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 Aug 11 17:56 | 2026 Aug 11 11:48:58 | 98.7798 | 0.00331 | 16.3694 | 102.6026 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 10 17:56 | 2026 Aug 10 12:27:44 | 98.7798 | 0.00331 | 16.3029 | 105.4057 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 09 17:57 | 2026 Aug 09 11:26:24 | 98.7797 | 0.00330 | 16.2317 | 108.3625 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 08 17:57 | 2026 Aug 08 12:05:09 | 98.7797 | 0.00330 | 16.1652 | 111.1710 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 07 17:57 | 2026 Aug 07 02:43:22 | 98.7795 | 0.00330 | 16.0703 | 115.1026 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 06 17:57 | 2026 Aug 06 01:42:02 | 98.7795 | 0.00330 | 15.9991 | 118.0724 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 05 17:56 | 2026 Aug 05 02:20:47 | 98.7794 | 0.00329 | 15.9326 | 120.8776 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 04 17:57 | 2026 Aug 03 18:39:06 | 98.7794 | 0.00329 | 15.8425 | 124.6509 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 03 17:56 | 2026 Aug 02 15:57:40 | 98.7794 | 0.00329 | 15.7665 | 127.8730 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 02 17:57 | 2026 Aug 02 00:56:52 | 98.7794 | 0.00328 | 15.7238 | 129.6965 | 257.8863 | 14.39548 | 5.743 |
| 2026 Aug 01 17:57 | 2026 Aug 01 01:35:37 | 98.7794 | 0.00328 | 15.6573 | 132.4801 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 31 17:56 | 2026 Jul 30 01:13:01 | 98.7795 | 0.00327 | 15.5197 | 138.3138 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 30 17:57 | 2026 Jul 30 01:13:01 | 98.7795 | 0.00327 | 15.5197 | 138.3138 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 29 17:57 | 2026 Jul 29 01:51:46 | 98.7796 | 0.00327 | 15.4532 | 141.1380 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 28 17:57 | 2026 Jul 28 00:50:25 | 98.7796 | 0.00326 | 15.3820 | 144.1978 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 27 17:57 | 2026 Jul 27 01:29:10 | 98.7797 | 0.00326 | 15.3156 | 146.9852 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 26 17:56 | 2026 Jul 26 07:08:11 | 98.7797 | 0.00326 | 15.2634 | 149.2157 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 25 17:57 | 2026 Jul 24 11:45:51 | 98.7796 | 0.00325 | 15.1399 | 154.4989 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 24 17:56 | 2026 Jul 24 01:45:19 | 98.7796 | 0.00324 | 15.1115 | 155.7123 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 23 17:57 | 2026 Jul 23 07:24:19 | 98.7795 | 0.00324 | 15.0592 | 157.9436 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 22 17:57 | 2026 Jul 22 01:22:42 | 98.7797 | 0.00324 | 14.9738 | 161.6345 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 21 17:57 | 2026 Jul 21 00:21:21 | 98.7796 | 0.00323 | 14.9026 | 164.6775 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 20 17:57 | 2026 Jul 20 01:00:06 | 98.7796 | 0.00322 | 14.8361 | 167.5134 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 19 19:06 | 2026 Jul 19 11:39:23 | 98.7796 | 0.00322 | 14.7982 | 169.1563 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 19 17:57 | 2026 Jul 19 01:38:50 | 98.7796 | 0.00322 | 14.7697 | 170.3652 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 18 17:57 | 2026 Jul 18 07:17:51 | 98.7796 | 0.00321 | 14.7175 | 172.6051 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 17 17:57 | 2026 Jul 17 01:16:14 | 98.7795 | 0.00320 | 14.6320 | 176.3094 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 16 17:56 | 2026 Jul 16 06:55:14 | 98.7796 | 0.00319 | 14.5798 | 178.5323 | 257.8863 | 14.39548 | 5.743 |
| 2026 Jul 15 17:57 | 2026 Jul 15 00:53:37 | 98.7796 | 0.00318 | 14.4944 | 182.2386 | 257.8863 | 14.39548 | 5.743 |