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Orbits


Tyneside, UK
2020 Apr 6
Monday, Day 97

Maintained by:






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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
13:48ACRIMSAT260331999-070B2020 Apr 5666 x 705 km, 98.5 min, 98°.1
18:25AMS 3 (DMSP 5D-1 F-3)108201978-042A2020 Apr 5768 x 780 km, 100.3 min, 98°.5
00:55Amsat Echo (AO-51)283752004-025K2020 Apr 5692 x 812 km, 99.9 min, 98°.4
01:35Aqua (EOS PM-1)274242002-022A2020 Apr 5702 x 703 km, 98.8 min, 98°.2
01:44Aura (EOS Chem-1)283762004-026A2020 Apr 5702 x 703 km, 98.8 min, 98°.2
01:58Calipso (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations)291082006-016B2020 Apr 5684 x 686 km, 98.5 min, 98°.2
09:38CEPE (Cylindrical Electrostatic Probe Experiment)47941970-106B2020 Apr 51422 x 1480 km, 114.9 min, 101°.6
01:59Cloudsat291072006-016A2020 Apr 5685 x 686 km, 98.5 min, 98°.2
06:28COBE203221989-089A2020 Apr 4871 x 882 km, 102.5 min, 98°.9
06:11Coriolis276402003-001A2020 Apr 5819 x 838 km, 101.5 min, 98°.7
19:58DMSP 2 F-3 (DAPP 15)21251966-026A2020 Apr 5593 x 815 km, 98.9 min, 98°.1
20:29DMSP 4A F-929201967-080A2020 Apr 5816 x 871 km, 101.8 min, 98°.9
20:25DMSP 5A F-132661968-042A2020 Apr 5804 x 879 km, 101.7 min, 98°.8
18:54DMSP 5B F-362751972-089A2020 Apr 5773 x 825 km, 100.8 min, 98°.5
18:48DMSP 5C F-174111974-063A2020 Apr 5768 x 829 km, 100.8 min, 98°.7
18:26DMSP 5C F-278161975-043A2020 Apr 5776 x 850 km, 101.1 min, 98°.8
17:56DMSP 5D-2 F-6137361982-118A2020 Apr 5788 x 800 km, 100.7 min, 98°.6
01:00ESSA 220911966-016A2020 Apr 51354 x 1415 km, 113.4 min, 101°.2
09:12ESSA 937641969-016A2020 Apr 51425 x 1505 km, 115.2 min, 101°.6
01:47Fedsat275982002-056B2020 Apr 5789 x 803 km, 100.8 min, 98°.6
10:30Geoeye 1333312008-042A2020 Apr 5674 x 685 km, 98.3 min, 98°.1
17:46IRAS137771983-004A2020 Apr 5877 x 908 km, 102.8 min, 99°.0
17:40IRIS (Interface Region Imaging Spectrometer)391972013-033A2020 Apr 5613 x 654 km, 97.4 min, 98°.0
10:08ITOS 143201970-008A2020 Apr 51434 x 1478 km, 115.0 min, 101°.7
09:48Landsat 7256821999-020A2020 Apr 5701 x 704 km, 98.8 min, 98°.1
10:12Landsat 8 (Landsat Data Continuity Mission)390842013-008A2020 Apr 5701 x 704 km, 98.8 min, 98°.2
10:44LKW-2 (Land Survey Satellite 2)430802017-084A2020 Apr 5490 x 501 km, 94.5 min, 97°.4
06:07Microsat 2A (Tintin A)432162018-020B2020 Apr 5491 x 512 km, 94.6 min, 97°.5
06:10Microsat 2B (Tintin B)432172018-020C2020 Apr 5491 x 503 km, 94.6 min, 97°.5
23:24Nimbus 3 (Nimbus B2)38901969-037A2020 Apr 51070 x 1130 km, 107.3 min, 99°.9
