Zarya - Soviet, Russian and International Spaceflight
carousel image
 
Orbits


Tyneside, UK
2020 Apr 3
Friday, Day 94

Maintained by:






Lists Available:












Other orbits:





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
00:54Amsat Echo (AO-51)283752004-025K2020 Apr 2692 x 812 km, 99.9 min, 98°.4
01:00ESSA 220911966-016A2020 Apr 11354 x 1414 km, 113.4 min, 101°.2
01:24Suomi NPP (Suomi National Polar-orbiting Partnership)378492011-061A2020 Apr 2826 x 828 km, 101.4 min, 98°.7
01:25NOAA 20 (JPSS 1)430132017-073A2020 Apr 2826 x 828 km, 101.4 min, 98°.7
01:28WESTPAC253981998-043E2020 Apr 1816 x 816 km, 101.2 min, 98°.7
01:35Aqua (EOS PM-1)274242002-022A2020 Apr 2702 x 703 km, 98.8 min, 98°.2
01:36OCO 2 (Orbiting Carbon Observatory)400592014-035A2020 Apr 2702 x 704 km, 98.8 min, 98°.2
01:44Aura (EOS Chem-1)283762004-026A2020 Apr 2702 x 703 km, 98.8 min, 98°.2
01:47Fedsat275982002-056B2020 Apr 2789 x 803 km, 100.8 min, 98°.6
01:58Calipso (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations)291082006-016B2020 Apr 2684 x 686 km, 98.5 min, 98°.2
01:59Cloudsat291072006-016A2020 Apr 2685 x 686 km, 98.5 min, 98°.2
02:01NOAA 17 (NOAA M)274532002-032A2020 Apr 2799 x 818 km, 101.0 min, 98°.6
02:30Oscar 8 (AO-8)107031978-026B2020 Apr 2891 x 902 km, 102.9 min, 99°.0
03:27NOAA 5 (ITOS H)90571976-077A2020 Apr 21508 x 1524 km, 116.3 min, 102°.0
03:28NOAA 2 (ITOS D)62351972-082A2020 Apr 11448 x 1455 km, 114.9 min, 101°.8
03:29NOAA 4 (ITOS G)75291974-089A2020 Apr 21445 x 1458 km, 114.9 min, 101°.8
03:29Oscar 7 (AO-7)75301974-089B2020 Apr 11440 x 1459 km, 114.9 min, 101°.8
03:35NOAA 3 (ITOS F)69201973-086A2020 Apr 11500 x 1510 km, 116.1 min, 102°.1
03:39Oscar 6 (AO-6)62361972-082B2020 Apr 21448 x 1455 km, 114.9 min, 101°.9
04:06USA 172 (DMSP 5D-3 F-16)280542003-048A2020 Apr 2841 x 853 km, 101.9 min, 98°.9
04:33NOAA 8 (NOAA E)139231983-022A2020 Apr 2785 x 808 km, 100.8 min, 98°.6
05:02NOAA 10 (NOAA G)169691986-073A2020 Apr 2789 x 807 km, 100.8 min, 98°.5
05:24NOAA 6 (NOAA A)114161979-057A2020 Apr 2772 x 788 km, 100.4 min, 98°.7
05:40USA 109 (DMSP 5D-2 F-13)235331995-015A2020 Apr 1834 x 845 km, 101.7 min, 98°.8
05:59SMAP (Soil Moisture Active Passive)403762015-003A2020 Apr 2682 x 683 km, 98.4 min, 98°.1
06:07Microsat 2A (Tintin A)432162018-020B2020 Apr 2492 x 513 km, 94.7 min, 97°.5
06:09QuakeSat278452003-031F2020 Apr 2812 x 823 km, 101.2 min, 98°.7
06:10Microsat 2B (Tintin B)432172018-020C2020 Apr 2492 x 511 km, 94.6 min, 97°.5
06:11Coriolis276402003-001A2020 Apr 2819 x 838 km, 101.5 min, 98°.7
