| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CZ-4 R/B DEB |
| Spacetrack catalog number | 34588 | 37622 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:00 | 2024 Dec 23 01:14 |
| Time of closest approach (UTC) | 2024 Dec 26 00:16:41.822 |
| Minimum distance | 1.440 km |
| Height difference | 1.250 km |
| Relative speed | 14.749 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 61.1°S, 48.9°W |
| Height | 781 km |
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