| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DELTA 1 DEB |
| Spacetrack catalog number | 34459 | 37641 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 09:30 | 2024 Dec 22 07:13 |
| Time of closest approach (UTC) | 2024 Dec 24 14:14:27.317 |
| Minimum distance | 4.814 km |
| Height difference | 3.175 km |
| Relative speed | 13.624 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 74.0°S, 99.3°E |
| Height | 800 km |
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