| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | IRIDIUM 147 |
| Spacetrack catalog number | 34430 | 43480 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:42 | 2024 Dec 23 09:39 |
| Time of closest approach (UTC) | 2024 Dec 30 01:54:18.287 |
| Minimum distance | 4.118 km |
| Height difference | 2.003 km |
| Relative speed | 10.198 km/s |
| Angle between velocity vectors | 86° |
| Geographic position | 73.9°S, 16.4°E |
| Height | 804 km |
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