| Primary satellite | Secondary satellite |
| Name | NOAA 19 | COSMOS 2251 DEB |
| Spacetrack catalog number | 33591 | 34431 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 06 03:04 | 2021 Mar 05 17:50 |
| Time of closest approach (UTC) | 2021 Jan 21 10:36:06.297 |
| Minimum distance | 14.398 km |
| Height difference | -1.941 km |
| Relative speed | 12.180 km/s |
| Angle between velocity vectors | 110° |
| Geographic position | 73.7°N, 28.1°W |
| Height | 862 km |
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