| Primary satellite | Secondary satellite |
| Name | ALOS | SJ-11-02 |
| Spacetrack catalog number | 28931 | 37765 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Apr 16 04:12 | 2021 Apr 16 03:40 |
| Time of closest approach (UTC) | 2021 Feb 28 20:30:32.314 |
| Minimum distance | 11.298 km |
| Height difference | 1.283 km |
| Relative speed | 14.205 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 64.0°S, 50.7°W |
| Height | 708 km |
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