| 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 11:47 | 2021 Jan 20 03:18 |
| Time of closest approach (UTC) | 2020 Dec 05 06:08:56.360 |
| Minimum distance | 31.726 km |
| Height difference | 2.013 km |
| Relative speed | 15.188 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 80.9°S, 1.4°E |
| Height | 532 km |
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