| Primary satellite | Secondary satellite |
| Name | ISS | OBJECT J |
| Spacetrack catalog number | 25544 | 58925 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2026 Jan 18 11:57 | 2026 Jan 18 15:25 |
| Time of closest approach (UTC) | 2025 Dec 07 00:51:21.484 |
| Minimum distance | 6548.948 km |
| Height difference | 8.434 km |
| Relative speed | 14.523 km/s |
| Angle between velocity vectors | 144° |
| Geographic position | 30.2°S, 54.5°E |
| Height | 430 km |
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