| Primary satellite | Secondary satellite |
| Name | Cosmos 1328 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 12988 | 47059 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 13:29 | 2024 Dec 18 23:17 |
| Time of closest approach (UTC) | 2024 Dec 28 16:44:05.595 |
| Minimum distance | 3.325 km |
| Height difference | -3.323 km |
| Relative speed | 14.211 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 53.6°N, 32.5°E |
| Height | 610 km |
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