Orbital elements of ERS-1
| Launched | 16 July 1991 |
| Flight ended | – |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | European Space Agency |
| NORAD ID | 21574 |
| 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 05 18:57 | 2025 Dec 05 00:29:51 | 98.7907 | 0.00329 | 23.3255 | 122.2305 | 238.2073 | 14.39356 | 5.743 |
| 2025 Dec 04 18:57 | 2025 Dec 04 01:08:25 | 98.7909 | 0.00328 | 23.2590 | 125.0517 | 238.2073 | 14.39356 | 5.743 |
| 2025 Dec 03 18:56 | 2025 Dec 03 11:47:36 | 98.7910 | 0.00328 | 23.2210 | 126.6590 | 238.2073 | 14.39356 | 5.743 |
| 2025 Dec 02 18:56 | 2025 Dec 02 10:46:03 | 98.7911 | 0.00328 | 23.1497 | 129.6794 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 30 18:57 | 2025 Nov 30 12:03:11 | 98.7913 | 0.00328 | 23.0167 | 135.3116 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 29 18:56 | 2025 Nov 29 01:01:01 | 98.7914 | 0.00327 | 22.9170 | 139.5064 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 28 18:57 | 2025 Nov 27 18:59:10 | 98.7915 | 0.00326 | 22.8315 | 143.1492 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 27 18:57 | 2025 Nov 27 00:38:02 | 98.7915 | 0.00326 | 22.7792 | 145.3830 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 26 18:57 | 2025 Nov 26 11:17:13 | 98.7915 | 0.00326 | 22.7412 | 147.0020 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 25 18:57 | 2025 Nov 25 00:15:03 | 98.7915 | 0.00325 | 22.6414 | 151.2175 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 24 18:56 | 2025 Nov 24 00:53:36 | 98.7915 | 0.00325 | 22.5749 | 154.0550 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 23 18:57 | 2025 Nov 23 01:32:10 | 98.7915 | 0.00325 | 22.5084 | 156.9115 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 21 18:57 | 2025 Nov 21 01:09:10 | 98.7915 | 0.00323 | 22.3706 | 162.8411 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 20 18:56 | 2025 Nov 20 00:07:37 | 98.7915 | 0.00323 | 22.2994 | 165.9198 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 18 18:57 | 2025 Nov 18 11:25:20 | 98.7917 | 0.00322 | 22.1948 | 170.3823 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 16 18:58 | 2025 Nov 15 11:40:53 | 98.7922 | 0.00320 | 21.9905 | 179.2228 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 15 18:57 | 2025 Nov 15 11:40:53 | 98.7922 | 0.00320 | 21.9905 | 179.2228 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 13 18:56 | 2025 Nov 13 11:17:52 | 98.7924 | 0.00319 | 21.8528 | 185.1578 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 12 18:57 | 2025 Nov 12 00:15:40 | 98.7924 | 0.00318 | 21.7530 | 189.4618 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 11 18:55 | 2025 Nov 11 00:54:13 | 98.7924 | 0.00318 | 21.6865 | 192.3831 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 10 18:57 | 2025 Nov 08 17:50:46 | 98.7925 | 0.00316 | 21.5297 | 199.2649 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 09 18:57 | 2025 Nov 08 17:50:46 | 98.7925 | 0.00316 | 21.5297 | 199.2649 | 238.2073 | 14.39356 | 5.743 |
| 2025 Nov 08 18:56 | 2025 Nov 08 11:10:21 | 98.7925 | 0.00316 | 21.5106 | 200.0982 | 238.2073 | 14.39356 | 5.743 |