Orbital elements of INTELSAT 503
| Launched | 14 December 1981 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | International Telecommunications Satellite Organization (INTELSAT) |
| NORAD ID | 12994 |
| 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 Mar 21 19:05 | 2026 Mar 20 02:50:33 | 11.3810 | 0.00475 | 21.8444 | 268.9815 | 283.3010 | 0.99466 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 02:50:33 | 11.3810 | 0.00475 | 21.8444 | 268.9815 | 283.3010 | 0.99466 | – |
| 2026 Mar 19 18:56 | 2026 Mar 15 01:24:15 | 11.3879 | 0.00478 | 21.8465 | 269.0588 | 283.3010 | 0.99466 | – |
| 2026 Mar 18 18:56 | 2026 Mar 15 01:24:15 | 11.3879 | 0.00478 | 21.8465 | 269.0588 | 283.3010 | 0.99466 | – |
| 2026 Mar 17 18:56 | 2026 Mar 15 01:24:15 | 11.3879 | 0.00478 | 21.8465 | 269.0588 | 283.3010 | 0.99466 | – |
| 2026 Mar 16 18:57 | 2026 Mar 15 01:24:15 | 11.3879 | 0.00478 | 21.8465 | 269.0588 | 283.3010 | 0.99466 | – |
| 2026 Mar 15 18:56 | 2026 Mar 15 01:24:15 | 11.3879 | 0.00478 | 21.8465 | 269.0588 | 283.3010 | 0.99466 | – |
| 2026 Mar 14 18:56 | 2026 Mar 10 01:40:07 | 11.3948 | 0.00477 | 21.8486 | 268.8076 | 283.3010 | 0.99466 | – |
| 2026 Mar 13 18:57 | 2026 Mar 10 01:40:07 | 11.3948 | 0.00477 | 21.8486 | 268.8076 | 283.3010 | 0.99466 | – |
| 2026 Mar 12 18:57 | 2026 Mar 10 01:40:07 | 11.3948 | 0.00477 | 21.8486 | 268.8076 | 283.3010 | 0.99466 | – |
| 2026 Mar 11 18:56 | 2026 Mar 10 01:40:07 | 11.3948 | 0.00477 | 21.8486 | 268.8076 | 283.3010 | 0.99466 | – |
| 2026 Mar 10 18:56 | 2026 Mar 10 01:40:07 | 11.3948 | 0.00477 | 21.8486 | 268.8076 | 283.3010 | 0.99466 | – |
| 2026 Mar 09 18:56 | 2026 Mar 04 01:53:38 | 11.4027 | 0.00478 | 21.8511 | 268.5771 | 283.3010 | 0.99466 | – |
| 2026 Mar 08 18:57 | 2026 Mar 04 01:53:38 | 11.4027 | 0.00478 | 21.8511 | 268.5771 | 283.3010 | 0.99466 | – |
| 2026 Mar 07 18:57 | 2026 Mar 04 01:53:38 | 11.4027 | 0.00478 | 21.8511 | 268.5771 | 283.3010 | 0.99466 | – |
| 2026 Mar 06 18:56 | 2026 Mar 04 01:53:38 | 11.4027 | 0.00478 | 21.8511 | 268.5771 | 283.3010 | 0.99466 | – |
| 2026 Mar 05 18:56 | 2026 Mar 04 01:53:38 | 11.4027 | 0.00478 | 21.8511 | 268.5771 | 283.3010 | 0.99466 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 01:53:38 | 11.4027 | 0.00478 | 21.8511 | 268.5771 | 283.3010 | 0.99466 | – |
| 2026 Mar 03 18:56 | 2026 Feb 25 22:52:52 | 11.4109 | 0.00482 | 21.8537 | 268.4940 | 283.3010 | 0.99466 | – |
| 2026 Mar 02 18:57 | 2026 Feb 25 22:52:52 | 11.4109 | 0.00482 | 21.8537 | 268.4940 | 283.3010 | 0.99466 | – |
| 2026 Mar 01 18:57 | 2026 Feb 25 22:52:52 | 11.4109 | 0.00482 | 21.8537 | 268.4940 | 283.3010 | 0.99466 | – |
| 2026 Feb 28 18:56 | 2026 Feb 25 22:52:52 | 11.4109 | 0.00482 | 21.8537 | 268.4940 | 283.3010 | 0.99466 | – |
| 2026 Feb 27 19:05 | 2026 Feb 25 22:52:52 | 11.4109 | 0.00482 | 21.8537 | 268.4940 | 283.3010 | 0.99466 | – |
| 2026 Feb 26 20:45 | 2026 Feb 25 22:52:52 | 11.4109 | 0.00482 | 21.8537 | 268.4940 | 283.3010 | 0.99466 | – |