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Orbital elements based on amateur observations | Sun-synchronous Satellites - India
This a list of satellites in sun-synchronous orbit operated by India 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.
Updated: 2023 Jan 28, 06:48 UTC
LTDN |
Satellite |
Cat no |
Desig- nation |
Orbit Epoch |
Orbit |
03:10 | IMS 1 (Indian Mini Satellite) | 32786 | 2008-021D | 2023 Jan 27 | 599 x 613 km, 96.8 min, 97°.8 | 06:00 | EOS 04 (Earth Observation Satellite 4) | 51656 | 2022-013A | 2023 Jan 27 | 527 x 529 km, 95.2 min, 97°.5 | 06:10 | Ispiresat 1 | 51657 | 2022-013B | 2023 Jan 27 | 510 x 527 km, 95.0 min, 97°.6 | 06:12 | INS 2D | 51658 | 2022-013C | 2023 Jan 27 | 504 x 521 km, 94.9 min, 97°.6 | 06:20 | RISat 1 (Radar Imaging Satellite) | 38248 | 2012-017A | 2023 Jan 27 | 522 x 527 km, 95.1 min, 97°.5 | 08:28 | ScatSat 1 (Scatterometer Satellite 1) | 41790 | 2016-059H | 2023 Jan 27 | 719 x 725 km, 99.2 min, 98°.3 | 09:27 | INS 1B (Indian NanoSatellite 1B) | 41954 | 2017-008G | 2023 Jan 27 | 441 x 450 km, 93.5 min, 97°.2 | 09:28 | INS 1A (Indian NanoSatellite 1A) | 41949 | 2017-008B | 2023 Jan 27 | 439 x 448 km, 93.5 min, 97°.2 | 09:30 | Cartosat 2D | 41948 | 2017-008A | 2023 Jan 27 | 504 x 512 km, 94.8 min, 97°.4 | 09:30 | Cartosat 3 | 44804 | 2019-081A | 2023 Jan 28 | 500 x 516 km, 94.8 min, 97°.4 | 09:31 | Cartosat 2F | 43111 | 2018-004A | 2023 Jan 27 | 505 x 511 km, 94.8 min, 97°.4 | 09:32 | Cartosat 2E | 42767 | 2017-036C | 2023 Jan 27 | 502 x 514 km, 94.8 min, 97°.4 | 09:33 | Cartosat 2C | 41599 | 2016-040A | 2023 Jan 27 | 499 x 517 km, 94.8 min, 97°.5 | 09:34 | Cartosat 2A | 32783 | 2008-021A | 2023 Jan 27 | 624 x 643 km, 97.4 min, 97°.9 | 09:34 | Cartosat 2B | 36795 | 2010-035A | 2023 Jan 27 | 625 x 642 km, 97.4 min, 97°.9 | 09:34 | EMISat (Electromagnetic Intelligence-gathering Satellite) | 44078 | 2019-018A | 2023 Jan 28 | 733 x 759 km, 99.7 min, 98°.4 | 09:56 | HySIS | 43719 | 2018-096A | 2023 Jan 27 | 632 x 636 km, 97.4 min, 97°.9 | 10:01 | Resourcesat 1 (IRS P6) | 28051 | 2003-046A | 2023 Jan 28 | 735 x 820 km, 100.4 min, 98°.4 | 10:11 | Carbonite-2 | 43115 | 2018-004E | 2023 Jan 27 | 478 x 489 km, 94.3 min, 97°.3 | 10:16 | IRS 1A | 18960 | 1988-021A | 2023 Jan 27 | 894 x 915 km, 103.1 min, 99°.0 | 10:16 | Resourcesat 2 | 37387 | 2011-015A | 2023 Jan 27 | 816 x 823 km, 101.3 min, 98°.6 | 10:33 | Resourcesat 2A | 41877 | 2016-074A | 2023 Jan 27 | 818 x 821 km, 101.3 min, 98°.7 | 10:59 | Shakuntala | 52173 | 2022-033S | 2023 Jan 27 | 467 x 481 km, 94.1 min, 97°.4 | 11:59 | EOS 06 (Earth Observation Satellite 6) | 54361 | 2022-158A | 2023 Jan 27 | 734 x 737 km, 99.5 min, 98°.4 | 12:01 | INS 2B (India-Bhutan Sat) | 54365 | 2022-158E | 2023 Jan 27 | 493 x 510 km, 94.7 min, 97°.4 | 12:01 | Anand | 54366 | 2022-158F | 2023 Jan 27 | 494 x 510 km, 94.7 min, 97°.4 | 17:53 | SARAL (Satellite with ARgos and ALtiKa) | 39086 | 2013-009A | 2023 Jan 28 | 784 x 786 km, 100.6 min, 98°.5 |
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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