| Primary satellite | Secondary satellite |
| Name | Cosmos 1766 | JILIN-01 GAOFEN 3J |
| Spacetrack catalog number | 16881 | 46462 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Jul 12 12:41 | 2025 Jul 12 22:23 |
| Time of closest approach (UTC) | 2024 Jun 16 15:55:05.475 |
| Minimum distance | 21.299 km |
| Height difference | 13.642 km |
| Relative speed | 15.237 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 30.3°N, 105.2°W |
| Height | 483 km |
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