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 Dec 06 18:56 | 2025 Dec 01 11:05:30 | 9.0845 | 0.00019 | 20.8328 | 10.6719 | 349.3145 | 1.00258 | – |
| 2025 Dec 05 18:57 | 2025 Dec 01 11:05:30 | 9.0845 | 0.00019 | 20.8328 | 10.6719 | 349.3145 | 1.00258 | – |
| 2025 Dec 04 18:57 | 2025 Dec 01 11:05:30 | 9.0845 | 0.00019 | 20.8328 | 10.6719 | 349.3145 | 1.00258 | – |
| 2025 Dec 03 18:56 | 2025 Dec 01 11:05:30 | 9.0845 | 0.00019 | 20.8328 | 10.6719 | 349.3145 | 1.00258 | – |
| 2025 Dec 02 18:56 | 2025 Dec 01 11:05:30 | 9.0845 | 0.00019 | 20.8328 | 10.6719 | 349.3145 | 1.00258 | – |
| 2025 Nov 30 18:57 | 2025 Nov 24 11:31:57 | 9.0985 | 0.00015 | 20.8358 | 22.0441 | 349.3145 | 1.00258 | – |
| 2025 Nov 29 18:56 | 2025 Nov 24 11:31:57 | 9.0985 | 0.00015 | 20.8358 | 22.0441 | 349.3145 | 1.00258 | – |
| 2025 Nov 28 18:57 | 2025 Nov 24 11:31:57 | 9.0985 | 0.00015 | 20.8358 | 22.0441 | 349.3145 | 1.00258 | – |
| 2025 Nov 27 18:57 | 2025 Nov 24 11:31:57 | 9.0985 | 0.00015 | 20.8358 | 22.0441 | 349.3145 | 1.00258 | – |
| 2025 Nov 26 18:57 | 2025 Nov 24 11:31:57 | 9.0985 | 0.00015 | 20.8358 | 22.0441 | 349.3145 | 1.00258 | – |
| 2025 Nov 25 18:57 | 2025 Nov 24 11:31:57 | 9.0985 | 0.00015 | 20.8358 | 22.0441 | 349.3145 | 1.00258 | – |
| 2025 Nov 24 18:56 | 2025 Nov 19 11:50:37 | 9.1076 | 0.00015 | 20.8382 | 23.6311 | 349.3145 | 1.00258 | – |
| 2025 Nov 23 18:57 | 2025 Nov 19 11:50:37 | 9.1076 | 0.00015 | 20.8382 | 23.6311 | 349.3145 | 1.00258 | – |
| 2025 Nov 21 18:57 | 2025 Nov 19 11:50:37 | 9.1076 | 0.00015 | 20.8382 | 23.6311 | 349.3145 | 1.00258 | – |
| 2025 Nov 20 18:56 | 2025 Nov 19 11:50:37 | 9.1076 | 0.00015 | 20.8382 | 23.6311 | 349.3145 | 1.00258 | – |
| 2025 Nov 18 18:57 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |
| 2025 Nov 16 18:58 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |
| 2025 Nov 15 18:57 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |
| 2025 Nov 13 18:56 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |
| 2025 Nov 12 18:57 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |
| 2025 Nov 11 18:55 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |
| 2025 Nov 10 18:57 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |
| 2025 Nov 09 18:57 | 2025 Nov 08 12:32:06 | 9.1290 | 0.00014 | 20.8430 | 7.3680 | 349.3145 | 1.00258 | – |