This data collection was supplied by Dr. Bernard V. Jackson (bvjackson@ucsd.edu) at the University of California San Diego.   This directory includes 3 subdirectories:  reduced_zodiacal_light_ar that contains the Helios A zodiacal light reduced data, zodiacal_light_az that contains the Helios A zodiacal light data, and a subdirectory documents that contains  a word document describing the data and a software subdirectory that contains a Fortran reader  and two executable files. pandora.exe works on a Linux machine to describe the HELIOS data. The programs in the file are also described on the UCSD on-line resources catalog at http://cass.ucsd.edu/archive/solar/resources.html#resources