Orbital elements of DELTA 1 DEB
| Launched | 11 June 1975 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 21551 |
| 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 06 18:56 | 2026 Mar 04 05:20:12 | 99.7941 | 0.01053 | 21.6134 | 200.6238 | 312.3099 | 13.24598 | – |
| 2026 Mar 05 18:56 | 2026 Mar 04 05:20:12 | 99.7941 | 0.01053 | 21.6134 | 200.6238 | 312.3099 | 13.24598 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 05:20:12 | 99.7941 | 0.01053 | 21.6134 | 200.6238 | 312.3099 | 13.24598 | – |
| 2026 Mar 03 18:56 | 2026 Feb 26 05:59:21 | 99.7947 | 0.01052 | 21.2389 | 214.8625 | 312.3099 | 13.24598 | – |
| 2026 Mar 02 18:57 | 2026 Feb 26 05:59:21 | 99.7947 | 0.01052 | 21.2389 | 214.8625 | 312.3099 | 13.24598 | – |
| 2026 Mar 01 18:57 | 2026 Feb 26 05:59:21 | 99.7947 | 0.01052 | 21.2389 | 214.8625 | 312.3099 | 13.24598 | – |
| 2026 Feb 28 18:56 | 2026 Feb 26 05:59:21 | 99.7947 | 0.01052 | 21.2389 | 214.8625 | 312.3099 | 13.24598 | – |
| 2026 Feb 27 19:05 | 2026 Feb 26 05:59:21 | 99.7947 | 0.01052 | 21.2389 | 214.8625 | 312.3099 | 13.24598 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 05:59:21 | 99.7947 | 0.01052 | 21.2389 | 214.8625 | 312.3099 | 13.24598 | – |