Plasma and Magnetic Field Data FilesEach zipped file will yield two files when unzipped. A file is created for each of two types of data, plasma and magnetic field. The file names contain the following information:
For example, the file
Data Type I = Plasma B = Magnetic field yr Single digit year in the 1980s mo 2-digit month da 2-digit day hr 2-digit hour in which the data started.
Data File Contents
Each line contains the following contents, and the items are tab-delineated. The Plasma file (starts with i*) contains:
The magnetic field file (starts with b*) also contains the same initial 8 columns, and then
Mid Time The center of the accumulation time interval for the data point, in DA/MO/YR HR:MN:SS format DT The accumulation time for the measurement - normally one spin. Xgse Spacecraft location in GSE coordinates, in Re Ygse " Zgse " R " Magnetic Latitude " (in degrees) Magnetic Local time " (in decimal hours) Np Density of Protons (1/cm3) Vp Velocity of protons, 3 components, X, Y, Z in GSE coordinates (in km/s) Tp Temperature of the protons (in 106 K) Ne Density of electrons (1/cm3) Ve Velocity of electrons, 3 components, X, Y, Z in GSE coordinates (in km/s). This quantity is rarely correct. Do not use for quantitative work. Te Temperature of the electrons (in 106 K)
Bx Magnetic field in nT, GSE coordinates By Bz