| Primary satellite | Secondary satellite |
| Name | CZ-2C R/B | COSMOS 2251 DEB |
| Spacetrack catalog number | 28480 | 35660 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Sep 17 19:42 | 2024 Sep 17 09:21 |
| Time of closest approach (UTC) | 2024 Aug 12 13:49:51.847 |
| Minimum distance | 705.938 km |
| Height difference | 18.653 km |
| Relative speed | 14.762 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 78.8°N, 137.0°W |
| Height | 745 km |
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