| Primary satellite | Secondary satellite |
| Name | DELTA 1 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 42661 | 34064 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 16:34 | 2024 Dec 22 13:26 |
| Time of closest approach (UTC) | 2024 Dec 27 16:18:03.550 |
| Minimum distance | 4.860 km |
| Height difference | -4.816 km |
| Relative speed | 14.522 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 70.0°S, 166.9°E |
| Height | 782 km |
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