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Orbits


Tyneside, UK
2024 Feb 28
Wednesday, Day 59

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Primary source of unclassified orbital elements

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

This a list of satellites in sun-synchronous orbit shown in the order they lie around the Earth. 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.

Cubesats less than 6U in size are excluded from the list because the vast majority reached space by hitch hiking and their final orbit was not important. Listing them would create an unnecessarily long page.

The menu on the left leads to some, hopefully useful, sub-lists of the satellites on this page.

Updated: 2024 Feb 28, 03:48 UTC

LTDN Satellite Cat
no
Desig- nation Orbit
Epoch
Orbit
00:00ESSA 220911966-016A2024 Feb 271354 x 1415 km, 113.4 min, 101°.3
00:01Nimbus 4 (Nimbus D)43621970-025A2024 Feb 271087 x 1097 km, 107.1 min, 100°.0
01:25NOAA 20 (JPSS, Joint Polar Satellite System 1)430132017-073A2024 Feb 27826 x 828 km, 101.4 min, 98°.7
02:07ESSA 836151968-114A2024 Feb 271414 x 1464 km, 114.6 min, 101°.6
02:08Fengyun 3A (Fengyun 3-01)329582008-026A2024 Feb 27822 x 835 km, 101.5 min, 98°.6
02:09NOAA 17274532002-032A2024 Feb 27799 x 814 km, 101.0 min, 98°.8
02:36AMS 4 (DMSP 5D-1 F-4)113891979-050A2024 Feb 27787 x 806 km, 100.8 min, 98°.5
03:01Meteor M-1358652009-049A2024 Feb 27815 x 818 km, 101.2 min, 98°.6
03:41NOAA 5 (ITOS H)90571976-077A2024 Feb 271508 x 1524 km, 116.3 min, 102°.2
03:54USA 210 (DMSP 5D-3 F-18)359512009-057A2024 Feb 27837 x 854 km, 101.8 min, 98°.8
04:28Fengyun 1B (Fengyun 1-02)207881990-081A2024 Feb 27872 x 896 km, 102.6 min, 98°.9
04:34NOAA 10169691986-073A2024 Feb 27789 x 805 km, 100.8 min, 98°.6
05:01NOAA 12212631991-032A2024 Feb 27795 x 814 km, 101.0 min, 98°.6
05:37Fengyun 3E (Fengyun 3-05)490082021-062A2024 Feb 27825 x 828 km, 101.4 min, 98°.7
05:41USA 249 (DMSP 5D-3 F-19)396302014-015A2024 Feb 27836 x 853 km, 101.8 min, 98°.8
06:08USA 109 (DMSP 5D-2 F-13)235331995-015A2024 Feb 27832 x 843 km, 101.7 min, 98°.8
06:18USA 191 (DMSP 5D-3 F-17)295222006-050A2024 Feb 27838 x 851 km, 101.8 min, 98°.7
06:52NOAA 6114161979-057A2024 Feb 27770 x 784 km, 100.4 min, 98°.6
07:24NOAA 15253381998-030A2024 Feb 27797 x 810 km, 100.9 min, 98°.6
07:33USA 73 (DMSP 5D-2 F-11)217981991-082A2024 Feb 27826 x 845 km, 101.6 min, 98°.8
08:27USA 131 (DMSP 5D-2 F-14)247531997-012A2024 Feb 27832 x 844 km, 101.7 min, 98°.9
09:10USA 106 (DMSP 5D-2 S-12)232331994-057A2024 Feb 27831 x 848 km, 101.7 min, 98°.8
09:25MetOp-B387712012-049A2024 Feb 27820 x 821 km, 101.3 min, 98°.6
09:29MetOp-C436892018-087A2024 Feb 27818 x 823 km, 101.3 min, 98°.7
10:38NOAA 18286542005-018A2024 Feb 27838 x 859 km, 101.9 min, 98°.9
13:12TIROS 1014301965-051A2024 Feb 27715 x 797 km, 99.9 min, 98°.4
14:14DMSP 5A F-2 (Defense Meteorological Satellite Program)35101968-092A2024 Feb 27779 x 820 km, 100.9 min, 98°.5
17:13DMSP 5B F-3 (Defense Meteorological Satellite Program)62751972-089A2024 Feb 27771 x 821 km, 100.8 min, 98°.5
17:55DMSP 5D-2 F-6 (Defense Meteorological Satellite Program)137361982-118A2024 Feb 27788 x 797 km, 100.7 min, 98°.6
17:55USA 26 (DMSP 5D-2 F-8)181231987-053A2024 Feb 27818 x 838 km, 101.5 min, 98°.7
18:34AMS 3 (DMSP 5D-1 F-3)108201978-042A2024 Feb 27764 x 777 km, 100.3 min, 98°.5
19:14DMSP 5C F-1 (Defense Meteorological Satellite Program)74111974-063A2024 Feb 27767 x 826 km, 100.8 min, 98°.6
19:16DMSP 5C F-2 (Defense Meteorological Satellite Program)78161975-043A2024 Feb 27772 x 849 km, 101.1 min, 98°.7
20:28DMSP 4A F-9 (Defense Meteorological Satellite Program)29201967-080A2024 Feb 27816 x 869 km, 101.8 min, 98°.7
20:34DMSP 5A F-3 (Defense Meteorological Satellite Program)40471969-062A2024 Feb 27764 x 826 km, 100.8 min, 98°.5
22:36Nimbus 3 (Nimbus B2)38901969-037A2024 Feb 271070 x 1129 km, 107.3 min, 99°.8
23:13Nimbus 5 (Nimbus E)63051972-097A2024 Feb 271087 x 1100 km, 107.1 min, 99°.9
23:28Nimbus 6 (Nimbus F)79241975-052A2024 Feb 271100 x 1113 km, 107.4 min, 100°.0

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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