| Primary satellite | Secondary satellite |
| Name | DELTA 1 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 42661 | 34967 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 16:34 | 2024 Dec 18 20:56 |
| Time of closest approach (UTC) | 2024 Dec 29 04:49:51.304 |
| Minimum distance | 2.649 km |
| Height difference | 2.160 km |
| Relative speed | 14.860 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 46.9°S, 5.4°W |
| Height | 774 km |
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