| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | NIGERIASAT 2 |
| Spacetrack catalog number | 34115 | 37789 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:46 | 2024 Dec 23 09:28 |
| Time of closest approach (UTC) | 2024 Dec 28 09:17:52.181 |
| Minimum distance | 4.884 km |
| Height difference | 2.638 km |
| Relative speed | 14.202 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 72.1°S, 92.0°W |
| Height | 704 km |
|