| Primary satellite | Secondary satellite |
| Name | CAS-4A | COSMOS 2251 DEB |
| Spacetrack catalog number | 42761 | 35291 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2022 Aug 10 05:30 | 2022 Aug 09 06:31 |
| Time of closest approach (UTC) | 2022 Jul 02 18:02:41.847 |
| Minimum distance | 329.903 km |
| Height difference | -1.539 km |
| Relative speed | 12.734 km/s |
| Angle between velocity vectors | 114° |
| Geographic position | 18.5°N, 145.1°W |
| Height | 533 km |
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