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 |
| 2026 Mar 13 18:57 | 2026 Mar 12 14:48:10 | 98.7879 | 0.00318 | 5.9950 | 191.6849 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 12 18:57 | 2026 Mar 12 13:08:05 | 98.7879 | 0.00318 | 5.9902 | 191.8901 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 11 18:56 | 2026 Mar 11 12:06:39 | 98.7880 | 0.00317 | 5.9190 | 195.0101 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 10 18:56 | 2026 Mar 10 11:05:12 | 98.7882 | 0.00317 | 5.8477 | 198.1247 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 09 18:56 | 2026 Mar 09 11:43:52 | 98.7883 | 0.00316 | 5.7812 | 201.0574 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 08 18:57 | 2026 Mar 08 12:22:31 | 98.7884 | 0.00316 | 5.7147 | 203.9802 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 07 18:57 | 2026 Mar 07 14:41:16 | 98.7884 | 0.00315 | 5.6530 | 206.7069 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 06 18:56 | 2026 Mar 06 00:19:04 | 98.7885 | 0.00314 | 5.5437 | 211.5317 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 05 18:56 | 2026 Mar 05 14:18:29 | 98.7885 | 0.00314 | 5.5152 | 212.7599 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 04 18:57 | 2026 Mar 04 11:36:57 | 98.7885 | 0.00313 | 5.4392 | 216.0960 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 03 18:56 | 2026 Mar 03 00:34:56 | 98.7885 | 0.00313 | 5.3394 | 220.5217 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 02 18:57 | 2026 Mar 02 14:34:21 | 98.7887 | 0.00313 | 5.3109 | 221.7763 | 168.3604 | 14.39452 | 5.743 |
| 2026 Mar 01 18:57 | 2026 Mar 01 11:52:49 | 98.7887 | 0.00312 | 5.2349 | 225.1441 | 168.3604 | 14.39452 | 5.743 |
| 2026 Feb 28 18:56 | 2026 Feb 28 10:51:22 | 98.7888 | 0.00312 | 5.1636 | 228.3161 | 168.3604 | 14.39452 | 5.743 |
| 2026 Feb 27 19:05 | 2026 Feb 27 06:29:43 | 98.7888 | 0.00311 | 5.0829 | 231.9305 | 168.3604 | 14.39452 | 5.743 |
| 2026 Feb 26 20:45 | 2026 Feb 26 12:08:40 | 98.7889 | 0.00311 | 5.0306 | 234.2714 | 168.3604 | 14.39452 | 5.743 |