| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | NIMBUS 2 DEB |
| Spacetrack catalog number | 34910 | 28200 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:21 | 2024 Dec 22 19:08 |
| Time of closest approach (UTC) | 2024 Dec 29 13:00:43.691 |
| Minimum distance | 4.560 km |
| Height difference | 1.074 km |
| Relative speed | 14.436 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 30.3°S, 173.4°W |
| Height | 1192 km |
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