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Orbits


Tyneside, UK
2020 Aug 11
Tuesday, Day 224

Maintained by:






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Primary source of unclassified orbital elements

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

This a list of satellites in sun-synchronous orbit operated by the USA ordered by LTDN - Local Time at the Descending Node. 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
00:53ESSA 220911966-016A2020 Aug 101355 x 1414 km, 113.4 min, 101°.2
00:56Amsat Echo (AO-51)283752004-025K2020 Aug 10692 x 812 km, 99.9 min, 98°.4
01:24NOAA 20 (JPSS 1)430132017-073A2020 Aug 10826 x 828 km, 101.4 min, 98°.7
01:25Suomi NPP (Suomi National Polar-orbiting Partnership)378492011-061A2020 Aug 10826 x 828 km, 101.4 min, 98°.7
01:30WestPac253981998-043E2020 Aug 10815 x 816 km, 101.2 min, 98°.7
01:35Aqua (EOS PM-1)274242002-022A2020 Aug 10701 x 704 km, 98.8 min, 98°.2
01:36OCO 2 (Orbiting Carbon Observatory)400592014-035A2020 Aug 10701 x 704 km, 98.8 min, 98°.2
01:44Aura (EOS Chem-1)283762004-026A2020 Aug 10701 x 704 km, 98.8 min, 98°.2
01:46Fedsat275982002-056B2020 Aug 10789 x 803 km, 100.8 min, 98°.6
01:57NOAA 17 (NOAA M)274532002-032A2020 Aug 10799 x 818 km, 101.0 min, 98°.6
02:03Calipso (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations)291082006-016B2020 Aug 10684 x 686 km, 98.5 min, 98°.2
02:04Cloudsat291072006-016A2020 Aug 10684 x 686 km, 98.5 min, 98°.2
02:31Oscar 8 (AO-8)107031978-026B2020 Aug 10890 x 902 km, 102.9 min, 99°.0
03:24NOAA 5 (ITOS H)90571976-077A2020 Aug 101508 x 1524 km, 116.3 min, 102°.0
03:33NOAA 4 (ITOS G)75291974-089A2020 Aug 101444 x 1458 km, 114.9 min, 101°.8
03:34NOAA 2 (ITOS D)62351972-082A2020 Aug 101449 x 1454 km, 114.9 min, 101°.9
03:34Oscar 7 (AO-7)75301974-089B2020 Aug 101440 x 1458 km, 114.9 min, 101°.8
03:46Oscar 6 (AO-6)62361972-082B2020 Aug 101448 x 1454 km, 114.9 min, 101°.9
04:11USA 172 (DMSP 5D-3 F-16)280542003-048A2020 Aug 10841 x 853 km, 101.9 min, 98°.9
04:34NOAA 8 (NOAA E)139231983-022A2020 Aug 10785 x 807 km, 100.8 min, 98°.6
04:56NOAA 10 (NOAA G)169691986-073A2020 Aug 10789 x 807 km, 100.8 min, 98°.5
05:31NOAA 6 (NOAA A)114161979-057A2020 Aug 10771 x 788 km, 100.4 min, 98°.7
05:42USA 109 (DMSP 5D-2 F-13)235331995-015A2020 Aug 10834 x 845 km, 101.7 min, 98°.8
05:59SMAP (Soil Moisture Active Passive)403762015-003A2020 Aug 10681 x 683 km, 98.4 min, 98°.1
06:09NOAA 12 (NOAA D)212631991-032A2020 Aug 10795 x 816 km, 101.0 min, 98°.5
06:09QuakeSat278452003-031F2020 Aug 10812 x 823 km, 101.2 min, 98°.7
06:10Coriolis276402003-001A2020 Aug 10819 x 838 km, 101.5 min, 98°.7
06:14USA 249 (DMSP 5D-3 F-19)396302014-015A2020 Aug 10838 x 853 km, 101.8 min, 98°.8
06:26COBE203221989-089A2020 Aug 10871 x 882 km, 102.5 min, 98°.9
