| Primary satellite | Secondary satellite |
| Name | Cosmos 1733 | CZ-4 DEB |
| Spacetrack catalog number | 16611 | 35268 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 20 11:47 | 2021 Jan 19 11:33 |
| Time of closest approach (UTC) | 2020 Dec 08 21:10:12.286 |
| Minimum distance | 21.606 km |
| Height difference | -2.388 km |
| Relative speed | 14.883 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 82.2°S, 110.4°E |
| Height | 533 km |
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