| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | IRIDIUM 134 |
| Spacetrack catalog number | 12172 | 43075 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 00:38 | 2024 Dec 22 13:59 |
| Time of closest approach (UTC) | 2024 Dec 24 10:04:46.574 |
| Minimum distance | 1.230 km |
| Height difference | 0.285 km |
| Relative speed | 14.882 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 60.8°N, 116.6°E |
| Height | 787 km |
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