| Primary satellite | Secondary satellite |
| Name | OPAL | ATEX |
| Spacetrack catalog number | 26063 | 25615 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Mar 05 17:26 | 2021 Mar 05 19:13 |
| Time of closest approach (UTC) | 2021 Jan 19 10:30:23.183 |
| Minimum distance | 5.240 km |
| Height difference | -0.454 km |
| Relative speed | 14.902 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 54.9°S, 174.2°E |
| Height | 767 km |
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