| Primary satellite | Secondary satellite |
| Name | Cosmos 1666 | ICESAT-2 |
| Spacetrack catalog number | 15889 | 43613 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Feb 01 06:47 | 2023 Feb 01 13:31 |
| Time of closest approach (UTC) | 2022 Dec 02 12:10:14.967 |
| Minimum distance | 5609.134 km |
| Height difference | -28.692 km |
| Relative speed | 15.185 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 7.2°N, 97.6°E |
| Height | 509 km |
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