Pioneer 11 Trapped Radiation Detector (TRD) 1-Hour Count Rates

2021-03-11 18:39:11Z

Hourly count rates from UCSD Trapped Radiation Detector
(TRD) carried on Pioneer 11. Included are four rates, C1 and C3 from the
Cerenkov counter and M1L and M3L from the Minimum Ionizing Particle Counter.
C1 corresponds to >480 MeV/n ions (typically 80% protons and 20% Z>1 nuclei).
C3 corresponds to >650 MeV/n ions (typically 30% protons and 70% Z>1 nuclei).
M1L corresponds to >80 MeV/n ions (typically 90% protons and 10% Z>1 nuclei).
M3L corresponds to 80-300 MeV protons (50%) and >80 MeV/n Z>1 nuclei (50%).
The data are ftp-accessible in annual ASCII files and via FTPBrowser.
The hourly averages were computed at NSSDC from 30-min data still offline
(as of Feb. 2009).

Please acknowledge the PI, R. Walker Fillius, and the GSFC Space Physics Data Facility.

spase://VEPO/NumericalData/Pioneer11/TRD/PT1H

spase://VSPO/NumericalData/Pioneer11/TRD/PT1H

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Please acknowledge the PI, R. Walker Fillius, and the GSFC Space Physics Data Facility

PT1H

C1 Count rate, ions > 480 MeV/n

Column08

Hourly count rate of protons > 480 MeV (~80% of counts)
and >480 MeV/n Z>1 ions

PT1H

cps

C3 Count rate, ions > 650 MeV/n

Column09

Hourly count rate of protons > 650 MeV (~30% of counts)
and >650 MeV/n Z>1 ions

PT1H

cps

M3L Count rate, ions > 80 MeV/n

Column06

Hourly count rate of protons between 80 and 300 MeV
(~50% of counts) and >80 MeV/n Z>1 ions

PT1H

cps

M1L Count rate, ions (mostly protons) > 80 MeV/n

Column07

Hourly count rate of protons above 80 MeV
(~90% of counts) and >80 MeV/n Z>1 ions

PT1H

cps