06:38USA 191 (DMSP 5D-3 F-17)295222006-050A2020 Aug 10838 x 853 km, 101.8 min, 98°.8
06:49USA 73 (DMSP 5D-2 F-11)217981991-082A2020 Aug 10828 x 845 km, 101.7 min, 98°.9
07:15NOAA 15 (NOAA K)253381998-030A2020 Aug 10797 x 813 km, 101.0 min, 98°.7
07:58WISE (Wide Field IR Explorer)361192009-071A2020 Aug 10473 x 477 km, 94.1 min, 97°.3
08:03USA 186 (KH- 11 Block-4 F1?/Crystal)288882005-042A2020 Aug 6262 x 437 km, 91.5 min, 96°.9
09:06ESSA 937641969-016A2020 Aug 101426 x 1505 km, 115.2 min, 101°.6
09:18Global-1 (Pathfinder 1)417872016-059E2020 Aug 10659 x 703 km, 98.4 min, 98°.0
09:24TIROS-N110601978-096A2020 Aug 10824 x 838 km, 101.5 min, 98°.7
09:32CEPE (Cylindrical Electrostatic Probe Experiment)47941970-106B2020 Aug 101422 x 1480 km, 114.9 min, 101°.6
09:35Oscar 5 (Australis Oscar 5)43211970-008B2020 Aug 101433 x 1478 km, 115.0 min, 101°.6
09:39USA 245 (KH- 11 Block-4 F3?/Crystal)392322013-043A2020 Aug 9270 x 1011 km, 97.5 min, 97°.9
09:40Landsat 7256821999-020A2020 Aug 10701 x 703 km, 98.8 min, 98°.1
10:05NOAA 1 (ITOS A)47931970-106A2020 Aug 101423 x 1473 km, 114.8 min, 101°.7
10:06ITOS 143201970-008A2020 Aug 101433 x 1479 km, 115.0 min, 101°.7
10:07NOAA 16 (NOAA L)265362000-055A2020 Aug 10841 x 855 km, 101.9 min, 98°.7
10:10Skysat 7 (Skysat C5)417722016-058C2020 Aug 10492 x 495 km, 94.5 min, 97°.4
10:12Landsat 8 (Landsat Data Continuity Mission)390842013-008A2020 Aug 10701 x 704 km, 98.8 min, 98°.2
10:13Skysat 6 (Skysat C4)417712016-058B2020 Aug 10451 x 454 km, 93.6 min, 97°.2
10:14Skysat 4 (Skysat C2)417732016-058D2020 Aug 10452 x 454 km, 93.6 min, 97°.2
10:14Skysat 5 (Skysat C3)417742016-058E2020 Aug 10451 x 455 km, 93.6 min, 97°.2
10:16Skysat 14 (Skysat C12)437972018-099AR2020 Aug 10450 x 454 km, 93.6 min, 97°.2
10:17SkySat 15 (Skysat C13)438022018-099AW2020 Aug 10464 x 470 km, 93.9 min, 97°.2
10:19Global-2438122018-099BG2020 Aug 10571 x 590 km, 96.3 min, 97°.7
10:22STPSat-5437622018-099E2020 Aug 10569 x 589 km, 96.3 min, 97°.7
10:24WorldView 2359462009-055A2020 Aug 10765 x 767 km, 100.2 min, 98°.5
10:29Geoeye 1333312008-042A2020 Aug 10674 x 685 km, 98.3 min, 98°.1
10:30Terra (EOS AM-1)259941999-068A2020 Aug 10702 x 703 km, 98.8 min, 98°.2
10:34Worldview 3401152014-048A2020 Aug 10612 x 615 km, 97.0 min, 97°.8
10:43LKW-2 (Land Survey Satellite 2)430802017-084A2020 Aug 10489 x 502 km, 94.5 min, 97°.4
10:43Skysat 3 (Skysat C1)416012016-040C2020 Aug 10450 x 455 km, 93.6 min, 97°.2
10:49Skysat 1394182013-066C2020 Aug 10555 x 585 km, 96.1 min, 97°.6
12:02USA 205 (STSS-ATRR)349032009-023A2020 Aug 7869 x 875 km, 102.4 min, 98°.9
12:58USA 224 (KH- 11 Block-4 F2?/Crystal)373482011-002A2020 Aug 1259 x 1024 km, 97.6 min, 97°.9
13:07Skysat 11 (Skysat C9)429892017-068C2020 Aug 10449 x 453 km, 93.6 min, 97°.2
13:08OrbView-2248831997-037A2020 Aug 10779 x 781 km, 100.4 min, 98°.6
