| Primary satellite | Secondary satellite |
| Name | Cosmos 1666 | UPMSAT-2 |
| Spacetrack catalog number | 15889 | 46276 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2022 Jul 06 10:55 | 2022 Jul 06 10:05 |
| Time of closest approach (UTC) | 2022 May 23 08:13:52.110 |
| Minimum distance | 145.923 km |
| Height difference | -0.268 km |
| Relative speed | 14.717 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 81.5°N, 119.9°E |
| Height | 528 km |
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