Orbital elements of ASTRA 1B
| Launched | 1 March 1991 |
| Flight ended | – |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | SES |
| NORAD ID | 21139 |
| 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 Sep 15 17:56 | 2025 Sep 15 04:20:24 | 13.0255 | 0.00063 | 1.6131 | 23.2425 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 12 17:57 | 2025 Sep 02 20:45:25 | 13.0101 | 0.00068 | 1.6189 | 25.3157 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 11 17:57 | 2025 Sep 02 20:45:25 | 13.0101 | 0.00068 | 1.6189 | 25.3157 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 10 17:56 | 2025 Sep 02 20:45:25 | 13.0101 | 0.00068 | 1.6189 | 25.3157 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 08 17:57 | 2025 Sep 02 20:45:25 | 13.0101 | 0.00068 | 1.6189 | 25.3157 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 07 17:56 | 2025 Sep 02 20:45:25 | 13.0101 | 0.00068 | 1.6189 | 25.3157 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 06 20:41 | 2025 Sep 02 20:45:25 | 13.0101 | 0.00068 | 1.6189 | 25.3157 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 03 17:57 | 2025 Sep 02 20:45:25 | 13.0101 | 0.00068 | 1.6189 | 25.3157 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 02 17:56 | 2025 Aug 27 05:08:52 | 13.0015 | 0.00072 | 1.6221 | 26.8564 | 213.0816 | 0.98511 | 5.500 |
| 2025 Sep 01 17:56 | 2025 Aug 27 05:08:52 | 13.0015 | 0.00072 | 1.6221 | 26.8564 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 31 17:56 | 2025 Aug 27 05:08:52 | 13.0015 | 0.00072 | 1.6221 | 26.8564 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 30 17:56 | 2025 Aug 27 05:08:52 | 13.0015 | 0.00072 | 1.6221 | 26.8564 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 29 17:56 | 2025 Aug 27 05:08:52 | 13.0015 | 0.00072 | 1.6221 | 26.8564 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 28 17:57 | 2025 Aug 27 05:08:52 | 13.0015 | 0.00072 | 1.6221 | 26.8564 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 27 17:56 | 2025 Aug 23 04:07:41 | 12.9963 | 0.00074 | 1.6239 | 27.4551 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 26 17:56 | 2025 Aug 23 04:07:41 | 12.9963 | 0.00074 | 1.6239 | 27.4551 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 25 17:56 | 2025 Aug 23 04:07:41 | 12.9963 | 0.00074 | 1.6239 | 27.4551 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 24 17:56 | 2025 Aug 23 04:07:41 | 12.9963 | 0.00074 | 1.6239 | 27.4551 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 23 17:56 | 2025 Aug 23 04:07:41 | 12.9963 | 0.00074 | 1.6239 | 27.4551 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 22 17:56 | 2025 Aug 17 19:08:01 | 12.9895 | 0.00078 | 1.6265 | 27.5096 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 20 17:56 | 2025 Aug 17 19:08:01 | 12.9895 | 0.00078 | 1.6265 | 27.5096 | 213.0816 | 0.98511 | 5.500 |
| 2025 Aug 19 17:56 | 2025 Aug 17 19:08:01 | 12.9895 | 0.00078 | 1.6265 | 27.5096 | 213.0816 | 0.98511 | 5.500 |