| Primary satellite | Secondary satellite |
| Name | Cosmos 1975 | AIST 2 |
| Spacetrack catalog number | 19573 | 39133 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 15 15:44 | 2021 Jan 16 02:26 |
| Time of closest approach (UTC) | 2020 Dec 08 16:22:15.247 |
| Minimum distance | 180.384 km |
| Height difference | -1.926 km |
| Relative speed | 4.659 km/s |
| Angle between velocity vectors | 36° |
| Geographic position | 55.2°S, 138.9°W |
| Height | 563 km |
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