13:09Skysat 12 (Skysat C10)429882017-068B2020 Aug 10450 x 453 km, 93.6 min, 97°.2
13:10Skysat 10 (Skysat C8)429902017-068D2020 Aug 10450 x 452 km, 93.6 min, 97°.2
13:10Skysat 13 (Skysat C11)429872017-068A2020 Aug 10445 x 457 km, 93.6 min, 97°.2
13:10Skysat 9 (Skysat C7)429912017-068E2020 Aug 10450 x 452 km, 93.6 min, 97°.2
13:11Skysat 8 (Skysat C6)429922017-068F2020 Aug 10449 x 453 km, 93.6 min, 97°.2
13:31WorldView 1320602007-041A2020 Aug 10491 x 494 km, 94.5 min, 97°.4
13:45ACRIMSat (Active Cavity Radiometer Irradiance Monitor Satellite)260331999-070B2020 Aug 10666 x 705 km, 98.5 min, 98°.1
13:52TIROS 1014301965-051A2020 Aug 10717 x 798 km, 100.0 min, 98°.3
13:55TOMS-EP239401996-037A2020 Aug 10689 x 728 km, 98.9 min, 98°.2
17:42IRAS137771983-004A2020 Aug 10878 x 906 km, 102.8 min, 99°.0
17:42IRIS (Interface Region Imaging Spectrometer)391972013-033A2020 Aug 10613 x 654 km, 97.4 min, 98°.0
17:56DMSP 5D-2 F-6 (Defense Meteorological Satellite Program)137361982-118A2020 Aug 10788 x 800 km, 100.7 min, 98°.6
18:03USA 26 (DMSP 5D-2 F-8)181231987-053A2020 Aug 10820 x 839 km, 101.5 min, 98°.7
18:12TRACE252801998-020A2020 Aug 10509 x 542 km, 95.1 min, 97°.5
18:27AMS 3 (DMSP 5D-1 F-3)108201978-042A2020 Aug 10768 x 780 km, 100.3 min, 98°.5
18:33DMSP 5C F-2 (Defense Meteorological Satellite Program)78161975-043A2020 Aug 10776 x 850 km, 101.1 min, 98°.8
18:45DMSP 5B F-3 (Defense Meteorological Satellite Program)62751972-089A2020 Aug 10772 x 825 km, 100.8 min, 98°.5
18:53DMSP 5C F-1 (Defense Meteorological Satellite Program)74111974-063A2020 Aug 10768 x 829 km, 100.8 min, 98°.7
19:50DMSP 2 F-3 (DAPP 15/Defense Meteorological Satellite Program)21251966-026A2020 Aug 10593 x 815 km, 98.9 min, 98°.1
20:15DMSP 5A F-3 (Defense Meteorological Satellite Program)40471969-062A2020 Aug 10764 x 829 km, 100.8 min, 98°.7
20:17USA 216 (SBSS)371682010-048A2020 Aug 10623 x 626 km, 97.2 min, 97°.9
20:25DMSP 5A F-1 (Defense Meteorological Satellite Program)32661968-042A2020 Aug 10804 x 879 km, 101.7 min, 98°.8
20:34DMSP 4A F-9 (Defense Meteorological Satellite Program)29201967-080A2020 Aug 10816 x 871 km, 101.8 min, 98°.9
22:46Nimbus 6 (Nimbus F)79241975-052A2020 Aug 101101 x 1112 km, 107.4 min, 100°.1
23:12SECOR 13 (EGRS 13)38911969-037B2020 Aug 101068 x 1129 km, 107.2 min, 99°.9
23:17TOPO 143631970-025B2020 Aug 101083 x 1086 km, 106.9 min, 100°.0
23:22Nimbus 3 (Nimbus B2)38901969-037A2020 Aug 101070 x 1130 km, 107.3 min, 99°.9
23:23Nimbus 5 (Nimbus E)63051972-097A2020 Aug 101088 x 1100 km, 107.1 min, 99°.9
23:40Nimbus 4 (Nimbus D)43621970-025A2020 Aug 101086 x 1098 km, 107.1 min, 100°.0

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 Aug 10
SpaceTrack - updated: 2020 Aug 11

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