| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 12172 | 40498 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 00:38 | 2024 Dec 20 11:29 |
| Time of closest approach (UTC) | 2024 Dec 26 21:11:04.970 |
| Minimum distance | 2.386 km |
| Height difference | 0.498 km |
| Relative speed | 0.763 km/s |
| Angle between velocity vectors | 6° |
| Geographic position | 81.1°N, 132.3°W |
| Height | 813 km |
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