| Primary satellite | Secondary satellite |
| Name | UWE-3 | STARLINK-2187 |
| Spacetrack catalog number | 39446 | 48562 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2026 Jan 18 19:51 | 2026 Jan 18 04:37 |
| Time of closest approach (UTC) | 2025 Dec 16 11:23:38.449 |
| Minimum distance | 129.841 km |
| Height difference | -0.808 km |
| Relative speed | 14.421 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 31.7°S, 140.3°W |
| Height | 556 km |
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