| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Agena D |
| Spacetrack catalog number | 34885 | 4231 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:12 | 2024 Dec 22 05:18 |
| Time of closest approach (UTC) | 2024 Dec 26 00:35:25.048 |
| Minimum distance | 4.812 km |
| Height difference | 4.635 km |
| Relative speed | 14.071 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 25.5°N, 167.8°W |
| Height | 743 km |
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