| Primary satellite | Secondary satellite |
| Name | CAS-4A | COSMOS 2251 DEB |
| Spacetrack catalog number | 42761 | 35592 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Oct 08 17:52 | 2024 Oct 08 09:56 |
| Time of closest approach (UTC) | 2024 Sep 18 15:40:57.874 |
| Minimum distance | 4102.474 km |
| Height difference | 62.583 km |
| Relative speed | 13.572 km/s |
| Angle between velocity vectors | 126° |
| Geographic position | 8.3°S, 10.4°E |
| Height | 470 km |
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