| Primary satellite | Secondary satellite |
| Name | STARS | COSMOS 2251 DEB |
| Spacetrack catalog number | 33498 | 35602 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2022 Aug 07 16:46 | 2022 Aug 07 17:09 |
| Time of closest approach (UTC) | 2022 Jun 28 00:20:21.213 |
| Minimum distance | 60.255 km |
| Height difference | -4.703 km |
| Relative speed | 14.257 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 73.1°N, 122.0°E |
| Height | 649 km |
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