| Primary satellite | Secondary satellite |
| Name | STARS | COSMOS 2251 DEB |
| Spacetrack catalog number | 33498 | 34012 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2022 Aug 07 11:53 | 2022 Aug 07 08:26 |
| Time of closest approach (UTC) | 2022 Jul 01 00:35:08.884 |
| Minimum distance | 879.751 km |
| Height difference | -5.346 km |
| Relative speed | 13.762 km/s |
| Angle between velocity vectors | 132° |
| Geographic position | 80.3°S, 89.9°W |
| Height | 653 km |
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