| Primary satellite | Secondary satellite |
| Name | M-CUBED/EXP-1 PRIME | FENGYUN 1C DEB |
| Spacetrack catalog number | 37855 | 29832 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 21:11 | 2021 Mar 05 21:41 |
| Time of closest approach (UTC) | 2021 Jan 23 13:40:18.296 |
| Minimum distance | 91.688 km |
| Height difference | -4.807 km |
| Relative speed | 13.809 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 65.3°S, 57.0°E |
| Height | 601 km |
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