| Primary satellite | Secondary satellite |
| Name | Cosmos 372 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 4589 | 34064 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 25 18:44 | 2021 Jan 25 19:06 |
| Time of closest approach (UTC) | 2020 Dec 03 14:30:48.149 |
| Minimum distance | 9.369 km |
| Height difference | 3.894 km |
| Relative speed | 9.863 km/s |
| Angle between velocity vectors | 83° |
| Geographic position | 68.6°S, 73.2°E |
| Height | 790 km |
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