| Name of Satellite, Alternate Names | M-Cubed/E1P-U2 (Michigan Multipurpose Minisat; Explorer 1 Prime - Unit 2 - HRBE [William A. Hiscock Radiation Belt Explorer]) |
| Country of Operator/Owner | USA |
| Operator/Owner | University of Michigan/Montana University |
| Users | Civil |
| Purpose | Technology Development |
| Class of Orbit | LEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | 0 |
| Perigee (km) | 457 |
| Apogee (km) | 816 |
| Eccentricity | 0.025619068008278 |
| Inclination (degrees) | 101.7 |
| Period (minutes) | 97.45 |
| Launch Mass (kg.) | 2 |
| Dry Mass (kg.) | |
| Power (watts) | |
| Date of Launch | 28-10-2011 |
| Expected Lifetime | |
| Contractor | University of Michigan/Montana University/Montana Space Grant Consortium |
| Country of Contractor | USA |
| Launch Site | Vandenberg AFB |
| Launch Vehicle | Delta 7920 |
| COSPAR Number | 2011-061F |
| NORAD Number | 37855 |
| Comments | M-Cubed is as a technology demonstrator platform for high resolution imaging technology intended for use in a future Nasa mission; E1P-U2 mission is to detect the Van Allen radiation belts. |