Orbital elements of OV1-4
| Launched | 29 March 1966 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 2121 |
| 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 24 17:57 | 2026 May 21 10:47:11 | 144.5025 | 0.00831 | 15.2862 | 175.0863 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 23 17:58 | 2026 May 21 10:47:11 | 144.5025 | 0.00831 | 15.2862 | 175.0863 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 22 17:57 | 2026 May 21 10:47:11 | 144.5025 | 0.00831 | 15.2862 | 175.0863 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 21 17:57 | 2026 May 21 10:47:11 | 144.5025 | 0.00831 | 15.2862 | 175.0863 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 20 17:57 | 2026 May 16 09:51:55 | 144.5022 | 0.00827 | 13.5978 | 139.0089 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 19 17:58 | 2026 May 16 09:51:55 | 144.5022 | 0.00827 | 13.5978 | 139.0089 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 18 17:57 | 2026 May 16 09:51:55 | 144.5022 | 0.00827 | 13.5978 | 139.0089 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 17 17:57 | 2026 May 16 09:51:55 | 144.5022 | 0.00827 | 13.5978 | 139.0089 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 16 17:56 | 2026 May 16 09:51:55 | 144.5022 | 0.00827 | 13.5978 | 139.0089 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 15 17:57 | 2026 May 10 08:45:29 | 144.5023 | 0.00825 | 11.5717 | 95.5691 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 14 17:58 | 2026 May 10 08:45:29 | 144.5023 | 0.00825 | 11.5717 | 95.5691 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 13 17:58 | 2026 May 10 08:45:29 | 144.5023 | 0.00825 | 11.5717 | 95.5691 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 12 17:58 | 2026 May 10 08:45:29 | 144.5023 | 0.00825 | 11.5717 | 95.5691 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 11 17:56 | 2026 May 10 08:45:29 | 144.5023 | 0.00825 | 11.5717 | 95.5691 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 10 17:57 | 2026 May 10 08:45:29 | 144.5023 | 0.00825 | 11.5717 | 95.5691 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 09 17:57 | 2026 May 05 13:00:58 | 144.5023 | 0.00826 | 9.9556 | 60.8889 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 08 17:57 | 2026 May 05 13:00:58 | 144.5023 | 0.00826 | 9.9556 | 60.8889 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 07 17:58 | 2026 May 05 13:00:58 | 144.5023 | 0.00826 | 9.9556 | 60.8889 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 06 17:57 | 2026 May 05 13:00:58 | 144.5023 | 0.00826 | 9.9556 | 60.8889 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 05 17:57 | 2026 May 05 13:00:58 | 144.5023 | 0.00826 | 9.9556 | 60.8889 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 04 17:57 | 2026 Apr 30 13:49:04 | 144.5022 | 0.00829 | 8.2912 | 25.2230 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 03 17:57 | 2026 Apr 30 13:49:04 | 144.5022 | 0.00829 | 8.2912 | 25.2230 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 02 17:57 | 2026 Apr 30 13:49:04 | 144.5022 | 0.00829 | 8.2912 | 25.2230 | 185.0634 | 13.87322 | 8.243 |
| 2026 May 01 17:56 | 2026 Apr 30 13:49:04 | 144.5022 | 0.00829 | 8.2912 | 25.2230 | 185.0634 | 13.87322 | 8.243 |
| 2026 Apr 30 17:56 | 2026 Apr 30 13:49:04 | 144.5022 | 0.00829 | 8.2912 | 25.2230 | 185.0634 | 13.87322 | 8.243 |
| 2026 Apr 29 17:57 | 2026 Apr 24 10:58:41 | 144.5028 | 0.00834 | 6.2408 | 341.4959 | 185.0634 | 13.87322 | 8.243 |
| 2026 Apr 28 17:56 | 2026 Apr 24 10:58:41 | 144.5028 | 0.00834 | 6.2408 | 341.4959 | 185.0634 | 13.87322 | 8.243 |
| 2026 Apr 27 17:58 | 2026 Apr 24 10:58:41 | 144.5028 | 0.00834 | 6.2408 | 341.4959 | 185.0634 | 13.87322 | 8.243 |