| Primary satellite | Secondary satellite |
| Name | Cosmos 1656 | CZ-6A DEB |
| Spacetrack catalog number | 15755 | 54266 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 19 20:23 | 2023 Mar 19 17:34 |
| Time of closest approach (UTC) | 2023 Feb 03 07:45:03.581 |
| Minimum distance | 104.325 km |
| Height difference | -3.856 km |
| Relative speed | 6.681 km/s |
| Angle between velocity vectors | 53° |
| Geographic position | 56.7°S, 49.5°W |
| Height | 866 km |
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