| Primary satellite | Secondary satellite |
| Name | N. Korean satellite | YAOGAN 28 |
| Spacetrack catalog number | 39026 | 41026 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Jan 18 13:38 | 2021 Jan 18 18:39 |
| Time of closest approach (UTC) | 2020 Nov 28 01:18:22.313 |
| Minimum distance | 1129.915 km |
| Height difference | -3.019 km |
| Relative speed | 14.166 km/s |
| Angle between velocity vectors | 138° |
| Geographic position | 57.7°S, 46.6°E |
| Height | 520 km |
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