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Orbits


Tyneside, UK
2020 Dec 2
Wednesday, Day 337

Maintained by:






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Other orbits:





Primary source of unclassified orbital elements

Orbital elements based on amateur observations
Sun-synchronous Satellites - United States

This a list of satellites in sun-synchronous orbit operated by the USA. Names are not necessarily those by which they are known in the NORAD catalogue used by SpaceTrack.

It is a snapshot and is updated daily. The measure that results in an entry in this table is that the drift rate of LTDN (Local Time at the Descending Node) is no more than twenty four minutes each year. Some satellites may have higher drift rates but they may still be acceptable to their owners/operators. They do not appear here. On the converse, although a satellite is in a sun-synchronous orbit, it is not necessarily active.


LTDN Satellite Cat
no
Desig- nation Orbit
Epoch
Orbit
13:42ACRIMSat (Active Cavity Radiometer Irradiance Monitor Satellite)260331999-070B2020 Dec 1666 x 705 km, 98.5 min, 98°.1
18:29AMS 3 (DMSP 5D-1 F-3)108201978-042A2020 Dec 1768 x 780 km, 100.3 min, 98°.5
00:57Amsat Echo (AO-51)283752004-025K2020 Dec 1692 x 812 km, 99.9 min, 98°.4
01:35Aqua (EOS PM-1)274242002-022A2020 Dec 1701 x 704 km, 98.8 min, 98°.2
10:28Athena462752020-061D2020 Dec 1517 x 519 km, 95.0 min, 97°.5
01:44Aura (EOS Chem-1)283762004-026A2020 Dec 1702 x 703 km, 98.8 min, 98°.2
02:09Calipso (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations)291082006-016B2020 Dec 1684 x 686 km, 98.5 min, 98°.3
09:27CEPE (Cylindrical Electrostatic Probe Experiment)47941970-106B2020 Dec 11422 x 1480 km, 114.9 min, 101°.5
02:10Cloudsat291072006-016A2020 Dec 1685 x 686 km, 98.5 min, 98°.3
06:24COBE203221989-089A2020 Dec 1871 x 883 km, 102.5 min, 98°.9
06:10Coriolis276402003-001A2020 Dec 1819 x 838 km, 101.5 min, 98°.7
20:38DMSP 4A F-9 (Defense Meteorological Satellite Program)29201967-080A2020 Dec 1815 x 871 km, 101.8 min, 98°.9
20:24DMSP 5A F-1 (Defense Meteorological Satellite Program)32661968-042A2020 Dec 1803 x 879 km, 101.7 min, 98°.8
20:21DMSP 5A F-3 (Defense Meteorological Satellite Program)40471969-062A2020 Dec 1763 x 829 km, 100.8 min, 98°.7
18:57DMSP 5C F-1 (Defense Meteorological Satellite Program)74111974-063A2020 Dec 1769 x 829 km, 100.8 min, 98°.7
18:38DMSP 5C F-2 (Defense Meteorological Satellite Program)78161975-043A2020 Dec 1775 x 850 km, 101.1 min, 98°.8
17:55DMSP 5D-2 F-6 (Defense Meteorological Satellite Program)137361982-118A2020 Dec 1788 x 800 km, 100.7 min, 98°.6
00:47ESSA 220911966-016A2020 Dec 11354 x 1415 km, 113.4 min, 101°.2
08:59ESSA 937641969-016A2020 Dec 11425 x 1505 km, 115.2 min, 101°.6
01:45Fedsat275982002-056B2020 Dec 1789 x 803 km, 100.8 min, 98°.6
10:30Geoeye 1333312008-042A2020 Dec 1674 x 685 km, 98.3 min, 98°.1
09:11Global-1 (Pathfinder 1)417872016-059E2020 Dec 1659 x 703 km, 98.4 min, 98°.0