23:38Nimbus 4 (Nimbus D)43621970-025A2020 Apr 51086 x 1098 km, 107.1 min, 100°.0
23:22Nimbus 5 (Nimbus E)63051972-097A2020 Apr 51088 x 1100 km, 107.1 min, 99°.9
22:40Nimbus 6 (Nimbus F)79241975-052A2020 Apr 51101 x 1112 km, 107.4 min, 100°.1
10:06NOAA 1 (ITOS A)47931970-106A2020 Apr 51423 x 1473 km, 114.8 min, 101°.7
03:28NOAA 2 (ITOS D)62351972-082A2020 Apr 51448 x 1455 km, 114.9 min, 101°.8
03:36NOAA 3 (ITOS F)69201973-086A2020 Apr 51500 x 1510 km, 116.1 min, 102°.1
03:29NOAA 4 (ITOS G)75291974-089A2020 Apr 51444 x 1458 km, 114.9 min, 101°.8
03:27NOAA 5 (ITOS H)90571976-077A2020 Apr 51508 x 1524 km, 116.3 min, 102°.0
05:24NOAA 6 (NOAA A)114161979-057A2020 Apr 5772 x 788 km, 100.4 min, 98°.7
04:33NOAA 8 (NOAA E)139231983-022A2020 Apr 5785 x 808 km, 100.8 min, 98°.6
05:02NOAA 10 (NOAA G)169691986-073A2020 Apr 5789 x 807 km, 100.8 min, 98°.5
06:17NOAA 12 (NOAA D)212631991-032A2020 Apr 5795 x 815 km, 101.0 min, 98°.5
07:10NOAA 15 (NOAA K)253381998-030A2020 Apr 5797 x 814 km, 101.0 min, 98°.7
10:12NOAA 16 (NOAA L)265362000-055A2020 Apr 5841 x 855 km, 101.9 min, 98°.7
02:01NOAA 17 (NOAA M)274532002-032A2020 Apr 5799 x 818 km, 101.0 min, 98°.6
01:25NOAA 20 (JPSS 1)430132017-073A2020 Apr 5826 x 828 km, 101.4 min, 98°.7
20:43NOOR 1A448272019-084D2020 Apr 5337 x 388 km, 91.8 min, 97°.0
01:36OCO 2 (Orbiting Carbon Observatory)400592014-035A2020 Apr 5702 x 704 km, 98.8 min, 98°.2
13:03OrbView-2248831997-037A2020 Apr 5779 x 781 km, 100.5 min, 98°.6
09:41Oscar 5 (Australis Oscar 5)43211970-008B2020 Apr 51434 x 1477 km, 115.0 min, 101°.6
03:39Oscar 6 (AO-6)62361972-082B2020 Apr 51448 x 1455 km, 114.9 min, 101°.9
03:29Oscar 7 (AO-7)75301974-089B2020 Apr 51440 x 1459 km, 114.9 min, 101°.8
02:30Oscar 8 (AO-8)107031978-026B2020 Apr 5891 x 902 km, 102.9 min, 99°.0
09:24Pathfinder 1417872016-059E2020 Apr 5660 x 703 km, 98.4 min, 98°.0
06:09QuakeSat278452003-031F2020 Apr 5812 x 823 km, 101.2 min, 98°.7
23:15SECOR 13 (EGRS 13)38911969-037B2020 Apr 51069 x 1128 km, 107.2 min, 99°.9
10:53Skysat 1394182013-066C2020 Apr 5553 x 587 km, 96.1 min, 97°.6
10:45Skysat 3 (Skysat Gen 2-1)416012016-040C2020 Apr 3464 x 471 km, 93.9 min, 97°.2
10:16Skysat 4 (Skysat C2)417732016-058D2020 Apr 5451 x 454 km, 93.6 min, 97°.2
10:15Skysat 5 (Skysat C3)417742016-058E2020 Apr 5454 x 464 km, 93.8 min, 97°.2
10:13Skysat 6 (Skysat C5)417722016-058C2020 Apr 5493 x 496 km, 94.5 min, 97°.4
10:14Skysat 7 (Skysat C4)417712016-058B2020 Apr 5453 x 465 km, 93.8 min, 97°.2
