| Primary satellite | Secondary satellite |
| Name | Cosmos 1666 | GOMX4-B |
| Spacetrack catalog number | 15889 | 43196 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 Jul 06 10:55 | 2022 Jul 06 08:27 |
| Time of closest approach (UTC) | 2022 May 20 19:29:36.253 |
| Minimum distance | 859.099 km |
| Height difference | 0.836 km |
| Relative speed | 10.709 km/s |
| Angle between velocity vectors | 89° |
| Geographic position | 75.3°S, 167.1°E |
| Height | 516 km |
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