| Primary satellite | Secondary satellite |
| Name | Cosmos 1733 | PINA 2A |
| Spacetrack catalog number | 16611 | 41843 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 20 11:47 | 2021 Jan 20 18:00 |
| Time of closest approach (UTC) | 2020 Dec 07 05:35:10.924 |
| Minimum distance | 73.679 km |
| Height difference | -1.848 km |
| Relative speed | 13.588 km/s |
| Angle between velocity vectors | 127° |
| Geographic position | 82.0°S, 50.5°W |
| Height | 532 km |
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