| Primary satellite | Secondary satellite |
| Name | M-CUBED/EXP-1 PRIME | CZ-4C DEB |
| Spacetrack catalog number | 37855 | 43263 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 21:11 | 2021 Mar 05 15:31 |
| Time of closest approach (UTC) | 2021 Jan 18 17:34:41.550 |
| Minimum distance | 134.099 km |
| Height difference | -7.261 km |
| Relative speed | 14.019 km/s |
| Angle between velocity vectors | 138° |
| Geographic position | 60.5°S, 136.1°W |
| Height | 660 km |
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