| Primary satellite | Secondary satellite |
| Name | CZ-6A DEB | Cosmos 1666 Rocket |
| Spacetrack catalog number | 54475 | 15890 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 15:58 | 2024 Dec 23 02:26 |
| Time of closest approach (UTC) | 2024 Dec 27 23:17:28.934 |
| Minimum distance | 4.282 km |
| Height difference | 3.897 km |
| Relative speed | 14.965 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 81.1°N, 118.2°W |
| Height | 613 km |
|