| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Agena D |
| Spacetrack catalog number | 35433 | 4856 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 18 02:11 | 2024 Dec 22 16:25 |
| Time of closest approach (UTC) | 2024 Dec 28 10:34:59.841 |
| Minimum distance | 1.526 km |
| Height difference | -1.511 km |
| Relative speed | 14.932 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 36.8°N, 169.7°E |
| Height | 787 km |
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