13:11Skysat C6429922017-068F2020 Apr 5451 x 453 km, 93.6 min, 97°.2
13:10Skysat C7429912017-068E2020 Apr 5451 x 453 km, 93.6 min, 97°.2
13:10Skysat C8429902017-068D2020 Apr 5450 x 453 km, 93.6 min, 97°.2
13:07Skysat C9429892017-068C2020 Apr 5451 x 453 km, 93.6 min, 97°.2
13:09Skysat C10429882017-068B2020 Apr 5449 x 455 km, 93.6 min, 97°.2
13:10Skysat C11429872017-068A2020 Apr 5446 x 458 km, 93.6 min, 97°.2
05:59SMAP (Soil Moisture Active Passive)403762015-003A2020 Apr 5681 x 683 km, 98.4 min, 98°.1
10:22STPSat-5437622018-099E2020 Apr 5568 x 590 km, 96.3 min, 97°.7
01:24Suomi NPP (Suomi National Polar-orbiting Partnership)378492011-061A2020 Apr 5826 x 828 km, 101.4 min, 98°.7
10:30Terra (EOS AM-1)259941999-068A2020 Apr 5702 x 703 km, 98.8 min, 98°.2
09:24TIROS-N110601978-096A2020 Apr 5824 x 838 km, 101.5 min, 98°.7
13:55TOMS-EP239401996-037A2020 Apr 5689 x 728 km, 98.9 min, 98°.2
23:14TOPO 143631970-025B2020 Apr 51083 x 1087 km, 106.9 min, 100°.0
18:15TRACE252801998-020A2020 Apr 5509 x 543 km, 95.2 min, 97°.5
18:04USA 26 (DMSP 5D-2 F-8)181231987-053A2020 Apr 5820 x 839 km, 101.5 min, 98°.7
20:50USA 29 (DMSP 5D-2 F-9)188221988-006A2020 Apr 5797 x 805 km, 100.9 min, 98°.5
06:41USA 73 (DMSP 5D-2 F-11)217981991-082A2020 Apr 5829 x 845 km, 101.7 min, 98°.9
05:40USA 109 (DMSP 5D-2 F-13)235331995-015A2020 Apr 5834 x 845 km, 101.7 min, 98°.8
04:06USA 172 (DMSP 5D-3 F-16)280542003-048A2020 Apr 5841 x 853 km, 101.9 min, 98°.9
08:03USA 186 (KH- 11 Block-4 F1?/Crystal)288882005-042A2020 Apr 3266 x 454 km, 91.7 min, 96°.9
06:38USA 191 (DMSP 5D-3 F-17)295222006-050A2020 Apr 5838 x 853 km, 101.8 min, 98°.8
12:02USA 205 (STSS-ATRR)349032009-023A2020 Apr 3865 x 877 km, 102.4 min, 98°.9
20:16USA 216 (SBSS)371682010-048A2020 Apr 5623 x 626 km, 97.2 min, 97°.9
12:59USA 224 (KH- 11 Block-4 F2?/Crystal)373482011-002A2020 Feb 22262 x 1020 km, 97.5 min, 97°.9
09:38USA 245 (KH- 11 Block-4 F3?/Crystal)392322013-043A2020 Apr 3269 x 1022 km, 97.6 min, 97°.9
06:17USA 249 (DMSP 5D-3 F-19)396302014-015A2020 Apr 5838 x 853 km, 101.8 min, 98°.8
01:28WESTPAC253981998-043E2020 Apr 5815 x 816 km, 101.2 min, 98°.7
07:57WISE (Wide Field IR Explorer)361192009-071A2020 Apr 5475 x 476 km, 94.1 min, 97°.3
13:31WorldView 1320602007-041A2020 Apr 5491 x 494 km, 94.5 min, 97°.4
10:28WorldView 2359462009-055A2020 Apr 5765 x 767 km, 100.2 min, 98°.4
10:39Worldview 3401152014-048A2020 Apr 5612 x 614 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 Apr 6
SpaceTrack - updated: 2020 Apr 6

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