| Primary satellite | Secondary satellite |
| Name | M-CUBED/EXP-1 PRIME | GAOFEN 12 |
| Spacetrack catalog number | 37855 | 44819 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2021 Mar 05 21:11 | 2021 Mar 06 08:43 |
| Time of closest approach (UTC) | 2021 Jan 22 01:34:36.269 |
| Minimum distance | 51.292 km |
| Height difference | -0.245 km |
| Relative speed | 14.818 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 9.2°N, 82.4°E |
| Height | 631 km |
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