| Primary satellite | Secondary satellite |
| Name | ALOS | deb HAPS |
| Spacetrack catalog number | 28931 | 24197 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 20:48 | 2021 Jan 17 17:04 |
| Time of closest approach (UTC) | 2020 Dec 06 12:11:20.408 |
| Minimum distance | 3.500 km |
| Height difference | 0.301 km |
| Relative speed | 14.950 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 82.2°S, 154.3°E |
| Height | 712 km |
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