| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | NOAA 16 DEB |
| Spacetrack catalog number | 35671 | 41503 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:45 | 2024 Dec 20 04:04 |
| Time of closest approach (UTC) | 2024 Dec 28 13:38:34.799 |
| Minimum distance | 3.039 km |
| Height difference | -2.237 km |
| Relative speed | 11.640 km/s |
| Angle between velocity vectors | 103° |
| Geographic position | 73.2°N, 141.7°E |
| Height | 776 km |
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