| Primary satellite | Secondary satellite |
| Name | Cosmos 1733 | FLOCK 4P 7 |
| Spacetrack catalog number | 16611 | 44816 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 20 03:53 | 2021 Jan 19 03:37 |
| Time of closest approach (UTC) | 2020 Dec 05 09:18:45.337 |
| Minimum distance | 27.749 km |
| Height difference | 1.864 km |
| Relative speed | 15.189 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 81.0°S, 47.2°W |
| Height | 532 km |
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