Orbital elements of IRS-1B
| Launched | 28 August 1991 |
| Flight ended | – |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | India |
| NORAD ID | 21688 |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| 2025 Aug 20 17:56 | 2025 Aug 18 13:42:22 | 99.4035 | 0.00254 | 15.0710 | 105.0895 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 19 17:56 | 2025 Aug 18 13:42:22 | 99.4035 | 0.00254 | 15.0710 | 105.0895 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 18 17:56 | 2025 Aug 18 13:42:22 | 99.4035 | 0.00254 | 15.0710 | 105.0895 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 16 17:56 | 2025 Aug 12 10:15:22 | 99.4026 | 0.00252 | 14.6517 | 121.5103 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 15 17:57 | 2025 Aug 12 10:15:22 | 99.4026 | 0.00252 | 14.6517 | 121.5103 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 14 17:56 | 2025 Aug 12 10:15:22 | 99.4026 | 0.00252 | 14.6517 | 121.5103 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 13 17:58 | 2025 Aug 12 10:15:22 | 99.4026 | 0.00252 | 14.6517 | 121.5103 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 12 17:56 | 2025 Aug 12 10:15:22 | 99.4026 | 0.00252 | 14.6517 | 121.5103 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 11 17:56 | 2025 Aug 06 23:08:38 | 99.4025 | 0.00249 | 14.2788 | 136.0411 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 10 17:57 | 2025 Aug 06 23:08:38 | 99.4025 | 0.00249 | 14.2788 | 136.0411 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 09 17:56 | 2025 Aug 06 23:08:38 | 99.4025 | 0.00249 | 14.2788 | 136.0411 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 08 17:56 | 2025 Aug 06 23:08:38 | 99.4025 | 0.00249 | 14.2788 | 136.0411 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 07 17:56 | 2025 Aug 06 23:08:38 | 99.4025 | 0.00249 | 14.2788 | 136.0411 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 05 17:56 | 2025 Aug 01 12:50:16 | 99.4025 | 0.00247 | 13.9082 | 150.1930 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 04 17:56 | 2025 Aug 01 12:50:16 | 99.4025 | 0.00247 | 13.9082 | 150.1930 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 03 17:56 | 2025 Aug 01 12:50:16 | 99.4025 | 0.00247 | 13.9082 | 150.1930 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 02 17:56 | 2025 Aug 01 12:50:16 | 99.4025 | 0.00247 | 13.9082 | 150.1930 | 4.1681 | 13.97804 | 5.743 |
| 2025 Aug 01 17:56 | 2025 Aug 01 12:50:16 | 99.4025 | 0.00247 | 13.9082 | 150.1930 | 4.1681 | 13.97804 | 5.743 |
| 2025 Jul 31 17:56 | 2025 Jul 25 22:21:57 | 99.4017 | 0.00244 | 13.4575 | 167.3869 | 4.1681 | 13.97804 | 5.743 |
| 2025 Jul 29 17:56 | 2025 Jul 25 22:21:57 | 99.4017 | 0.00244 | 13.4575 | 167.3869 | 4.1681 | 13.97804 | 5.743 |
| 2025 Jul 28 17:58 | 2025 Jul 25 22:21:57 | 99.4017 | 0.00244 | 13.4575 | 167.3869 | 4.1681 | 13.97804 | 5.743 |
| 2025 Jul 26 17:56 | 2025 Jul 25 22:21:57 | 99.4017 | 0.00244 | 13.4575 | 167.3869 | 4.1681 | 13.97804 | 5.743 |
| 2025 Jul 25 17:56 | 2025 Jul 20 12:14:17 | 99.4010 | 0.00241 | 13.0874 | 181.8498 | 4.1681 | 13.97804 | 5.743 |