| Primary satellite | Secondary satellite |
| Name | STARS | COSMOS 2251 DEB |
| Spacetrack catalog number | 33498 | 35019 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2022 Aug 13 22:02 | 2022 Aug 13 05:15 |
| Time of closest approach (UTC) | 2022 Jun 29 11:10:32.952 |
| Minimum distance | 2260.669 km |
| Height difference | 5.217 km |
| Relative speed | 5.972 km/s |
| Angle between velocity vectors | 47° |
| Geographic position | 64.0°S, 150.5°E |
| Height | 646 km |
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