| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | SJ-11-01 |
| Spacetrack catalog number | 34115 | 36088 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:46 | 2024 Dec 23 11:55 |
| Time of closest approach (UTC) | 2024 Dec 29 13:02:28.373 |
| Minimum distance | 4.397 km |
| Height difference | 0.254 km |
| Relative speed | 14.381 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 71.2°S, 146.2°W |
| Height | 705 km |
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