| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Iridium 63 |
| Spacetrack catalog number | 34913 | 25286 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 07:23 | 2024 Dec 22 20:48 |
| Time of closest approach (UTC) | 2024 Dec 25 07:49:44.300 |
| Minimum distance | 1.852 km |
| Height difference | 1.758 km |
| Relative speed | 6.754 km/s |
| Angle between velocity vectors | 54° |
| Geographic position | 72.5°N, 111.8°E |
| Height | 780 km |
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