| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FW4S |
| Spacetrack catalog number | 33899 | 6180 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 12:32 | 2024 Dec 22 17:10 |
| Time of closest approach (UTC) | 2024 Dec 23 17:41:10.982 |
| Minimum distance | 2.030 km |
| Height difference | -1.882 km |
| Relative speed | 14.920 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 10.2°N, 141.2°W |
| Height | 665 km |
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