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| Geosynchronous Satellites - By Age
This a list of satellites in geosynchronous orbit shown in the order in which they were launched.
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 giving the appearance of an intentionally geosynchronous orbit. This includes a number of spent rocket bodies.
Updated: 2025 May 19, 04:47 UTC
Longi- tude (°) |
Satellite |
Cat no |
Desig- nation |
Orbit Epoch |
Orbit |
64.8 E | OPS 5346 (Rhyolite 1) | 4418 | 1970-046A | 2021 Jun 1 | 35746 x 35832 km, 1436.2 min, 2°.5 | 10.4 E | OPS 4966 (Canyon 6, AFP-827 6) | 7963 | 1975-055A | 2020 Jan 19 | 30029 x 41530 km, 1435.7 min, 16°.2 | 25.8 W | OPS 4258 (Aquacade 3) | 10508 | 1977-114A | 2025 Feb 18 | 35701 x 35884 km, 1436.4 min, 11°.3 | 16.7 W | Ekran (Ekran № 19L) | 11890 | 1980-060A | 2020 May 29 | 35739 x 35831 km, 1436.0 min, 10°.7 | 83.7 E | USA 37 (Chalet 6) | 19976 | 1989-035A | 2022 Aug 23 | 31806 x 39768 km, 1436.1 min, 7°.8 | 40.8 E | USA 105 (Mercury 1) | 23223 | 1994-054A | 2025 Apr 3 | 35665 x 35909 km, 1436.1 min, 13°.1 | 126.4 E | USA 110 (Mentor 1, Advanced Orion 1) | 23567 | 1995-022A | 2021 Jan 17 | 35652 x 35922 km, 1436.1 min, 15°.1 | 51.3 E | USA 118 (Mercury 2) | 23855 | 1996-026A | 2025 Apr 3 | 34376 x 37198 km, 1436.1 min, 8°.1 | 26.5 W | USA 139 (Mentor 2, Advanced Orion 2) | 25336 | 1998-029A | 2025 Apr 3 | 35623 x 35951 km, 1436.1 min, 7°.4 | 110.1 E | USA 155 (SDS-3 F-1) | 26635 | 2000-080A | 2021 Jan 13 | 35726 x 35847 km, 1436.1 min, 9°.3 | 127.1 W | USA 162 (SDS-3 F-2) | 26948 | 2001-046A | 2024 Apr 30 | 35772 x 35802 km, 1436.1 min, 12°.9 | 67.7 E | USA 171 (Mentor 3, Advanced Orion 3) | 27937 | 2003-041A | 2022 Sep 20 | 35617 x 35958 km, 1436.1 min, 12°.7 | 44.0 E | USA 202 (Mentor 4, Advanced Orion 4) | 33490 | 2009-001A | 2025 Apr 3 | 35726 x 35849 km, 1436.1 min, 8°.1 | 11.7 E | Sicral 1B | 34810 | 2009-020A | 2025 Apr 3 | 35773 x 35802 km, 1436.1 min, 2°.1 | 21.1 E | USA 207 (PAN) | 35815 | 2009-047A | 2025 Apr 3 | 35734 x 35844 km, 1436.2 min, 0°.1 | 95.5 E | USA 223 (Mentor 5, Advanced Orion 5) | 37232 | 2010-063A | 2021 Sep 7 | 35643 x 35931 km, 1436.1 min, 5°.1 | 23.8 W | USA 236 (SDS-3 F-6) | 38466 | 2012-033A | 2025 Feb 18 | 35765 x 35809 km, 1436.1 min, 6°.7 | 51.1 E | USA 237 (Mentor 6, Advanced Orion 6) | 38528 | 2012-034A | 2025 Feb 18 | 35651 x 35923 km, 1436.1 min, 6°.2 | 82.1 E | USA 250 (SIGINT?) | 39652 | 2014-020A | 2022 Sep 21 | 35755 x 35819 km, 1436.1 min, 2°.2 | 170.0 E | USA 252 (SDS [-3 F-7?] ) | 39751 | 2014-027A | 2020 Jun 17 | 35771 x 35803 km, 1436.1 min, 2°.7 | 128.6 E | USA 257 (CLIO) | 40208 | 2014-055A | 2020 Jun 28 | 35721 x 35847 km, 1436.0 min, 0°.1 | 37.0 E | Sicral 2 | 40614 | 2015-022B | 2025 Feb 18 | 35773 x 35802 km, 1436.1 min, 0°.0 | 105.5 E | USA 268 (Mentor 8, Advanced Orion 7) | 41584 | 2016-036A | 2021 Sep 7 | 35580 x 35995 km, 1436.1 min, 6°.3 | 10.0 W | USA 269 (SDS [-3 F-8?]) | 41724 | 2016-047A | 2025 Apr 3 | 35766 x 35808 km, 1436.1 min, 3°.2 | 93.0 E | Kirameki 2 (DSN 2) | 41940 | 2017-005A | 2020 Sep 15 | 35770 x 35804 km, 1436.1 min, 0°.0 | 92.1 E | USA 279 (SDS-4 F1?) | 42949 | 2017-066A | 2021 Sep 6 | 35771 x 35804 km, 1436.1 min, 2°.8 | 21.5 E | SES 16 (GovSat 1) | 43178 | 2018-013A | 2025 Apr 3 | 35770 x 35804 km, 1436.1 min, 0°.0 | 55.7 E | USA 311 (Mentor 8, Advanced Orion 8) | 47237 | 2019-095A | 2025 Feb 18 | 35610 x 35964 km, 1436.1 min, 4°.4 | 100.1 E | USA 353 (Mentor 10, Advanced Orion 10) | 59453 | 2024-067A | 2024 Jul 22 | 35557 x 36018 km, 1436.1 min, 7°.6 |
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.
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