| Primary satellite | Secondary satellite |
| Name | Cosmos 1626 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 15495 | 37492 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 May 21 21:45 | 2022 May 21 16:50 |
| Time of closest approach (UTC) | 2022 Jan 29 04:15:38.819 |
| Minimum distance | 1026.200 km |
| Height difference | -5.974 km |
| Relative speed | 14.312 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 64.4°N, 129.5°W |
| Height | 629 km |
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