Orbital elements of ESIAFI 1
| Launched | 20 February 1981 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 12309 |
| Alternative names |
COMSTAR 4 |
| 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 May 08 17:56 | 2025 May 03 00:49:12 | 9.4929 | 0.00036 | 20.9306 | 81.2690 | 278.6804 | 1.00276 | – |
| 2025 May 07 17:56 | 2025 May 03 00:49:12 | 9.4929 | 0.00036 | 20.9306 | 81.2690 | 278.6804 | 1.00276 | – |
| 2025 May 06 17:57 | 2025 May 03 00:49:12 | 9.4929 | 0.00036 | 20.9306 | 81.2690 | 278.6804 | 1.00276 | – |
| 2025 May 05 17:56 | 2025 May 03 00:49:12 | 9.4929 | 0.00036 | 20.9306 | 81.2690 | 278.6804 | 1.00276 | – |
| 2025 May 04 17:57 | 2025 May 03 00:49:12 | 9.4929 | 0.00036 | 20.9306 | 81.2690 | 278.6804 | 1.00276 | – |
| 2025 May 03 17:57 | 2025 May 03 00:49:12 | 9.4929 | 0.00036 | 20.9306 | 81.2690 | 278.6804 | 1.00276 | – |
| 2025 May 01 17:56 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 30 17:56 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 29 17:57 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 27 17:56 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 26 17:57 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 25 17:56 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 24 17:56 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 23 17:57 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 22 17:56 | 2025 Apr 22 01:33:23 | 9.5160 | 0.00037 | 20.9352 | 86.5648 | 278.6804 | 1.00276 | – |
| 2025 Apr 21 17:57 | 2025 Apr 15 02:01:34 | 9.5292 | 0.00039 | 20.9385 | 82.0753 | 278.6804 | 1.00276 | – |
| 2025 Apr 20 17:56 | 2025 Apr 15 02:01:34 | 9.5292 | 0.00039 | 20.9385 | 82.0753 | 278.6804 | 1.00276 | – |
| 2025 Apr 19 17:56 | 2025 Apr 15 02:01:34 | 9.5292 | 0.00039 | 20.9385 | 82.0753 | 278.6804 | 1.00276 | – |
| 2025 Apr 18 17:57 | 2025 Apr 15 02:01:34 | 9.5292 | 0.00039 | 20.9385 | 82.0753 | 278.6804 | 1.00276 | – |
| 2025 Apr 17 17:56 | 2025 Apr 15 02:01:34 | 9.5292 | 0.00039 | 20.9385 | 82.0753 | 278.6804 | 1.00276 | – |
| 2025 Apr 16 17:57 | 2025 Apr 15 02:01:34 | 9.5292 | 0.00039 | 20.9385 | 82.0753 | 278.6804 | 1.00276 | – |
| 2025 Apr 15 17:56 | 2025 Apr 10 02:21:52 | 9.5379 | 0.00038 | 20.9410 | 75.6264 | 278.6804 | 1.00276 | – |
| 2025 Apr 14 17:56 | 2025 Apr 10 02:21:52 | 9.5379 | 0.00038 | 20.9410 | 75.6264 | 278.6804 | 1.00276 | – |
| 2025 Apr 11 17:57 | 2025 Apr 10 02:21:52 | 9.5379 | 0.00038 | 20.9410 | 75.6264 | 278.6804 | 1.00276 | – |