| Primary satellite | Secondary satellite |
| Name | Cosmos 1666 | TIANPING 1A |
| Spacetrack catalog number | 15889 | 43712 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Jan 30 23:16 | 2023 Jan 31 10:50 |
| Time of closest approach (UTC) | 2022 Dec 05 11:33:39.224 |
| Minimum distance | 11.764 km |
| Height difference | 1.298 km |
| Relative speed | 15.212 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 82.2°S, 151.9°W |
| Height | 512 km |
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