| Primary satellite | Secondary satellite |
| Name | NOAA 6 | COSMOS 2251 DEB |
| Spacetrack catalog number | 11416 | 33762 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 14 12:56 | 2021 Apr 14 14:32 |
| Time of closest approach (UTC) | 2021 Mar 06 08:30:28.702 |
| Minimum distance | 1.507 km |
| Height difference | 1.402 km |
| Relative speed | 14.901 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 20.1°S, 44.6°W |
| Height | 779 km |
|