Orbital elements of SKYNET 4A
| Launched | 31 December 1989 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United Kingdom |
| NORAD ID | 20401 |
| 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 Sep 15 17:56 | 2025 Sep 15 05:06:44 | 12.5969 | 0.00132 | 23.4118 | 295.8511 | 359.1504 | 0.98998 | – |
| 2025 Sep 12 17:57 | 2025 Sep 02 11:04:21 | 12.6011 | 0.00129 | 23.4167 | 296.2158 | 359.1504 | 0.98998 | – |
| 2025 Sep 11 17:57 | 2025 Sep 02 11:04:21 | 12.6011 | 0.00129 | 23.4167 | 296.2158 | 359.1504 | 0.98998 | – |
| 2025 Sep 10 17:56 | 2025 Sep 02 11:04:21 | 12.6011 | 0.00129 | 23.4167 | 296.2158 | 359.1504 | 0.98998 | – |
| 2025 Sep 08 17:57 | 2025 Sep 02 11:04:21 | 12.6011 | 0.00129 | 23.4167 | 296.2158 | 359.1504 | 0.98998 | – |
| 2025 Sep 07 17:56 | 2025 Sep 02 11:04:21 | 12.6011 | 0.00129 | 23.4167 | 296.2158 | 359.1504 | 0.98998 | – |
| 2025 Sep 06 20:41 | 2025 Sep 02 11:04:21 | 12.6011 | 0.00129 | 23.4167 | 296.2158 | 359.1504 | 0.98998 | – |
| 2025 Sep 03 17:57 | 2025 Sep 02 11:04:21 | 12.6011 | 0.00129 | 23.4167 | 296.2158 | 359.1504 | 0.98998 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 05:33:22 | 12.6034 | 0.00126 | 23.4190 | 296.2979 | 359.1504 | 0.98998 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 05:33:22 | 12.6034 | 0.00126 | 23.4190 | 296.2979 | 359.1504 | 0.98998 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 05:33:22 | 12.6034 | 0.00126 | 23.4190 | 296.2979 | 359.1504 | 0.98998 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 05:33:22 | 12.6034 | 0.00126 | 23.4190 | 296.2979 | 359.1504 | 0.98998 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 05:33:22 | 12.6034 | 0.00126 | 23.4190 | 296.2979 | 359.1504 | 0.98998 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 05:33:22 | 12.6034 | 0.00126 | 23.4190 | 296.2979 | 359.1504 | 0.98998 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 04:00:19 | 12.6045 | 0.00125 | 23.4205 | 296.8000 | 359.1504 | 0.98998 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 04:00:19 | 12.6045 | 0.00125 | 23.4205 | 296.8000 | 359.1504 | 0.98998 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 04:00:19 | 12.6045 | 0.00125 | 23.4205 | 296.8000 | 359.1504 | 0.98998 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 04:00:19 | 12.6045 | 0.00125 | 23.4205 | 296.8000 | 359.1504 | 0.98998 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 04:00:19 | 12.6045 | 0.00125 | 23.4205 | 296.8000 | 359.1504 | 0.98998 | – |
| 2025 Aug 22 17:56 | 2025 Aug 18 02:29:29 | 12.6061 | 0.00124 | 23.4225 | 297.3470 | 359.1504 | 0.98998 | – |
| 2025 Aug 20 17:56 | 2025 Aug 18 02:29:29 | 12.6061 | 0.00124 | 23.4225 | 297.3470 | 359.1504 | 0.98998 | – |
| 2025 Aug 19 17:56 | 2025 Aug 18 02:29:29 | 12.6061 | 0.00124 | 23.4225 | 297.3470 | 359.1504 | 0.98998 | – |