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 May 05 17:57 | 2026 May 05 05:37:26 | 99.7875 | 0.01070 | 1.4996 | 54.0738 | 100.9510 | 13.24613 | – |
| 2026 May 04 17:57 | 2026 Apr 29 23:50:52 | 99.7886 | 0.01069 | 1.1713 | 66.3592 | 100.9510 | 13.24613 | – |
| 2026 May 03 17:57 | 2026 Apr 29 23:50:52 | 99.7886 | 0.01069 | 1.1713 | 66.3592 | 100.9510 | 13.24613 | – |
| 2026 May 02 17:57 | 2026 Apr 29 23:50:52 | 99.7886 | 0.01069 | 1.1713 | 66.3592 | 100.9510 | 13.24613 | – |
| 2026 May 01 17:56 | 2026 Apr 29 23:50:52 | 99.7886 | 0.01069 | 1.1713 | 66.3592 | 100.9510 | 13.24613 | – |
| 2026 Apr 30 17:56 | 2026 Apr 29 23:50:52 | 99.7886 | 0.01069 | 1.1713 | 66.3592 | 100.9510 | 13.24613 | – |
| 2026 Apr 29 17:57 | 2026 Apr 24 04:56:31 | 99.7886 | 0.01069 | 0.8086 | 79.9606 | 100.9510 | 13.24613 | – |
| 2026 Apr 28 17:56 | 2026 Apr 24 04:56:31 | 99.7886 | 0.01069 | 0.8086 | 79.9606 | 100.9510 | 13.24613 | – |
| 2026 Apr 27 17:58 | 2026 Apr 24 04:56:31 | 99.7886 | 0.01069 | 0.8086 | 79.9606 | 100.9510 | 13.24613 | – |
| 2026 Apr 26 17:58 | 2026 Apr 24 04:56:31 | 99.7886 | 0.01069 | 0.8086 | 79.9606 | 100.9510 | 13.24613 | – |
| 2026 Apr 25 17:58 | 2026 Apr 24 04:56:31 | 99.7886 | 0.01069 | 0.8086 | 79.9606 | 100.9510 | 13.24613 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 04:56:31 | 99.7886 | 0.01069 | 0.8086 | 79.9606 | 100.9510 | 13.24613 | – |
| 2026 Apr 23 17:57 | 2026 Apr 17 16:26:03 | 99.7895 | 0.01067 | 0.4001 | 95.2787 | 100.9510 | 13.24613 | – |
| 2026 Apr 22 17:57 | 2026 Apr 17 16:26:03 | 99.7895 | 0.01067 | 0.4001 | 95.2787 | 100.9510 | 13.24613 | – |
| 2026 Apr 21 17:57 | 2026 Apr 17 16:26:03 | 99.7895 | 0.01067 | 0.4001 | 95.2787 | 100.9510 | 13.24613 | – |
| 2026 Apr 20 17:57 | 2026 Apr 17 16:26:03 | 99.7895 | 0.01067 | 0.4001 | 95.2787 | 100.9510 | 13.24613 | – |
| 2026 Apr 19 17:58 | 2026 Apr 17 16:26:03 | 99.7895 | 0.01067 | 0.4001 | 95.2787 | 100.9510 | 13.24613 | – |
| 2026 Apr 18 17:56 | 2026 Apr 13 04:17:44 | 99.7900 | 0.01066 | 0.1177 | 105.8787 | 100.9510 | 13.24613 | – |
| 2026 Apr 16 17:57 | 2026 Apr 13 04:17:44 | 99.7900 | 0.01066 | 0.1177 | 105.8787 | 100.9510 | 13.24613 | – |
| 2026 Apr 14 17:57 | 2026 Apr 13 04:17:44 | 99.7900 | 0.01066 | 0.1177 | 105.8787 | 100.9510 | 13.24613 | – |
| 2026 Apr 13 17:57 | 2026 Apr 13 04:17:44 | 99.7900 | 0.01066 | 0.1177 | 105.8787 | 100.9510 | 13.24613 | – |
| 2026 Apr 12 17:57 | 2026 Apr 08 04:38:39 | 99.7904 | 0.01064 | 23.8053 | 117.6307 | 100.9510 | 13.24613 | – |
| 2026 Apr 11 17:57 | 2026 Apr 08 04:38:39 | 99.7904 | 0.01064 | 23.8053 | 117.6307 | 100.9510 | 13.24613 | – |
| 2026 Apr 10 17:58 | 2026 Apr 08 04:38:39 | 99.7904 | 0.01064 | 23.8053 | 117.6307 | 100.9510 | 13.24613 | – |
| 2026 Apr 09 18:01 | 2026 Apr 08 04:38:39 | 99.7904 | 0.01064 | 23.8053 | 117.6307 | 100.9510 | 13.24613 | – |
| 2026 Apr 08 17:57 | 2026 Apr 08 04:38:39 | 99.7904 | 0.01064 | 23.8053 | 117.6307 | 100.9510 | 13.24613 | – |