| Primary satellite | Secondary satellite |
| Name | IRIDIUM 138 | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 43071 | 42259 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:13 | 2024 Dec 21 00:34 |
| Time of closest approach (UTC) | 2024 Dec 27 14:35:05.150 |
| Minimum distance | 3.278 km |
| Height difference | 1.519 km |
| Relative speed | 14.712 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 74.0°N, 38.0°E |
| Height | 789 km |
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