| Primary satellite | Secondary satellite |
| Name | SJ-12 | STARLINK-4261 |
| Spacetrack catalog number | 36596 | 52868 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 May 15 04:27 | 2025 May 15 03:18 |
| Time of closest approach (UTC) | 2025 May 01 22:07:36.036 |
| Minimum distance | 283.061 km |
| Height difference | 3.205 km |
| Relative speed | 14.027 km/s |
| Angle between velocity vectors | 135° |
| Geographic position | 40.5°S, 107.5°E |
| Height | 551 km |
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