Orbital elements of DELTA 1 R/B
| Launched | 2 February 1971 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 4903 |
| 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 17 18:56 | 2026 Mar 14 16:24:58 | 25.5672 | 0.58234 | 14.4101 | 180.2285 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 16 18:57 | 2026 Mar 14 16:24:58 | 25.5672 | 0.58234 | 14.4101 | 180.2285 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 15 18:56 | 2026 Mar 14 16:24:58 | 25.5672 | 0.58234 | 14.4101 | 180.2285 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 14 18:56 | 2026 Mar 10 11:09:08 | 25.5689 | 0.58228 | 14.6381 | 174.4170 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 13 18:57 | 2026 Mar 10 11:09:08 | 25.5689 | 0.58228 | 14.6381 | 174.4170 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 12 18:57 | 2026 Mar 10 11:09:08 | 25.5689 | 0.58228 | 14.6381 | 174.4170 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 11 18:56 | 2026 Mar 10 11:09:08 | 25.5689 | 0.58228 | 14.6381 | 174.4170 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 10 18:56 | 2026 Mar 10 11:09:08 | 25.5689 | 0.58228 | 14.6381 | 174.4170 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 09 18:56 | 2026 Mar 03 15:57:56 | 25.5721 | 0.58218 | 15.0052 | 165.0568 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 08 18:57 | 2026 Mar 03 15:57:56 | 25.5721 | 0.58218 | 15.0052 | 165.0568 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 07 18:57 | 2026 Mar 03 15:57:56 | 25.5721 | 0.58218 | 15.0052 | 165.0568 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 06 18:56 | 2026 Mar 03 15:57:56 | 25.5721 | 0.58218 | 15.0052 | 165.0568 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 05 18:56 | 2026 Mar 03 15:57:56 | 25.5721 | 0.58218 | 15.0052 | 165.0568 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 04 18:57 | 2026 Mar 03 15:57:56 | 25.5721 | 0.58218 | 15.0052 | 165.0568 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 03 18:56 | 2026 Feb 26 12:07:24 | 25.5748 | 0.58213 | 15.2834 | 157.9601 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 02 18:57 | 2026 Feb 26 12:07:24 | 25.5748 | 0.58213 | 15.2834 | 157.9601 | 179.3945 | 4.25453 | 7.743 |
| 2026 Mar 01 18:57 | 2026 Feb 26 12:07:24 | 25.5748 | 0.58213 | 15.2834 | 157.9601 | 179.3945 | 4.25453 | 7.743 |
| 2026 Feb 28 18:56 | 2026 Feb 26 12:07:24 | 25.5748 | 0.58213 | 15.2834 | 157.9601 | 179.3945 | 4.25453 | 7.743 |
| 2026 Feb 27 19:05 | 2026 Feb 26 12:07:24 | 25.5748 | 0.58213 | 15.2834 | 157.9601 | 179.3945 | 4.25453 | 7.743 |
| 2026 Feb 26 20:45 | 2026 Feb 26 12:07:24 | 25.5748 | 0.58213 | 15.2834 | 157.9601 | 179.3945 | 4.25453 | 7.743 |