| Primary satellite | Secondary satellite |
| Name | Cosmos 44 | COSMOS 2251 DEB |
| Spacetrack catalog number | 876 | 34965 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 22 02:01 | 2023 Sep 21 06:39 |
| Time of closest approach (UTC) | 2023 May 31 14:01:28.150 |
| Minimum distance | 2775.921 km |
| Height difference | 27.501 km |
| Relative speed | 6.490 km/s |
| Angle between velocity vectors | 51° |
| Geographic position | 61.6°N, 30.9°W |
| Height | 705 km |
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