1436.1 min, 5°.4
29° eastUSA 95 (UFO F-2)227871993-056A2019 Sep 1835763 x 35811 km, 1436.1 min, 11°.2
21° eastUSA 241 (SBIRS GEO 2)391202013-011A2019 Sep 1935775 x 35798 km, 1436.1 min, 2°.5
19° eastUSA 164 (Milstar 5)271682002-001A2019 Sep 1835775 x 35799 km, 1436.1 min, 8°.5
8° eastUSA 130 (DSP F-20)247371997-008A2019 Sep 1935783 x 35791 km, 1436.1 min, 13°.4
6° eastUSA 195 (Wideband Global SATCOM 1)322582007-046A2019 Sep 1935784 x 35790 km, 1436.1 min, 0°.0
4° eastUSA 214 (AEHF SV-1)368682010-039A2019 Sep 1935774 x 35799 km, 1436.1 min, 2°.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: 2019 Sep 18
SpaceTrack - updated: 2019 Sep 20
Copyright © Robert Christy, all rights reserved
Reproduction in whole or in part without permission is prohibited