| Primary satellite | Secondary satellite |
| Name | RS-13 | COSMOS 2251 DEB |
| Spacetrack catalog number | 21089 | 34346 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 May 25 16:21 | 2022 May 25 19:40 |
| Time of closest approach (UTC) | 2022 Jan 25 22:10:19.094 |
| Minimum distance | 1434.483 km |
| Height difference | -43.830 km |
| Relative speed | 13.777 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 70.9°S, 30.9°W |
| Height | 1031 km |
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