| 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 06 21:40:17.911 |
| Minimum distance | 4.811 km |
| Height difference | 0.125 km |
| Relative speed | 15.196 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 81.7°S, 65.1°E |
| Height | 532 km |
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