| Primary satellite | Secondary satellite |
| Name | ALOS | deb Kosmos-923 |
| Spacetrack catalog number | 28931 | 14802 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 25 15:57 | 2021 Jan 25 12:42 |
| Time of closest approach (UTC) | 2020 Dec 07 10:57:10.286 |
| Minimum distance | 5.487 km |
| Height difference | 3.429 km |
| Relative speed | 14.942 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 41.1°S, 108.0°W |
| Height | 699 km |
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