Pioneer 11 Geiger Tube Telescope (GTT) 15-min count rate data

This data set holds 15-min count rates and related
parameters for each of 8 sensors or multi-sensor coincidence modes,
as obtained from the U.Iowa Geiger Tube Telescope (GTT) experiment flown
on Pioneer 11. Single-sensor count rates are from the A (directional
fluxes of 0.04-21 MeV electrons and 0.61-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), B (directional fluxes
of 0.56-21 MeV electrons and 9-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), C (omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), D (omnidirectional
fluxes of .GT.31 MeV electrons and .GT.80 MeV protons), and G (directional
fluxes of 0.61-3.41 MeV protons) Geiger tubes. Coincidence mode rates
are given for Geiger tube combinations (A,B), (A,B,C) and (D,E,F).
The G and (A,B,C) rates are each given multiple times in the 12 rates
of each 15-min record. Additional parameters associated with each count
rate include numbers of counts contributing to each count rate, the
statistical uncertainty in each rate, and others used in U. Iowa's
processing and carried along for posterity. These are described in
the document identified in the first "Information URL." The data were
provided to NSSDC on VMS-binary-formatted tapes and were converted to
ASCII by GSFC/SPDF in 2009. The data are available in 6-month ASCII
files whose sizes range from ~20MB early in the mission to .LT.1MB
late in the mission.