| Primary satellite | Secondary satellite |
| Name | N. Korean satellite | OBJECT R |
| Spacetrack catalog number | 39026 | 43891 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2021 Apr 15 21:33 | 2021 Apr 16 08:25 |
| Time of closest approach (UTC) | 2021 Mar 09 12:50:43.465 |
| Minimum distance | 246.709 km |
| Height difference | -1.457 km |
| Relative speed | 11.550 km/s |
| Angle between velocity vectors | 99° |
| Geographic position | 80.0°S, 109.9°E |
| Height | 510 km |
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