| Primary satellite | Secondary satellite |
| Name | IRIDIUM 152 | COSMOS 2251 DEB |
| Spacetrack catalog number | 43479 | 36064 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 03 10:28 | 2023 Dec 02 19:23 |
| Time of closest approach (UTC) | 2022 Oct 12 23:05:10.132 |
| Minimum distance | 2340.270 km |
| Height difference | -82.473 km |
| Relative speed | 14.760 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 85.4°S, 129.1°W |
| Height | 808 km |
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