| Primary satellite | Secondary satellite |
| Name | IRIDIUM 138 | CZ-6A DEB |
| Spacetrack catalog number | 43071 | 61822 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:13 | 2024 Dec 20 16:53 |
| Time of closest approach (UTC) | 2024 Dec 26 16:47:05.821 |
| Minimum distance | 4.217 km |
| Height difference | 3.537 km |
| Relative speed | 14.568 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 80.6°N, 3.3°W |
| Height | 790 km |
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