Advanced Composition Explorer (ACE) Ultra Low Energy Isotope Spectrometer (ULEIS) Level 2 Data

Exploratory measurements of ultra-heavy species (mass range above Ni) will also be performed in a more limited energy range near 0.5 MeV/nucleon. ULEIS will be studying the elemental and isotopic composition of solar energetic particles, and the mechanisms by which these particles are energized in the solar corona.

ULEIS will also investigate mechanisms by which supersonic interplanetary shock waves energize ions. ULEIS level 2 data is organized into 27-day time periods (Bartels Rotations - roughly one solar rotation period). For each Bartels Rotation, the level 2 data contains time averages of energetic charged particle fluxes over the following time periods: - hourly - daily - 27 days (1 Bartels rotation) Currently, flux data are available for 7 species, in several energy intervals for each species.