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 Dec 18 18:57 | 2025 Dec 12 07:03:36 | 99.4099 | 0.00247 | 22.9733 | 148.8565 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 17 18:58 | 2025 Dec 12 07:03:36 | 99.4099 | 0.00247 | 22.9733 | 148.8565 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 16 18:57 | 2025 Dec 12 07:03:36 | 99.4099 | 0.00247 | 22.9733 | 148.8565 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 15 18:58 | 2025 Dec 12 07:03:36 | 99.4099 | 0.00247 | 22.9733 | 148.8565 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 14 18:56 | 2025 Dec 12 07:03:36 | 99.4099 | 0.00247 | 22.9733 | 148.8565 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 13 18:56 | 2025 Dec 12 07:03:36 | 99.4099 | 0.00247 | 22.9733 | 148.8565 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 12 18:57 | 2025 Dec 12 07:03:36 | 99.4099 | 0.00247 | 22.9733 | 148.8565 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 11 18:56 | 2025 Dec 07 06:48:21 | 99.4092 | 0.00246 | 22.6311 | 162.3938 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 10 18:56 | 2025 Dec 07 06:48:21 | 99.4092 | 0.00246 | 22.6311 | 162.3938 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 09 18:56 | 2025 Dec 07 06:48:21 | 99.4092 | 0.00246 | 22.6311 | 162.3938 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 08 18:56 | 2025 Dec 07 06:48:21 | 99.4092 | 0.00246 | 22.6311 | 162.3938 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 07 18:56 | 2025 Dec 07 06:48:21 | 99.4092 | 0.00246 | 22.6311 | 162.3938 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 06 18:56 | 2025 Dec 02 12:11:35 | 99.4092 | 0.00245 | 22.3050 | 175.5615 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 05 18:57 | 2025 Dec 02 12:11:35 | 99.4092 | 0.00245 | 22.3050 | 175.5615 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 04 18:57 | 2025 Dec 02 12:11:35 | 99.4092 | 0.00245 | 22.3050 | 175.5615 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 03 18:56 | 2025 Dec 02 12:11:35 | 99.4092 | 0.00245 | 22.3050 | 175.5615 | 223.0263 | 13.97840 | 5.743 |
| 2025 Dec 02 18:56 | 2025 Dec 02 12:11:35 | 99.4092 | 0.00245 | 22.3050 | 175.5615 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 30 18:57 | 2025 Nov 25 12:05:22 | 99.4097 | 0.00243 | 21.8268 | 195.0528 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 29 18:56 | 2025 Nov 25 12:05:22 | 99.4097 | 0.00243 | 21.8268 | 195.0528 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 28 18:57 | 2025 Nov 25 12:05:22 | 99.4097 | 0.00243 | 21.8268 | 195.0528 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 27 18:57 | 2025 Nov 25 12:05:22 | 99.4097 | 0.00243 | 21.8268 | 195.0528 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 26 18:57 | 2025 Nov 25 12:05:22 | 99.4097 | 0.00243 | 21.8268 | 195.0528 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 25 18:57 | 2025 Nov 25 12:05:22 | 99.4097 | 0.00243 | 21.8268 | 195.0528 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 24 18:56 | 2025 Nov 20 05:57:05 | 99.4091 | 0.00240 | 21.4679 | 209.7095 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 23 18:57 | 2025 Nov 20 05:57:05 | 99.4091 | 0.00240 | 21.4679 | 209.7095 | 223.0263 | 13.97840 | 5.743 |
| 2025 Nov 21 18:57 | 2025 Nov 20 05:57:05 | 99.4091 | 0.00240 | 21.4679 | 209.7095 | 223.0263 | 13.97840 | 5.743 |