| Primary satellite | Secondary satellite |
| Name | Cosmos 1666 Rocket | CZ-2D DEB |
| Spacetrack catalog number | 15890 | 44612 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 Jul 01 13:01 | 2022 Jul 01 09:22 |
| Time of closest approach (UTC) | 2022 May 28 09:35:10.094 |
| Minimum distance | 7.701 km |
| Height difference | 1.771 km |
| Relative speed | 15.055 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 81.4°S, 79.2°W |
| Height | 651 km |
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