| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Cosmos 1302 Rocket |
| Spacetrack catalog number | 34913 | 12792 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 07:23 | 2024 Dec 23 04:09 |
| Time of closest approach (UTC) | 2024 Dec 23 21:47:31.197 |
| Minimum distance | 3.460 km |
| Height difference | -0.711 km |
| Relative speed | 14.243 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 23.1°S, 144.1°E |
| Height | 780 km |
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