| Primary satellite | Secondary satellite |
| Name | Cosmos 372 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 4589 | 35446 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 25 18:44 | 2021 Jan 25 09:58 |
| Time of closest approach (UTC) | 2020 Dec 07 03:33:00.845 |
| Minimum distance | 38.713 km |
| Height difference | -2.665 km |
| Relative speed | 5.166 km/s |
| Angle between velocity vectors | 41° |
| Geographic position | 73.0°S, 67.0°W |
| Height | 785 km |
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