Orbital elements of TDRS 4
| Launched | 12 March 1989 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 19883 |
| 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 Jul 17 17:57 | 2026 Jul 15 22:23:02 | 12.8085 | 0.00155 | 23.6575 | 315.9131 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 16 17:56 | 2026 Jul 15 22:23:02 | 12.8085 | 0.00155 | 23.6575 | 315.9131 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 15 17:57 | 2026 Jul 11 11:31:50 | 12.8087 | 0.00156 | 23.6593 | 316.6551 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 14 17:56 | 2026 Jul 11 11:31:50 | 12.8087 | 0.00156 | 23.6593 | 316.6551 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 13 17:56 | 2026 Jul 11 11:31:50 | 12.8087 | 0.00156 | 23.6593 | 316.6551 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 12 17:56 | 2026 Jul 11 11:31:50 | 12.8087 | 0.00156 | 23.6593 | 316.6551 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 11 17:56 | 2026 Jul 11 11:31:50 | 12.8087 | 0.00156 | 23.6593 | 316.6551 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 09 17:56 | 2026 Jul 04 18:06:49 | 12.8093 | 0.00159 | 23.6619 | 317.1987 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 08 17:56 | 2026 Jul 04 18:06:49 | 12.8093 | 0.00159 | 23.6619 | 317.1987 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 07 17:56 | 2026 Jul 04 18:06:49 | 12.8093 | 0.00159 | 23.6619 | 317.1987 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 06 17:57 | 2026 Jul 04 18:06:49 | 12.8093 | 0.00159 | 23.6619 | 317.1987 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 05 17:56 | 2026 Jul 04 18:06:49 | 12.8093 | 0.00159 | 23.6619 | 317.1987 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 04 17:56 | 2026 Jun 28 14:11:18 | 12.8098 | 0.00160 | 23.6643 | 317.5196 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 03 17:57 | 2026 Jun 28 14:11:18 | 12.8098 | 0.00160 | 23.6643 | 317.5196 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 02 17:56 | 2026 Jun 28 14:11:18 | 12.8098 | 0.00160 | 23.6643 | 317.5196 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jul 01 17:56 | 2026 Jun 28 14:11:18 | 12.8098 | 0.00160 | 23.6643 | 317.5196 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 30 17:56 | 2026 Jun 28 14:11:18 | 12.8098 | 0.00160 | 23.6643 | 317.5196 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 29 17:57 | 2026 Jun 28 14:11:18 | 12.8098 | 0.00160 | 23.6643 | 317.5196 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 28 17:56 | 2026 Jun 22 14:14:16 | 12.8103 | 0.00160 | 23.6665 | 318.0815 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 27 17:55 | 2026 Jun 22 14:14:16 | 12.8103 | 0.00160 | 23.6665 | 318.0815 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 26 17:56 | 2026 Jun 22 14:14:16 | 12.8103 | 0.00160 | 23.6665 | 318.0815 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 25 17:56 | 2026 Jun 22 14:14:16 | 12.8103 | 0.00160 | 23.6665 | 318.0815 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 24 17:55 | 2026 Jun 22 14:14:16 | 12.8103 | 0.00160 | 23.6665 | 318.0815 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 23 17:56 | 2026 Jun 22 14:14:16 | 12.8103 | 0.00160 | 23.6665 | 318.0815 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 22 17:56 | 2026 Jun 17 05:15:51 | 12.8107 | 0.00162 | 23.6686 | 318.8051 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 21 17:57 | 2026 Jun 17 05:15:51 | 12.8107 | 0.00162 | 23.6686 | 318.8051 | 55.9093 | 0.98481 | 3.243 |
| 2026 Jun 20 17:56 | 2026 Jun 17 05:15:51 | 12.8107 | 0.00162 | 23.6686 | 318.8051 | 55.9093 | 0.98481 | 3.243 |