06:17NOAA 12 (NOAA D)212631991-032A2020 Apr 2796 x 815 km, 101.0 min, 98°.5
06:18USA 249 (DMSP 5D-3 F-19)396302014-015A2020 Apr 2838 x 853 km, 101.8 min, 98°.8
06:28COBE203221989-089A2020 Apr 2871 x 883 km, 102.5 min, 98°.9
06:38USA 191 (DMSP 5D-3 F-17)295222006-050A2020 Apr 2838 x 853 km, 101.8 min, 98°.8
06:41USA 73 (DMSP 5D-2 F-11)217981991-082A2020 Apr 2829 x 845 km, 101.7 min, 98°.9
07:10NOAA 15 (NOAA K)253381998-030A2020 Apr 2797 x 813 km, 101.0 min, 98°.7
07:57WISE (Wide Field IR Explorer)361192009-071A2020 Apr 2475 x 477 km, 94.1 min, 97°.3
08:03USA 186 (KH- 11 Block-4 F1?/Crystal)288882005-042A2020 Mar 31266 x 454 km, 91.7 min, 96°.9
09:12ESSA 937641969-016A2020 Apr 21425 x 1505 km, 115.2 min, 101°.6
09:24Pathfinder 1417872016-059E2020 Apr 2660 x 702 km, 98.4 min, 98°.0
09:24TIROS-N110601978-096A2020 Apr 2824 x 838 km, 101.5 min, 98°.7
09:38CEPE (Cylindrical Electrostatic Probe Experiment)47941970-106B2020 Apr 21422 x 1480 km, 114.9 min, 101°.6
09:38USA 245 (KH- 11 Block-4 F3?/Crystal)392322013-043A2020 Mar 28269 x 1022 km, 97.6 min, 97°.9
09:41Oscar 5 (Australis Oscar 5)43211970-008B2020 Apr 11434 x 1477 km, 115.0 min, 101°.6
09:48Landsat 7256821999-020A2020 Apr 2701 x 704 km, 98.8 min, 98°.1
10:06NOAA 1 (ITOS A)47931970-106A2020 Apr 11423 x 1473 km, 114.8 min, 101°.7
10:08ITOS 143201970-008A2020 Apr 11434 x 1478 km, 115.0 min, 101°.7
10:12Landsat 8 (Landsat Data Continuity Mission)390842013-008A2020 Apr 2701 x 704 km, 98.8 min, 98°.2
10:12NOAA 16 (NOAA L)265362000-055A2020 Apr 2841 x 855 km, 101.9 min, 98°.7
10:13Skysat 6 (Skysat C5)417722016-058C2020 Apr 2493 x 496 km, 94.5 min, 97°.4
10:14Skysat 7 (Skysat C4)417712016-058B2020 Apr 2464 x 466 km, 93.9 min, 97°.2
10:16Skysat 4 (Skysat C2)417732016-058D2020 Apr 2451 x 454 km, 93.6 min, 97°.2
10:16Skysat 5 (Skysat C3)417742016-058E2020 Apr 2464 x 465 km, 93.9 min, 97°.2
10:22STPSat-5437622018-099E2020 Apr 2568 x 590 km, 96.3 min, 97°.7
10:28WorldView 2359462009-055A2020 Apr 2765 x 767 km, 100.2 min, 98°.4
10:30Geoeye 1333312008-042A2020 Apr 2674 x 685 km, 98.3 min, 98°.1
10:30Terra (EOS AM-1)259941999-068A2020 Apr 2702 x 703 km, 98.8 min, 98°.2
10:39Worldview 3401152014-048A2020 Apr 2612 x 614 km, 97.0 min, 97°.8
10:44LKW-2 (Land Survey Satellite 2)430802017-084A2020 Apr 2490 x 501 km, 94.5 min, 97°.4
10:45Skysat 3 (Skysat Gen 2-1)416012016-040C2020 Apr 2470 x 476 km, 94.1 min, 97°.3
10:53Skysat 1394182013-066C2020 Apr 1553 x 587 km, 96.1 min, 97°.6
12:01USA 205 (STSS-ATRR)349032009-023A2019 Sep 27866 x 876 km, 102.4 min, 98°.9
