| Primary satellite | Secondary satellite |
| Name | Altair | GLOBALSTAR M059 |
| Spacetrack catalog number | 50 | 25944 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Jan 18 09:16 | 2021 Jan 18 18:16 |
| Time of closest approach (UTC) | 2020 Nov 29 13:42:31.010 |
| Minimum distance | 1.640 km |
| Height difference | -1.441 km |
| Relative speed | 4.596 km/s |
| Angle between velocity vectors | 38° |
| Geographic position | 46.3°S, 20.5°W |
| Height | 1698 km |
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