| Primary satellite | Secondary satellite |
| Name | IRIDIUM 152 | COSMOS 2251 DEB |
| Spacetrack catalog number | 43479 | 36367 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:27 | 2024 Dec 18 01:15 |
| Time of closest approach (UTC) | 2024 Dec 23 15:57:10.857 |
| Minimum distance | 2.989 km |
| Height difference | -0.686 km |
| Relative speed | 14.392 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 52.5°S, 22.5°W |
| Height | 799 km |
|