12:59USA 224 (KH- 11 Block-4 F2?/Crystal)373482011-002A2020 Feb 22262 x 1020 km, 97.5 min, 97°.9
13:03OrbView-2248831997-037A2020 Apr 1779 x 781 km, 100.5 min, 98°.6
13:07Skysat C9429892017-068C2020 Apr 2451 x 453 km, 93.6 min, 97°.2
13:09Skysat C10429882017-068B2020 Apr 2448 x 455 km, 93.6 min, 97°.2
13:10Skysat C11429872017-068A2020 Apr 2446 x 458 km, 93.6 min, 97°.2
13:10Skysat C7429912017-068E2020 Apr 1451 x 453 km, 93.6 min, 97°.2
13:10Skysat C8429902017-068D2020 Apr 2450 x 454 km, 93.6 min, 97°.2
13:11Skysat C6429922017-068F2020 Apr 1451 x 453 km, 93.6 min, 97°.2
13:31WorldView 1320602007-041A2020 Apr 2491 x 494 km, 94.5 min, 97°.4
13:49ACRIMSAT260331999-070B2020 Apr 2666 x 706 km, 98.5 min, 98°.1
13:55TOMS-EP239401996-037A2020 Apr 2688 x 728 km, 98.9 min, 98°.2
17:40IRIS (Interface Region Imaging Spectrometer)391972013-033A2020 Apr 2613 x 654 km, 97.4 min, 98°.0
17:46IRAS137771983-004A2020 Apr 2877 x 908 km, 102.8 min, 99°.0
17:56DMSP 5D-2 F-6137361982-118A2020 Apr 2788 x 800 km, 100.7 min, 98°.6
18:04USA 26 (DMSP 5D-2 F-8)181231987-053A2020 Apr 2820 x 839 km, 101.5 min, 98°.7
18:15TRACE252801998-020A2020 Apr 2509 x 543 km, 95.2 min, 97°.5
18:25AMS 3 (DMSP 5D-1 F-3)108201978-042A2020 Apr 2768 x 780 km, 100.3 min, 98°.5
18:26DMSP 5C F-278161975-043A2020 Apr 1776 x 850 km, 101.1 min, 98°.8
18:47DMSP 5C F-174111974-063A2020 Apr 2769 x 829 km, 100.8 min, 98°.7
18:54DMSP 5B F-362751972-089A2020 Apr 2773 x 825 km, 100.8 min, 98°.5
19:59DMSP 2 F-3 (DAPP 15)21251966-026A2020 Apr 2593 x 815 km, 98.9 min, 98°.1
20:16USA 216 (SBSS)371682010-048A2020 Apr 2623 x 626 km, 97.2 min, 97°.9
20:25DMSP 5A F-132661968-042A2020 Apr 2804 x 879 km, 101.7 min, 98°.8
20:29DMSP 4A F-929201967-080A2020 Apr 1816 x 871 km, 101.8 min, 98°.9
20:42NOOR 1A448272019-084D2020 Apr 2337 x 388 km, 91.8 min, 97°.0
20:50USA 29 (DMSP 5D-2 F-9)188221988-006A2020 Apr 1797 x 805 km, 100.9 min, 98°.5
22:40Nimbus 6 (Nimbus F)79241975-052A2020 Apr 21101 x 1112 km, 107.4 min, 100°.1
23:13TOPO 143631970-025B2020 Apr 21083 x 1087 km, 106.9 min, 100°.0
23:15SECOR 13 (EGRS 13)38911969-037B2020 Apr 21069 x 1129 km, 107.2 min, 99°.9
23:22Nimbus 5 (Nimbus E)63051972-097A2020 Apr 21088 x 1100 km, 107.1 min, 99°.9
23:24Nimbus 3 (Nimbus B2)38901969-037A2020 Apr 11070 x 1130 km, 107.3 min, 99°.9
23:37Nimbus 4 (Nimbus D)43621970-025A2020 Apr 21086 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 Apr 1
SpaceTrack - updated: 2020 Apr 3

Copyright © Robert Christy, all rights reserved
Reproduction of this web page or any of its content without permission from zarya.info is prohibited