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 | 21506 |
| 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 Apr 30 17:56 | 2026 Apr 29 13:26:25 | 99.5874 | 0.01739 | 22.3855 | 242.3219 | 173.0363 | 13.15350 | – |
| 2026 Apr 29 17:57 | 2026 Apr 24 04:10:30 | 99.5881 | 0.01742 | 22.0601 | 255.0726 | 173.0363 | 13.15350 | – |
| 2026 Apr 28 17:56 | 2026 Apr 24 04:10:30 | 99.5881 | 0.01742 | 22.0601 | 255.0726 | 173.0363 | 13.15350 | – |
| 2026 Apr 27 17:58 | 2026 Apr 24 04:10:30 | 99.5881 | 0.01742 | 22.0601 | 255.0726 | 173.0363 | 13.15350 | – |
| 2026 Apr 26 17:58 | 2026 Apr 24 04:10:30 | 99.5881 | 0.01742 | 22.0601 | 255.0726 | 173.0363 | 13.15350 | – |
| 2026 Apr 25 17:58 | 2026 Apr 24 04:10:30 | 99.5881 | 0.01742 | 22.0601 | 255.0726 | 173.0363 | 13.15350 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 04:10:30 | 99.5881 | 0.01742 | 22.0601 | 255.0726 | 173.0363 | 13.15350 | – |
| 2026 Apr 23 17:57 | 2026 Apr 17 12:52:42 | 99.5896 | 0.01745 | 21.6591 | 270.7436 | 173.0363 | 13.15350 | – |
| 2026 Apr 22 17:57 | 2026 Apr 17 12:52:42 | 99.5896 | 0.01745 | 21.6591 | 270.7436 | 173.0363 | 13.15350 | – |
| 2026 Apr 21 17:57 | 2026 Apr 17 12:52:42 | 99.5896 | 0.01745 | 21.6591 | 270.7436 | 173.0363 | 13.15350 | – |
| 2026 Apr 20 17:57 | 2026 Apr 17 12:52:42 | 99.5896 | 0.01745 | 21.6591 | 270.7436 | 173.0363 | 13.15350 | – |
| 2026 Apr 19 17:58 | 2026 Apr 17 12:52:42 | 99.5896 | 0.01745 | 21.6591 | 270.7436 | 173.0363 | 13.15350 | – |
| 2026 Apr 18 17:56 | 2026 Apr 10 04:16:02 | 99.5914 | 0.01750 | 21.2145 | 288.0903 | 173.0363 | 13.15350 | – |
| 2026 Apr 16 17:57 | 2026 Apr 10 04:16:02 | 99.5914 | 0.01750 | 21.2145 | 288.0903 | 173.0363 | 13.15350 | – |
| 2026 Apr 14 17:57 | 2026 Apr 10 04:16:02 | 99.5914 | 0.01750 | 21.2145 | 288.0903 | 173.0363 | 13.15350 | – |
| 2026 Apr 13 17:57 | 2026 Apr 10 04:16:02 | 99.5914 | 0.01750 | 21.2145 | 288.0903 | 173.0363 | 13.15350 | – |
| 2026 Apr 12 17:57 | 2026 Apr 06 14:08:09 | 99.5916 | 0.01752 | 20.9976 | 296.5194 | 173.0363 | 13.15350 | – |
| 2026 Apr 11 17:57 | 2026 Apr 06 14:08:09 | 99.5916 | 0.01752 | 20.9976 | 296.5194 | 173.0363 | 13.15350 | – |
| 2026 Apr 10 17:58 | 2026 Apr 06 14:08:09 | 99.5916 | 0.01752 | 20.9976 | 296.5194 | 173.0363 | 13.15350 | – |
| 2026 Apr 09 18:01 | 2026 Apr 06 14:08:09 | 99.5916 | 0.01752 | 20.9976 | 296.5194 | 173.0363 | 13.15350 | – |
| 2026 Apr 08 17:57 | 2026 Apr 06 14:08:09 | 99.5916 | 0.01752 | 20.9976 | 296.5194 | 173.0363 | 13.15350 | – |
| 2026 Apr 07 17:57 | 2026 Mar 31 03:18:16 | 99.5928 | 0.01757 | 20.6076 | 311.6159 | 173.0363 | 13.15350 | – |
| 2026 Apr 06 17:57 | 2026 Mar 31 03:18:16 | 99.5928 | 0.01757 | 20.6076 | 311.6159 | 173.0363 | 13.15350 | – |
| 2026 Apr 05 17:56 | 2026 Mar 31 03:18:16 | 99.5928 | 0.01757 | 20.6076 | 311.6159 | 173.0363 | 13.15350 | – |
| 2026 Apr 04 17:57 | 2026 Mar 31 03:18:16 | 99.5928 | 0.01757 | 20.6076 | 311.6159 | 173.0363 | 13.15350 | – |
| 2026 Apr 03 17:56 | 2026 Mar 31 03:18:16 | 99.5928 | 0.01757 | 20.6076 | 311.6159 | 173.0363 | 13.15350 | – |