| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | Star 26B S/N 004? |
| Spacetrack catalog number | 12172 | 6788 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 00:38 | 2024 Dec 23 03:53 |
| Time of closest approach (UTC) | 2024 Dec 26 17:08:39.044 |
| Minimum distance | 2.817 km |
| Height difference | -0.166 km |
| Relative speed | 14.435 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 52.7°S, 38.4°E |
| Height | 810 km |
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