| Primary satellite | Secondary satellite |
| Name | deb r/b (DELTA) | COSMOS 2251 DEB |
| Spacetrack catalog number | 18467 | 34588 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 12:24 | 2024 Dec 23 00:00 |
| Time of closest approach (UTC) | 2024 Dec 29 20:33:54.673 |
| Minimum distance | 4.000 km |
| Height difference | 4.000 km |
| Relative speed | 14.972 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 17.7°N, 150.1°E |
| Height | 746 km |
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