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 Jun 23 17:56 | 2026 Jun 22 04:42:08 | 99.7831 | 0.01053 | 4.5039 | 301.0638 | 211.8468 | 13.24628 | – |
| 2026 Jun 22 17:56 | 2026 Jun 16 15:57:13 | 99.7831 | 0.01056 | 4.1574 | 314.1749 | 211.8468 | 13.24628 | – |
| 2026 Jun 21 17:57 | 2026 Jun 16 15:57:13 | 99.7831 | 0.01056 | 4.1574 | 314.1749 | 211.8468 | 13.24628 | – |
| 2026 Jun 20 17:56 | 2026 Jun 16 15:57:13 | 99.7831 | 0.01056 | 4.1574 | 314.1749 | 211.8468 | 13.24628 | – |
| 2026 Jun 19 17:57 | 2026 Jun 16 15:57:13 | 99.7831 | 0.01056 | 4.1574 | 314.1749 | 211.8468 | 13.24628 | – |
| 2026 Jun 18 17:56 | 2026 Jun 16 15:57:13 | 99.7831 | 0.01056 | 4.1574 | 314.1749 | 211.8468 | 13.24628 | – |
| 2026 Jun 17 17:57 | 2026 Jun 16 15:57:13 | 99.7831 | 0.01056 | 4.1574 | 314.1749 | 211.8468 | 13.24628 | – |
| 2026 Jun 16 17:55 | 2026 Jun 12 05:17:50 | 99.7843 | 0.01057 | 3.8792 | 324.7674 | 211.8468 | 13.24628 | – |
| 2026 Jun 15 17:56 | 2026 Jun 12 05:17:50 | 99.7843 | 0.01057 | 3.8792 | 324.7674 | 211.8468 | 13.24628 | – |
| 2026 Jun 14 17:57 | 2026 Jun 12 05:17:50 | 99.7843 | 0.01057 | 3.8792 | 324.7674 | 211.8468 | 13.24628 | – |
| 2026 Jun 13 17:56 | 2026 Jun 12 05:17:50 | 99.7843 | 0.01057 | 3.8792 | 324.7674 | 211.8468 | 13.24628 | – |
| 2026 Jun 12 17:56 | 2026 Jun 12 05:17:50 | 99.7843 | 0.01057 | 3.8792 | 324.7674 | 211.8468 | 13.24628 | – |
| 2026 Jun 11 17:57 | 2026 Jun 06 16:36:30 | 99.7848 | 0.01060 | 3.5329 | 337.8843 | 211.8468 | 13.24628 | – |
| 2026 Jun 10 17:56 | 2026 Jun 06 16:36:30 | 99.7848 | 0.01060 | 3.5329 | 337.8843 | 211.8468 | 13.24628 | – |
| 2026 Jun 09 17:57 | 2026 Jun 06 16:36:30 | 99.7848 | 0.01060 | 3.5329 | 337.8843 | 211.8468 | 13.24628 | – |
| 2026 Jun 08 17:56 | 2026 Jun 06 16:36:30 | 99.7848 | 0.01060 | 3.5329 | 337.8843 | 211.8468 | 13.24628 | – |
| 2026 Jun 07 17:56 | 2026 Jun 06 16:36:30 | 99.7848 | 0.01060 | 3.5329 | 337.8843 | 211.8468 | 13.24628 | – |
| 2026 Jun 06 17:56 | 2026 May 31 06:53:06 | 99.7856 | 0.01063 | 3.1317 | 352.9866 | 211.8468 | 13.24628 | – |
| 2026 Jun 05 17:56 | 2026 May 31 06:53:06 | 99.7856 | 0.01063 | 3.1317 | 352.9866 | 211.8468 | 13.24628 | – |
| 2026 Jun 04 17:57 | 2026 May 31 06:53:06 | 99.7856 | 0.01063 | 3.1317 | 352.9866 | 211.8468 | 13.24628 | – |
| 2026 Jun 02 17:56 | 2026 May 31 06:53:06 | 99.7856 | 0.01063 | 3.1317 | 352.9866 | 211.8468 | 13.24628 | – |
| 2026 Jun 01 17:57 | 2026 May 31 06:53:06 | 99.7856 | 0.01063 | 3.1317 | 352.9866 | 211.8468 | 13.24628 | – |
| 2026 May 31 17:58 | 2026 May 31 06:53:06 | 99.7856 | 0.01063 | 3.1317 | 352.9866 | 211.8468 | 13.24628 | – |
| 2026 May 30 17:57 | 2026 May 26 05:25:04 | 99.7859 | 0.01065 | 2.8146 | 4.9170 | 211.8468 | 13.24628 | – |
| 2026 May 29 17:57 | 2026 May 26 05:25:04 | 99.7859 | 0.01065 | 2.8146 | 4.9170 | 211.8468 | 13.24628 | – |
| 2026 May 28 17:56 | 2026 May 26 05:25:04 | 99.7859 | 0.01065 | 2.8146 | 4.9170 | 211.8468 | 13.24628 | – |
| 2026 May 27 17:57 | 2026 May 26 05:25:04 | 99.7859 | 0.01065 | 2.8146 | 4.9170 | 211.8468 | 13.24628 | – |