A key aspect of the mission was to collect separate samples of different types of solar wind--interstream, coronal hole, and coronal mass ejection. To distinguish these types in real time the spacecraft is equipped with a Genesis Electron Monitor (GEM) and a Genesis Ion Monitor (GIM). These in-situ spectrometers had dual roles of a) providing raw data to a science algorithm in the spacecraft C&DH unit to command the collection arrays, and b) providing a solar-wind plasma data set available to the Space Physics community. This website exists to provide you with the GIM & GEM data set. In addition to L1 data, the Monitors collected data during the outbound phase of the mission, from August 24 to mid-November, 2001, and during the return phase, between April 1 and August 4, 2004, during which Genesis flew by the Earth and out to the L2 point.

Further information about the mission and about the science and technical rationale for sample collection is available through the links and publications mentioned on this site.