| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 23088 | 34018 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 01 22:08 | 2023 Oct 01 16:24 |
| Time of closest approach (UTC) | 2023 Jun 12 05:54:02.325 |
| Minimum distance | 1401.405 km |
| Height difference | -43.621 km |
| Relative speed | 14.329 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 8.6°N, 158.2°W |
| Height | 847 km |
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