Voyager-1 Flux (daily average) The data in this directory contain daily averages of selected hydrogen and helium fluxes. Each data file consists of a header followed by data. First line identifies the spacecraft; VOYAGER-1 Line 2 contains the time of the first 6 hour interval in ISO 8601 format Line 3 contains the time of the last 6 hour interval in ISO 8601 format Line 4 contains the count of quantities (n) Lines 5 to (4+n) identify the quantities. Each of these lines begins with a number that specifies the position of the quantity in the data lines that follow. Data lines start with ISO 8601 formatted time string that defines the start of the 6 hour interval. Time string is followed by n entries, each of which consists of a pair of numbers. First of these is the value of the quantity and the second represents the statistical uncertainty. A missing measurement is represented by an entry where value is zero and the uncertainty equals -1. If, for lack of coverage, no data was available for an interval, then there is no line for that interval. The measurement unit for all fluxes is: PARTICLES / M2-S-SR-MeV/Nuc