| Primary satellite | Secondary satellite |
| Name | N. Korean satellite | CZ-4C DEB |
| Spacetrack catalog number | 39026 | 44213 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Jan 16 03:32 | 2021 Jan 16 11:54 |
| Time of closest approach (UTC) | 2020 Dec 09 05:10:50.291 |
| Minimum distance | 59.782 km |
| Height difference | -1.054 km |
| Relative speed | 1.203 km/s |
| Angle between velocity vectors | 9° |
| Geographic position | 82.7°N, 99.2°E |
| Height | 499 km |
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