10:17Global-2438122018-099BG2020 Dec 1571 x 590 km, 96.3 min, 97°.7
17:56GNOMES 1 (GNSS Navigation and Occultation Measurement Satellites)462662020-059B2020 Dec 1601 x 608 km, 96.8 min, 97°.9
10:28ION mk01 SCV LUCAS (In Orbit Now Satellite Carrier Vehicle)462742020-061C2020 Dec 1517 x 523 km, 95.0 min, 97°.5
17:40IRAS137771983-004A2020 Dec 1877 x 907 km, 102.8 min, 99°.0
17:44IRIS (Interface Region Imaging Spectrometer)391972013-033A2020 Dec 1613 x 653 km, 97.4 min, 98°.0
10:04ITOS 143201970-008A2020 Dec 11434 x 1478 km, 115.0 min, 101°.7
09:33Landsat 7256821999-020A2020 Dec 1701 x 703 km, 98.8 min, 98°.1
10:12Landsat 8 (Landsat Data Continuity Mission)390842013-008A2020 Dec 1701 x 704 km, 98.8 min, 98°.2
10:42LKW-2 (Land Survey Satellite 2)430802017-084A2020 Dec 1490 x 502 km, 94.5 min, 97°.4
23:19Nimbus 3 (Nimbus B2)38901969-037A2020 Dec 11071 x 1129 km, 107.3 min, 99°.9
23:42Nimbus 4 (Nimbus D)43621970-025A2020 Dec 11087 x 1097 km, 107.1 min, 100°.0
23:23Nimbus 5 (Nimbus E)63051972-097A2020 Dec 11087 x 1101 km, 107.1 min, 99°.9
22:52Nimbus 6 (Nimbus F)79241975-052A2020 Dec 11100 x 1113 km, 107.4 min, 100°.1
10:03NOAA 1 (ITOS A)47931970-106A2020 Dec 11423 x 1472 km, 114.8 min, 101°.6
03:40NOAA 2 (ITOS D)62351972-082A2020 Dec 11448 x 1455 km, 114.9 min, 101°.9
03:38NOAA 4 (ITOS G)75291974-089A2020 Dec 11444 x 1459 km, 114.9 min, 101°.8
03:22NOAA 5 (ITOS H)90571976-077A2020 Dec 11508 x 1524 km, 116.3 min, 102°.0
04:36NOAA 8 (NOAA E)139231983-022A2020 Dec 1784 x 808 km, 100.8 min, 98°.6
04:52NOAA 10 (NOAA G)169691986-073A2020 Dec 1789 x 807 km, 100.8 min, 98°.5
06:03NOAA 12 (NOAA D)212631991-032A2020 Dec 1796 x 815 km, 101.0 min, 98°.5
07:19NOAA 15 (NOAA K)253381998-030A2020 Dec 1797 x 813 km, 101.0 min, 98°.7
10:02NOAA 16 (NOAA L)265362000-055A2020 Dec 1841 x 855 km, 101.9 min, 98°.7
01:55NOAA 17 (NOAA M)274532002-032A2020 Dec 1799 x 817 km, 101.0 min, 98°.6
01:24NOAA 20 (JPSS 1)430132017-073A2020 Dec 1826 x 827 km, 101.4 min, 98°.7
01:35OCO 2 (Orbiting Carbon Observatory)400592014-035A2020 Dec 1701 x 704 km, 98.8 min, 98°.2
13:13OrbView-2248831997-037A2020 Dec 1778 x 781 km, 100.4 min, 98°.6
09:29Oscar 5 (Australis Oscar 5)43211970-008B2020 Dec 11434 x 1477 km, 115.0 min, 101°.6
03:38Oscar 7 (AO-7)75301974-089B2020 Dec 11439 x 1459 km, 114.9 min, 101°.8
02:33Oscar 8 (AO-8)107031978-026B2020 Dec 1891 x 902 km, 102.9 min, 99°.1
06:08QuakeSat278452003-031F2020 Dec 1812 x 823 km, 101.2 min, 98°.7
23:09SECOR 13 (EGRS 13)38911969-037B2020 Dec 11069 x 1128 km, 107.2 min, 99°.9
10:45Skysat 1394182013-066C2020 Dec 1556 x 584 km, 96.1 min, 97°.6
10:42Skysat 3 (Skysat C1)416012016-040C2020 Dec 1450 x 452 km, 93.6 min, 97°.2
10:12Skysat 4 (Skysat C2)417732016-058D2020 Dec 1450 x 453 km, 93.6 min, 97°.2
10:12Skysat 5 (Skysat C3)417742016-058E2020 Dec 1450 x 453 km, 93.6 min, 97°.2
10:10Skysat 6 (Skysat C4)417712016-058B2020 Dec 1450 x 453 km, 93.6 min, 97°.2
