The Mission of Opportunity Radbelt Experiment (MORE) for the RBSP Program

The MORE (Mission of Opportunity Radbelt Experiment) payload will conduct coordinated observations in the heart of the inner magnetosphere, from 2.0 to {~ 6.3} RE geocentric distance, where key particle acceleration and decay processes occur. MORE is the U.S. contribution to the Outer Radiation Belt Injection, Transport, Acceleration, and Loss Satellite (ORBITALS) mission, a small Canadian scientific satellite mission to launch in {~ 2012} as part of the satellite infrastructure for the International Living With a Star (ILWS) program. The MORE suite is a key complement of instruments for the ORBITALS spacecraft payload that will explore the radiation belts over a 2-year period with the concurrent presence of two identical Radiation Belt Storm Probe (RBSP) spacecraft in elliptical, near-equatorial orbits. MORE/ORBITALS will make the measurements necessary to gain fundamental new understanding of the relative importance of different physical acceleration and loss processes that are hypothesized to shape the energetic particle populations. ORBITALS will provide the raw radiation measurements at Middle Earth Orbit (MEO) altitudes necessary for the development of the next-generation radiation belt specification models; on-board experiments will monitor the dose, single event upset, and deep-dielectric charging of electronic components on-orbit. MORE/ORBITALS will complement RBSP, providing better temporal cadence, greater local time coverage, and better linkage between ground observations and geosynchronous measurements than the RBSP spacecraft alone could otherwise provide. The combination of MORE/ORBITALS with the RBSP program will be crucial for closure on many of the LWS Geospace mission objectives.