| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | NOAA 16 DEB |
| Spacetrack catalog number | 37530 | 41532 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 01:13 | 2024 Dec 22 05:24 |
| Time of closest approach (UTC) | 2024 Dec 27 06:13:27.359 |
| Minimum distance | 4.766 km |
| Height difference | -3.943 km |
| Relative speed | 14.755 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 59.0°S, 86.1°W |
| Height | 819 km |
|