| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DELTA 1 DEB |
| Spacetrack catalog number | 33986 | 27726 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:32 | 2024 Dec 20 13:22 |
| Time of closest approach (UTC) | 2024 Dec 24 12:56:34.390 |
| Minimum distance | 4.857 km |
| Height difference | -1.348 km |
| Relative speed | 14.570 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 67.6°S, 93.7°W |
| Height | 793 km |
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