| Primary satellite | Secondary satellite |
| Name | NOAA 16 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 42423 | 34139 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 19:14 | 2024 Dec 22 15:54 |
| Time of closest approach (UTC) | 2024 Dec 28 00:16:25.938 |
| Minimum distance | 4.390 km |
| Height difference | -4.365 km |
| Relative speed | 8.745 km/s |
| Angle between velocity vectors | 71° |
| Geographic position | 68.0°S, 51.3°E |
| Height | 738 km |
|