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 | 21501 |
| 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 27 17:57 | 2026 May 26 04:50:02 | 99.8059 | 0.05476 | 3.0427 | 240.1051 | 279.7665 | 12.47821 | – |
| 2026 May 26 17:57 | 2026 May 26 04:50:02 | 99.8059 | 0.05476 | 3.0427 | 240.1051 | 279.7665 | 12.47821 | – |
| 2026 May 25 17:57 | 2026 May 20 04:31:36 | 99.8060 | 0.05476 | 2.7124 | 252.5883 | 279.7665 | 12.47821 | – |
| 2026 May 24 17:57 | 2026 May 20 04:31:36 | 99.8060 | 0.05476 | 2.7124 | 252.5883 | 279.7665 | 12.47821 | – |
| 2026 May 23 17:58 | 2026 May 20 04:31:36 | 99.8060 | 0.05476 | 2.7124 | 252.5883 | 279.7665 | 12.47821 | – |
| 2026 May 22 17:57 | 2026 May 20 04:31:36 | 99.8060 | 0.05476 | 2.7124 | 252.5883 | 279.7665 | 12.47821 | – |
| 2026 May 21 17:57 | 2026 May 20 04:31:36 | 99.8060 | 0.05476 | 2.7124 | 252.5883 | 279.7665 | 12.47821 | – |
| 2026 May 20 17:57 | 2026 May 15 05:12:56 | 99.8104 | 0.05478 | 2.4394 | 262.9014 | 279.7665 | 12.47821 | – |
| 2026 May 19 17:58 | 2026 May 15 05:12:56 | 99.8104 | 0.05478 | 2.4394 | 262.9014 | 279.7665 | 12.47821 | – |
| 2026 May 18 17:57 | 2026 May 15 05:12:56 | 99.8104 | 0.05478 | 2.4394 | 262.9014 | 279.7665 | 12.47821 | – |
| 2026 May 17 17:57 | 2026 May 15 05:12:56 | 99.8104 | 0.05478 | 2.4394 | 262.9014 | 279.7665 | 12.47821 | – |
| 2026 May 16 17:56 | 2026 May 15 05:12:56 | 99.8104 | 0.05478 | 2.4394 | 262.9014 | 279.7665 | 12.47821 | – |
| 2026 May 15 17:57 | 2026 May 09 23:21:19 | 99.8115 | 0.05469 | 2.1512 | 273.7803 | 279.7665 | 12.47821 | – |
| 2026 May 14 17:58 | 2026 May 09 23:21:19 | 99.8115 | 0.05469 | 2.1512 | 273.7803 | 279.7665 | 12.47821 | – |
| 2026 May 13 17:58 | 2026 May 09 23:21:19 | 99.8115 | 0.05469 | 2.1512 | 273.7803 | 279.7665 | 12.47821 | – |
| 2026 May 12 17:58 | 2026 May 09 23:21:19 | 99.8115 | 0.05469 | 2.1512 | 273.7803 | 279.7665 | 12.47821 | – |
| 2026 May 11 17:56 | 2026 May 09 23:21:19 | 99.8115 | 0.05469 | 2.1512 | 273.7803 | 279.7665 | 12.47821 | – |
| 2026 May 10 17:57 | 2026 May 09 23:21:19 | 99.8115 | 0.05469 | 2.1512 | 273.7803 | 279.7665 | 12.47821 | – |
| 2026 May 09 17:57 | 2026 May 02 16:18:09 | 99.8110 | 0.05481 | 1.7503 | 288.9122 | 279.7665 | 12.47821 | – |
| 2026 May 08 17:57 | 2026 May 02 16:18:09 | 99.8110 | 0.05481 | 1.7503 | 288.9122 | 279.7665 | 12.47821 | – |
| 2026 May 07 17:58 | 2026 May 02 16:18:09 | 99.8110 | 0.05481 | 1.7503 | 288.9122 | 279.7665 | 12.47821 | – |
| 2026 May 06 17:57 | 2026 May 02 16:18:09 | 99.8110 | 0.05481 | 1.7503 | 288.9122 | 279.7665 | 12.47821 | – |
| 2026 May 05 17:57 | 2026 May 02 16:18:09 | 99.8110 | 0.05481 | 1.7503 | 288.9122 | 279.7665 | 12.47821 | – |
| 2026 May 04 17:57 | 2026 Apr 30 05:23:12 | 99.8081 | 0.05484 | 1.6156 | 293.9944 | 279.7665 | 12.47821 | – |
| 2026 May 03 17:57 | 2026 Apr 30 05:23:12 | 99.8081 | 0.05484 | 1.6156 | 293.9944 | 279.7665 | 12.47821 | – |
| 2026 May 02 17:57 | 2026 Apr 30 05:23:12 | 99.8081 | 0.05484 | 1.6156 | 293.9944 | 279.7665 | 12.47821 | – |
| 2026 May 01 17:56 | 2026 Apr 30 05:23:12 | 99.8081 | 0.05484 | 1.6156 | 293.9944 | 279.7665 | 12.47821 | – |
| 2026 Apr 30 17:56 | 2026 Apr 30 05:23:12 | 99.8081 | 0.05484 | 1.6156 | 293.9944 | 279.7665 | 12.47821 | – |