| Primary satellite | Secondary satellite |
| Name | NOAA 6 | COSMOS 2251 DEB |
| Spacetrack catalog number | 11416 | 40218 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 25 17:49 | 2021 Jan 24 23:58 |
| Time of closest approach (UTC) | 2020 Dec 03 12:17:45.598 |
| Minimum distance | 27.845 km |
| Height difference | -1.971 km |
| Relative speed | 7.299 km/s |
| Angle between velocity vectors | 58° |
| Geographic position | 63.8°N, 81.8°W |
| Height | 784 km |
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