| Primary satellite | Secondary satellite |
| Name | JY1SAT | STARLINK-1641 |
| Spacetrack catalog number | 43803 | 46174 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2025 Dec 14 03:01 | 2025 Dec 14 06:42 |
| Time of closest approach (UTC) | 2025 Nov 13 13:32:33.664 |
| Minimum distance | 1745.236 km |
| Height difference | -38.806 km |
| Relative speed | 12.104 km/s |
| Angle between velocity vectors | 105° |
| Geographic position | 64.6°S, 135.3°E |
| Height | 506 km |
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