| Primary satellite | Secondary satellite |
| Name | Cosmos 2279 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 23093 | 34758 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 22 14:43 | 2021 Jan 22 09:51 |
| Time of closest approach (UTC) | 2020 Dec 04 01:45:08.536 |
| Minimum distance | 154.625 km |
| Height difference | 10.990 km |
| Relative speed | 11.408 km/s |
| Angle between velocity vectors | 102° |
| Geographic position | 71.8°S, 131.2°E |
| Height | 1002 km |
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