| 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 13 22:02 | 2022 Aug 13 21:22 |
| Time of closest approach (UTC) | 2022 Jun 28 00:20:25.514 |
| Minimum distance | 137.550 km |
| Height difference | -6.765 km |
| Relative speed | 14.261 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 74.0°N, 120.3°E |
| Height | 649 km |
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