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 | 21291 |
| 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 |
| 2025 Dec 28 18:57 | 2025 Dec 26 08:47:37 | 99.8643 | 0.01377 | 10.0560 | 140.0961 | 252.9310 | 13.83209 | – |
| 2025 Dec 27 18:57 | 2025 Dec 26 08:47:37 | 99.8643 | 0.01377 | 10.0560 | 140.0961 | 252.9310 | 13.83209 | – |
| 2025 Dec 26 18:56 | 2025 Dec 26 08:47:37 | 99.8643 | 0.01377 | 10.0560 | 140.0961 | 252.9310 | 13.83209 | – |
| 2025 Dec 25 18:57 | 2025 Dec 19 00:10:52 | 99.8639 | 0.01376 | 9.5419 | 159.2502 | 252.9310 | 13.83209 | – |
| 2025 Dec 24 18:56 | 2025 Dec 19 00:10:52 | 99.8639 | 0.01376 | 9.5419 | 159.2502 | 252.9310 | 13.83209 | – |
| 2025 Dec 23 18:56 | 2025 Dec 19 00:10:52 | 99.8639 | 0.01376 | 9.5419 | 159.2502 | 252.9310 | 13.83209 | – |
| 2025 Dec 22 18:57 | 2025 Dec 19 00:10:52 | 99.8639 | 0.01376 | 9.5419 | 159.2502 | 252.9310 | 13.83209 | – |
| 2025 Dec 21 18:57 | 2025 Dec 19 00:10:52 | 99.8639 | 0.01376 | 9.5419 | 159.2502 | 252.9310 | 13.83209 | – |
| 2025 Dec 20 18:57 | 2025 Dec 19 00:10:52 | 99.8639 | 0.01376 | 9.5419 | 159.2502 | 252.9310 | 13.83209 | – |
| 2025 Dec 19 18:57 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 18 18:57 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 17 18:58 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 16 18:57 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 15 18:58 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 14 18:56 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 13 18:56 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 12 18:57 | 2025 Dec 11 23:45:29 | 99.8636 | 0.01375 | 9.0516 | 177.5381 | 252.9310 | 13.83209 | – |
| 2025 Dec 11 18:56 | 2025 Dec 06 22:23:09 | 99.8636 | 0.01375 | 8.6983 | 190.7117 | 252.9310 | 13.83209 | – |
| 2025 Dec 10 18:56 | 2025 Dec 06 22:23:09 | 99.8636 | 0.01375 | 8.6983 | 190.7117 | 252.9310 | 13.83209 | – |
| 2025 Dec 09 18:56 | 2025 Dec 06 22:23:09 | 99.8636 | 0.01375 | 8.6983 | 190.7117 | 252.9310 | 13.83209 | – |
| 2025 Dec 08 18:56 | 2025 Dec 06 22:23:09 | 99.8636 | 0.01375 | 8.6983 | 190.7117 | 252.9310 | 13.83209 | – |
| 2025 Dec 07 18:56 | 2025 Dec 06 22:23:09 | 99.8636 | 0.01375 | 8.6983 | 190.7117 | 252.9310 | 13.83209 | – |
| 2025 Dec 06 18:56 | 2025 Dec 01 08:18:17 | 99.8635 | 0.01374 | 8.3080 | 205.2790 | 252.9310 | 13.83209 | – |
| 2025 Dec 05 18:57 | 2025 Dec 01 08:18:17 | 99.8635 | 0.01374 | 8.3080 | 205.2790 | 252.9310 | 13.83209 | – |
| 2025 Dec 04 18:57 | 2025 Dec 01 08:18:17 | 99.8635 | 0.01374 | 8.3080 | 205.2790 | 252.9310 | 13.83209 | – |
| 2025 Dec 03 18:56 | 2025 Dec 01 08:18:17 | 99.8635 | 0.01374 | 8.3080 | 205.2790 | 252.9310 | 13.83209 | – |
| 2025 Dec 02 18:56 | 2025 Dec 01 08:18:17 | 99.8635 | 0.01374 | 8.3080 | 205.2790 | 252.9310 | 13.83209 | – |