| Primary satellite | Secondary satellite |
| Name | Cosmos 1634 Rocket | deb Kosmos-2227 |
| Spacetrack catalog number | 15598 | 22408 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 22 20:46 | 2021 Jan 22 10:33 |
| Time of closest approach (UTC) | 2020 Dec 08 22:42:25.212 |
| Minimum distance | 78.590 km |
| Height difference | -4.043 km |
| Relative speed | 11.782 km/s |
| Angle between velocity vectors | 107° |
| Geographic position | 67.4°N, 13.4°W |
| Height | 976 km |
|