| Primary satellite | Secondary satellite |
| Name | LEGION 2 | TIANMU-1 17 |
| Spacetrack catalog number | 59626 | 58702 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:58 | 2024 Dec 23 10:30 |
| Time of closest approach (UTC) | 2024 Dec 28 11:53:25.747 |
| Minimum distance | 8.911 km |
| Height difference | -2.528 km |
| Relative speed | 12.112 km/s |
| Angle between velocity vectors | 106° |
| Geographic position | 77.6°S, 58.3°W |
| Height | 544 km |
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