| Primary satellite | Secondary satellite |
| Name | OBJECT D | STARLINK-6187 |
| Spacetrack catalog number | 51949 | 56546 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Nov 07 06:34 | 2025 Nov 06 16:37 |
| Time of closest approach (UTC) | 2025 Oct 20 15:52:10.250 |
| Minimum distance | 442.373 km |
| Height difference | 2.274 km |
| Relative speed | 9.562 km/s |
| Angle between velocity vectors | 78° |
| Geographic position | 39.7°S, 57.2°W |
| Height | 570 km |
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