| Primary satellite | Secondary satellite |
| Name | ZACube-1 | STARLINK-4431 |
| Spacetrack catalog number | 39417 | 53486 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2026 Jan 15 08:41 | 2026 Jan 15 07:28 |
| Time of closest approach (UTC) | 2025 Dec 18 09:48:31.712 |
| Minimum distance | 191.062 km |
| Height difference | -3.868 km |
| Relative speed | 14.831 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 46.1°N, 66.4°E |
| Height | 575 km |
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