| 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 26 11:47 | 2021 Jan 24 11:33 |
| Time of closest approach (UTC) | 2020 Dec 08 21:09:28.470 |
| Minimum distance | 25.515 km |
| Height difference | -2.247 km |
| Relative speed | 14.883 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 82.2°S, 111.2°E |
| Height | 532 km |
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