| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | Cosmos 1066 Rocket |
| Spacetrack catalog number | 12168 | 11166 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 13:02 | 2024 Dec 23 03:37 |
| Time of closest approach (UTC) | 2024 Dec 25 09:32:13.363 |
| Minimum distance | 3.404 km |
| Height difference | -1.433 km |
| Relative speed | 14.851 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 81.3°S, 42.7°E |
| Height | 874 km |
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