| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | IRIDIUM 33 DEB |
| Spacetrack catalog number | 35671 | 37562 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:45 | 2024 Dec 22 07:51 |
| Time of closest approach (UTC) | 2024 Dec 25 19:42:18.155 |
| Minimum distance | 4.911 km |
| Height difference | -4.244 km |
| Relative speed | 14.736 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 6.7°N, 166.4°E |
| Height | 743 km |
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