| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | DMSP-16 (USA 172) |
| Spacetrack catalog number | 13563 | 28054 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:28 | 2024 Dec 23 08:34 |
| Time of closest approach (UTC) | 2024 Dec 27 22:00:20.868 |
| Minimum distance | 4.479 km |
| Height difference | -1.930 km |
| Relative speed | 0.152 km/s |
| Angle between velocity vectors | 1° |
| Geographic position | 78.8°S, 2.7°W |
| Height | 872 km |
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