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 Jan 27 18:56 | 2026 Jan 27 11:26:45 | 98.7898 | 0.00314 | 2.9784 | 326.2226 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 26 18:57 | 2026 Jan 26 12:05:22 | 98.7898 | 0.00314 | 2.9119 | 329.1557 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 25 18:57 | 2026 Jan 25 11:03:54 | 98.7898 | 0.00314 | 2.8406 | 332.3025 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 24 18:58 | 2026 Jan 24 11:42:32 | 98.7898 | 0.00315 | 2.7741 | 335.2350 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 22 18:56 | 2026 Jan 22 11:19:41 | 98.7897 | 0.00316 | 2.6363 | 341.2945 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 21 18:56 | 2026 Jan 21 11:58:19 | 98.7897 | 0.00316 | 2.5698 | 344.1968 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 20 19:06 | 2026 Jan 20 07:36:38 | 98.7896 | 0.00317 | 2.4891 | 347.7100 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 19 18:57 | 2026 Jan 19 01:34:52 | 98.7895 | 0.00318 | 2.4036 | 351.4480 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 18 18:57 | 2026 Jan 17 21:13:11 | 98.7896 | 0.00318 | 2.3228 | 354.9808 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 17 18:56 | 2026 Jan 17 14:32:47 | 98.7896 | 0.00319 | 2.3038 | 355.8104 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 16 18:57 | 2026 Jan 16 13:31:18 | 98.7897 | 0.00319 | 2.2326 | 358.9131 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 15 18:56 | 2026 Jan 15 14:09:55 | 98.7897 | 0.00320 | 2.1661 | 1.7913 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 13 18:56 | 2026 Jan 13 15:27:09 | 98.7898 | 0.00321 | 2.0331 | 7.5470 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 11 18:57 | 2026 Jan 11 13:24:11 | 98.7899 | 0.00322 | 1.8906 | 13.7130 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 10 18:57 | 2026 Jan 09 14:41:24 | 98.7898 | 0.00323 | 1.7575 | 19.4309 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 09 18:57 | 2026 Jan 09 01:20:37 | 98.7898 | 0.00323 | 1.7195 | 21.0296 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 08 18:56 | 2026 Jan 08 15:20:01 | 98.7897 | 0.00323 | 1.6910 | 22.2632 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 07 18:57 | 2026 Jan 06 06:36:39 | 98.7895 | 0.00324 | 1.5295 | 29.1631 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 06 18:56 | 2026 Jan 06 06:36:39 | 98.7895 | 0.00324 | 1.5295 | 29.1631 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 05 18:57 | 2026 Jan 05 12:15:33 | 98.7895 | 0.00325 | 1.4773 | 31.3659 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 04 18:56 | 2026 Jan 04 11:14:03 | 98.7895 | 0.00325 | 1.4061 | 34.3790 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 03 18:57 | 2026 Jan 03 11:52:40 | 98.7896 | 0.00326 | 1.3396 | 37.2136 | 33.6961 | 14.39412 | 5.743 |
| 2026 Jan 01 18:56 | 2026 Jan 01 14:49:58 | 98.7896 | 0.00327 | 1.2113 | 42.6995 | 33.6961 | 14.39412 | 5.743 |
| 2025 Dec 31 18:57 | 2025 Dec 31 15:28:34 | 98.7898 | 0.00327 | 1.1448 | 45.5245 | 33.6961 | 14.39412 | 5.743 |