| Primary satellite | Secondary satellite |
| Name | CZ-2C R/B | COSMOS 2251 DEB |
| Spacetrack catalog number | 36089 | 34908 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Nov 28 19:56 | 2023 Nov 29 09:40 |
| Time of closest approach (UTC) | 2023 Sep 30 23:43:26.121 |
| Minimum distance | 6.881 km |
| Height difference | 3.657 km |
| Relative speed | 14.864 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 15.7°S, 125.9°W |
| Height | 781 km |
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