| Primary satellite | Secondary satellite |
| Name | YAOGAN 29 | Cosmos 1666 Rocket |
| Spacetrack catalog number | 41038 | 15890 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 08:45 | 2024 Dec 23 02:26 |
| Time of closest approach (UTC) | 2024 Dec 25 23:32:56.110 |
| Minimum distance | 4.546 km |
| Height difference | -2.864 km |
| Relative speed | 14.999 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 81.7°S, 2.3°E |
| Height | 651 km |
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