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 May 04 17:57 | 2026 May 04 07:19:32 | 98.7826 | 0.00326 | 9.5951 | 39.1169 | 321.2368 | 14.39490 | 5.743 |
| 2026 May 03 17:57 | 2026 May 03 07:58:14 | 98.7827 | 0.00327 | 9.5286 | 41.9435 | 321.2368 | 14.39490 | 5.743 |
| 2026 May 02 17:57 | 2026 May 02 06:56:51 | 98.7828 | 0.00327 | 9.4574 | 44.9616 | 321.2368 | 14.39490 | 5.743 |
| 2026 May 01 17:56 | 2026 May 01 12:35:50 | 98.7828 | 0.00328 | 9.4052 | 47.1699 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 30 17:56 | 2026 Apr 30 01:33:53 | 98.7830 | 0.00328 | 9.3055 | 51.3854 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 29 17:57 | 2026 Apr 29 07:12:52 | 98.7831 | 0.00329 | 9.2532 | 53.5993 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 28 17:56 | 2026 Apr 28 11:11:45 | 98.7832 | 0.00329 | 9.1963 | 56.0064 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 27 17:58 | 2026 Apr 27 06:50:10 | 98.7834 | 0.00329 | 9.1155 | 59.4154 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 26 17:58 | 2026 Apr 26 07:28:52 | 98.7834 | 0.00330 | 9.0490 | 62.2142 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 25 17:58 | 2026 Apr 25 11:27:45 | 98.7835 | 0.00330 | 8.9921 | 64.6245 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 24 17:59 | 2026 Apr 24 00:25:48 | 98.7837 | 0.00330 | 8.8923 | 68.8139 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 23 17:57 | 2026 Apr 23 01:04:29 | 98.7838 | 0.00331 | 8.8259 | 71.6045 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 22 17:57 | 2026 Apr 22 01:43:11 | 98.7840 | 0.00331 | 8.7594 | 74.3942 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 21 17:57 | 2026 Apr 21 07:22:10 | 98.7841 | 0.00331 | 8.7071 | 76.5791 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 20 17:57 | 2026 Apr 20 08:00:51 | 98.7843 | 0.00331 | 8.6406 | 79.3731 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 19 17:58 | 2026 Apr 19 11:59:44 | 98.7844 | 0.00331 | 8.5837 | 81.7667 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 18 17:56 | 2026 Apr 18 00:57:46 | 98.7846 | 0.00331 | 8.4839 | 85.9387 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 16 17:57 | 2026 Apr 16 00:35:03 | 98.7847 | 0.00331 | 8.3462 | 91.6621 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 14 17:57 | 2026 Apr 14 11:53:00 | 98.7848 | 0.00332 | 8.2417 | 96.0385 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 13 17:57 | 2026 Apr 13 00:51:02 | 98.7849 | 0.00331 | 8.1420 | 100.2168 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 12 17:57 | 2026 Apr 12 08:10:05 | 98.7849 | 0.00331 | 8.0945 | 102.2095 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 11 17:57 | 2026 Apr 11 12:08:58 | 98.7850 | 0.00331 | 8.0375 | 104.6091 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 10 17:58 | 2026 Apr 10 07:47:22 | 98.7853 | 0.00331 | 7.9568 | 107.9838 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 09 18:01 | 2026 Apr 09 00:05:35 | 98.7854 | 0.00331 | 7.8665 | 111.7839 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 08 17:57 | 2026 Apr 08 07:24:39 | 98.7855 | 0.00330 | 7.8190 | 113.7539 | 321.2368 | 14.39490 | 5.743 |
| 2026 Apr 07 17:57 | 2026 Apr 07 01:22:57 | 98.7855 | 0.00330 | 7.7335 | 117.3556 | 321.2368 | 14.39490 | 5.743 |