aareadme for https://spdf.gsfc.nasa.gov/pub/data/imp/imp8/particles_uchi/hourly/alphas/ Most needed information is in readme files higher in the subdirectory tree. The following alpha_particle-specific information is from the headers of each UNH-resident monthly file of alpha particle count rates. Flux Data are contained in columnar form with each column as: Column 01: YEAR Column 02: DAY OF YEAR Column 03: HOUR OF DAY Column 04: COVERAGE (PERCENT) Column 05: ID2 HELIUM (10.90-12.89 MEV/NUC) Column 06: ID2 HELIUM (12.89-16.35 MEV/NUC) Column 07: ID2 HELIUM (16.35-19.95 MEV/NUC) Column 08: ID3 HELIUM (19.95-25.36 MEV/NUC) Column 09: ID4 HELIUM (30.61-42.03 MEV/NUC) Column 10: ID4 HELIUM (42.03-55.40 MEV/NUC) Column 11: ID4 HELIUM (55.40-69.64 MEV/NUC) Column 12: ID4 HELIUM (69.64-84.32 MEV/NUC) Column 13: ID4 HELIUM (84.32-94.81 MEV/NUC) ------------------------------------------------------------