| Primary satellite | Secondary satellite |
| Name | DELTA 1 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 42661 | 34005 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 16:34 | 2024 Dec 22 20:56 |
| Time of closest approach (UTC) | 2024 Dec 26 12:08:54.762 |
| Minimum distance | 3.919 km |
| Height difference | 1.966 km |
| Relative speed | 14.425 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 71.1°S, 100.9°E |
| Height | 782 km |
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