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 Mar 15 18:56 | 2026 Mar 15 05:19:01 | 144.5045 | 0.00828 | 16.7566 | 54.5409 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 14 18:56 | 2026 Mar 10 07:50:43 | 144.5037 | 0.00831 | 15.1162 | 19.4715 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 13 18:57 | 2026 Mar 10 07:50:43 | 144.5037 | 0.00831 | 15.1162 | 19.4715 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 12 18:57 | 2026 Mar 10 07:50:43 | 144.5037 | 0.00831 | 15.1162 | 19.4715 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 11 18:56 | 2026 Mar 10 07:50:43 | 144.5037 | 0.00831 | 15.1162 | 19.4715 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 10 18:56 | 2026 Mar 10 07:50:43 | 144.5037 | 0.00831 | 15.1162 | 19.4715 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 09 18:56 | 2026 Mar 04 05:00:18 | 144.5024 | 0.00835 | 13.0659 | 335.8547 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 08 18:57 | 2026 Mar 04 05:00:18 | 144.5024 | 0.00835 | 13.0659 | 335.8547 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 07 18:57 | 2026 Mar 04 05:00:18 | 144.5024 | 0.00835 | 13.0659 | 335.8547 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 06 18:56 | 2026 Mar 04 05:00:18 | 144.5024 | 0.00835 | 13.0659 | 335.8547 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 05 18:56 | 2026 Mar 04 05:00:18 | 144.5024 | 0.00835 | 13.0659 | 335.8547 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 04 18:57 | 2026 Mar 04 05:00:18 | 144.5024 | 0.00835 | 13.0659 | 335.8547 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 03 18:56 | 2026 Feb 26 03:53:34 | 144.5019 | 0.00838 | 11.0398 | 292.9290 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 02 18:57 | 2026 Feb 26 03:53:34 | 144.5019 | 0.00838 | 11.0398 | 292.9290 | 306.2971 | 13.87313 | 8.243 |
| 2026 Mar 01 18:57 | 2026 Feb 26 03:53:34 | 144.5019 | 0.00838 | 11.0398 | 292.9290 | 306.2971 | 13.87313 | 8.243 |
| 2026 Feb 28 18:56 | 2026 Feb 26 03:53:34 | 144.5019 | 0.00838 | 11.0398 | 292.9290 | 306.2971 | 13.87313 | 8.243 |
| 2026 Feb 27 19:05 | 2026 Feb 26 03:53:34 | 144.5019 | 0.00838 | 11.0398 | 292.9290 | 306.2971 | 13.87313 | 8.243 |
| 2026 Feb 26 20:45 | 2026 Feb 26 03:53:34 | 144.5019 | 0.00838 | 11.0398 | 292.9290 | 306.2971 | 13.87313 | 8.243 |