| Primary satellite | Secondary satellite |
| Name | IRIDIUM 138 | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 43071 | 40612 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:13 | 2024 Dec 22 00:11 |
| Time of closest approach (UTC) | 2024 Dec 26 05:56:37.047 |
| Minimum distance | 3.932 km |
| Height difference | 3.111 km |
| Relative speed | 14.726 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 71.9°S, 8.9°W |
| Height | 805 km |
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