| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | NOAA 16 DEB |
| Spacetrack catalog number | 35453 | 41400 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 15:23 | 2024 Dec 22 11:13 |
| Time of closest approach (UTC) | 2024 Dec 29 19:10:24.918 |
| Minimum distance | 4.245 km |
| Height difference | 4.064 km |
| Relative speed | 14.265 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 71.8°S, 145.2°W |
| Height | 826 km |
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