| Primary satellite | Secondary satellite |
| Name | Cosmos 1975 | CZ-4C DEB |
| Spacetrack catalog number | 19573 | 42670 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 23 10:26 | 2021 Jan 22 08:03 |
| Time of closest approach (UTC) | 2020 Dec 08 04:31:12.831 |
| Minimum distance | 1.994 km |
| Height difference | -1.156 km |
| Relative speed | 15.154 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 28.8°N, 133.4°W |
| Height | 563 km |
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