| Primary satellite | Secondary satellite |
| Name | M-CUBED/EXP-1 PRIME | COSMOS 2251 DEB |
| Spacetrack catalog number | 37855 | 35903 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2022 Jun 29 14:38 | 2022 Jun 29 13:20 |
| Time of closest approach (UTC) | 2022 May 21 15:04:37.820 |
| Minimum distance | 1732.022 km |
| Height difference | 3.797 km |
| Relative speed | 11.220 km/s |
| Angle between velocity vectors | 96° |
| Geographic position | 77.4°S, 151.6°W |
| Height | 628 km |
|