| Primary satellite | Secondary satellite |
| Name | CZ-6A DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 56241 | 37498 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2026 Jan 17 04:23 | 2026 Jan 16 23:25 |
| Time of closest approach (UTC) | 2025 Dec 06 05:20:59.699 |
| Minimum distance | 499.455 km |
| Height difference | 10.524 km |
| Relative speed | 14.141 km/s |
| Angle between velocity vectors | 141° |
| Geographic position | 77.9°S, 54.0°W |
| Height | 718 km |
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