| Primary satellite | Secondary satellite |
| Name | ALOS | NOAA 16 DEB |
| Spacetrack catalog number | 28931 | 41303 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 11 20:46 | 2021 Apr 11 18:58 |
| Time of closest approach (UTC) | 2021 Mar 07 15:04:02.101 |
| Minimum distance | 30.145 km |
| Height difference | 0.129 km |
| Relative speed | 14.481 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 56.8°S, 26.5°E |
| Height | 706 km |
|