| Primary satellite | Secondary satellite |
| Name | CZ-6A DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 56241 | 34882 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2026 Jan 17 04:23 | 2026 Jan 17 08:54 |
| Time of closest approach (UTC) | 2025 Dec 05 22:23:26.767 |
| Minimum distance | 155.864 km |
| Height difference | 1.305 km |
| Relative speed | 15.104 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 14.8°S, 177.9°W |
| Height | 638 km |
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