| Primary satellite | Secondary satellite |
| Name | M-CUBED/EXP-1 PRIME | Nadezhda 6 |
| Spacetrack catalog number | 37855 | 26384 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2021 Mar 05 21:11 | 2021 Mar 06 05:31 |
| Time of closest approach (UTC) | 2021 Jan 20 19:05:10.901 |
| Minimum distance | 74.024 km |
| Height difference | 1.123 km |
| Relative speed | 14.622 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 37.1°S, 170.0°W |
| Height | 675 km |
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