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 Jul 03 17:56 | 2025 Jul 03 13:09:54 | 98.7913 | 0.00313 | 12.7657 | 219.6466 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jul 02 17:56 | 2025 Jul 02 12:08:13 | 98.7913 | 0.00312 | 12.6944 | 222.8370 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jul 01 17:56 | 2025 Jul 01 01:05:51 | 98.7912 | 0.00312 | 12.5946 | 227.2674 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 30 17:56 | 2025 Jun 29 20:43:56 | 98.7913 | 0.00311 | 12.5138 | 230.8929 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 29 17:56 | 2025 Jun 28 23:02:28 | 98.7912 | 0.00311 | 12.4521 | 233.6391 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 28 17:56 | 2025 Jun 28 13:01:47 | 98.7912 | 0.00311 | 12.4236 | 234.9157 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 27 17:56 | 2025 Jun 27 00:19:18 | 98.7912 | 0.00310 | 12.3190 | 239.6703 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 26 17:56 | 2025 Jun 25 23:17:37 | 98.7912 | 0.00310 | 12.2477 | 242.8529 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 25 17:56 | 2025 Jun 24 17:15:35 | 98.7912 | 0.00310 | 12.1622 | 246.6803 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 24 17:56 | 2025 Jun 24 12:15:15 | 98.7913 | 0.00309 | 12.1479 | 247.3173 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 23 17:56 | 2025 Jun 23 11:13:33 | 98.7912 | 0.00309 | 12.0767 | 250.4898 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 22 17:56 | 2025 Jun 21 17:30:44 | 98.7911 | 0.00309 | 11.9579 | 255.8489 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 21 17:56 | 2025 Jun 21 10:50:17 | 98.7911 | 0.00309 | 11.9389 | 256.6647 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 20 17:57 | 2025 Jun 19 13:47:14 | 98.7910 | 0.00309 | 11.8106 | 262.4916 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 19 17:56 | 2025 Jun 18 14:25:39 | 98.7910 | 0.00308 | 11.7440 | 265.5071 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 18 17:56 | 2025 Jun 18 11:05:26 | 98.7910 | 0.00308 | 11.7345 | 265.9276 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 17 17:56 | 2025 Jun 17 06:43:31 | 98.7910 | 0.00308 | 11.6537 | 269.5111 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 16 17:56 | 2025 Jun 16 00:41:29 | 98.7910 | 0.00308 | 11.5682 | 273.4420 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 15 17:56 | 2025 Jun 14 15:19:13 | 98.7910 | 0.00309 | 11.4732 | 277.7368 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 14 17:56 | 2025 Jun 13 22:38:06 | 98.7910 | 0.00309 | 11.4257 | 279.8766 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 13 17:56 | 2025 Jun 13 12:37:25 | 98.7910 | 0.00309 | 11.3971 | 281.1278 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 12 17:56 | 2025 Jun 11 20:34:42 | 98.7909 | 0.00309 | 11.2831 | 286.2750 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 11 17:56 | 2025 Jun 10 19:33:00 | 98.7910 | 0.00309 | 11.2118 | 289.4910 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 10 17:56 | 2025 Jun 09 21:51:32 | 98.7910 | 0.00310 | 11.1500 | 292.2928 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 09 17:56 | 2025 Jun 08 17:29:37 | 98.7911 | 0.00310 | 11.0693 | 295.9163 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 08 17:56 | 2025 Jun 07 21:28:16 | 98.7911 | 0.00310 | 11.0122 | 298.4841 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 07 17:56 | 2025 Jun 06 22:06:41 | 98.7911 | 0.00310 | 10.9457 | 301.4847 | 140.2433 | 14.39207 | 5.743 |
| 2025 Jun 06 17:56 | 2025 Jun 05 14:24:32 | 98.7913 | 0.00311 | 10.8554 | 305.5268 | 140.2433 | 14.39207 | 5.743 |