This directory contains hourly and daily averages of parameters for the interplanetary magnetic field, solar wind plasma, proton fluxes and spacecraft trajectory coordinates. Data Description are given at "vy1mgd.txt" file ------------------------------------------------------------------ Related data and directories: SPDF Data and Orbits Services SPDF Contact: Natalia Papitashvili , Please acknowledge Space Physics Data Facility, and PI for data usage. Authorizing NASA Official: Dr. R.E. McGuire, Head, SPDF, NASA Goddard Space Flight Center 301-286-7794, e-mail: Robert.E.McGuire@nasa.gov ----------------------------------------------------------------------------------