| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | VESSELSAT 1 |
| Spacetrack catalog number | 12172 | 37840 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 00:38 | 2024 Dec 23 09:41 |
| Time of closest approach (UTC) | 2024 Dec 27 00:55:00.331 |
| Minimum distance | 4.611 km |
| Height difference | -3.421 km |
| Relative speed | 9.791 km/s |
| Angle between velocity vectors | 83° |
| Geographic position | 11.5°N, 91.9°E |
| Height | 849 km |
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