10:08Skysat 7 (Skysat C5)417722016-058C2020 Dec 1492 x 494 km, 94.5 min, 97°.3
13:12Skysat 8 (Skysat C6)429922017-068F2020 Dec 1447 x 452 km, 93.6 min, 97°.3
13:11Skysat 9 (Skysat C7)429912017-068E2020 Dec 1448 x 451 km, 93.6 min, 97°.3
13:11Skysat 10 (Skysat C8)429902017-068D2020 Dec 1448 x 451 km, 93.6 min, 97°.3
13:08Skysat 11 (Skysat C9)429892017-068C2020 Dec 1448 x 451 km, 93.6 min, 97°.2
13:10Skysat 12 (Skysat C10)429882017-068B2020 Dec 1448 x 452 km, 93.6 min, 97°.3
13:10Skysat 13 (Skysat C11)429872017-068A2020 Dec 1443 x 457 km, 93.6 min, 97°.2
10:15Skysat 14 (Skysat C12)437972018-099AR2020 Dec 1449 x 453 km, 93.6 min, 97°.2
10:14SkySat 15 (Skysat C13)438022018-099AW2020 Dec 1462 x 470 km, 93.9 min, 97°.2
05:59SMAP (Soil Moisture Active Passive)403762015-003A2020 Dec 1681 x 683 km, 98.4 min, 98°.1
10:20STPSat-5437622018-099E2020 Dec 1569 x 589 km, 96.2 min, 97°.7
01:24Suomi NPP (Suomi National Polar-orbiting Partnership)378492011-061A2020 Dec 1826 x 828 km, 101.4 min, 98°.7
10:30Terra (EOS AM-1)259941999-068A2020 Dec 1702 x 703 km, 98.8 min, 98°.2
09:23TIROS-N110601978-096A2020 Dec 1824 x 838 km, 101.5 min, 98°.7
13:45TIROS 1014301965-051A2020 Dec 1717 x 798 km, 100.0 min, 98°.3
13:56TOMS-EP239401996-037A2020 Dec 1689 x 728 km, 98.9 min, 98°.3
23:20TOPO 143631970-025B2020 Dec 11084 x 1086 km, 106.9 min, 99°.9
18:10TRACE252801998-020A2020 Dec 1509 x 541 km, 95.1 min, 97°.5
18:02USA 26 (DMSP 5D-2 F-8)181231987-053A2020 Dec 1821 x 838 km, 101.5 min, 98°.7
06:55USA 73 (DMSP 5D-2 F-11)217981991-082A2020 Dec 1828 x 846 km, 101.7 min, 98°.9
05:44USA 109 (DMSP 5D-2 F-13)235331995-015A2020 Dec 1834 x 844 km, 101.7 min, 98°.8
04:17USA 172 (DMSP 5D-3 F-16)280542003-048A2020 Dec 1841 x 853 km, 101.9 min, 98°.9
08:04USA 186 (KH- 11 Block-4 F1?/Crystal)288882005-042A2020 Oct 12261 x 425 km, 91.4 min, 96°.9
06:38USA 191 (DMSP 5D-3 F-17)295222006-050A2020 Dec 1838 x 853 km, 101.8 min, 98°.8
12:02USA 205 (STSS-ATRR)349032009-023A2020 Sep 18869 x 875 km, 102.4 min, 98°.9
04:40USA 210 (DMSP 5D-3 F-18)359512009-057A2020 Dec 1841 x 855 km, 101.9 min, 98°.7
20:17USA 216 (SBSS)371682010-048A2020 Dec 1623 x 626 km, 97.2 min, 97°.9
12:56USA 224 (KH- 11 Block-4 F2?/Crystal)373482011-002A2020 Sep 25260 x 1018 km, 97.5 min, 97°.9
09:39USA 245 (KH-11 Block-4 F3?/Crystal)392322013-043A2020 Sep 14268 x 1012 km, 97.5 min, 97°.9
06:11USA 249 (DMSP 5D-3 F-19)396302014-015A2020 Dec 1839 x 853 km, 101.8 min, 98°.8
01:33WestPac253981998-043E2020 Dec 1816 x 816 km, 101.2 min, 98°.7
07:58WISE (Wide Field IR Explorer)361192009-071A2020 Dec 1472 x 477 km, 94.1 min, 97°.3
13:31WorldView 1320602007-041A2020 Dec 1491 x 494 km, 94.5 min, 97°.4
10:26WorldView 2359462009-055A2020 Dec 1765 x 767 km, 100.2 min, 98°.5
10:30Worldview 3401152014-048A2020 Dec 1612 x 615 km, 97.0 min, 97°.8

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 Dec 1
SpaceTrack - updated: 2020 Dec 2

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