| Primary satellite | Secondary satellite |
| Name | IRIDIUM 174 | COSMOS 2251 DEB |
| Spacetrack catalog number | 56728 | 33830 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:59 | 2024 Dec 23 00:56 |
| Time of closest approach (UTC) | 2024 Dec 26 05:17:14.712 |
| Minimum distance | 3.081 km |
| Height difference | -0.074 km |
| Relative speed | 3.899 km/s |
| Angle between velocity vectors | 30° |
| Geographic position | 63.9°N, 57.5°E |
| Height | 638 km |
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