| Primary satellite | Secondary satellite |
| Name | NANOSAT C BR1 | STARLINK-4378 |
| Spacetrack catalog number | 40024 | 53476 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2025 May 18 23:39 | 2025 May 19 03:06 |
| Time of closest approach (UTC) | 2024 Apr 24 05:52:43.615 |
| Minimum distance | 2981.750 km |
| Height difference | -6.342 km |
| Relative speed | 15.030 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 61.8°N, 23.1°W |
| Height | 581 km |
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