#####Pioneer 11 Charged Particle Instrument Bundle

####Pioneer 11 CPI Daily Count Data Collection

    START_TIME                     = 1973-04-06T00:00:00
    STOP_TIME                      = 1992-11-27T23:59:59
    PRODUCER_FULL_NAME             = John A. Simpson

  Collection Overview
  =================
Pioneer 11 cruise Charged Particle Instrument (CPI) 1 Day
count data covering 1973-04-06 to 1992-11-27.

This experiment (carried also on Pioneer 10) measured charged-particle
composition and spectra using four detector systems: (1) the main telescope,
consisting of seven elements and providing energy spectra (approximately 3
to 68 MeV for protons and 10 to 150 MeV/nucleon for oxygen), element
resolution (through oxygen), and isotope resolution (for H and He); (2) the
low-energy subsystem telescope, consisting of two elements and using a very
small thin first element to extend the high-sensitivity proton measurements
below 1 MeV (0.3 to 9 MeV) in the presence of a high gamma-ray background
aboard the spacecraft; (3) the electron-current detector (ECG), consisting
of a beryllium-shield silicon detector operated in current mode to measure
high fluxes of electrons with energies above 3 MeV; and (4) the fission cell
detector, recording fission fragments from the nucleon-induced fission of
thorium 232 sandwiched between two large-area silicon detectors to measure
fluxes of protons (above 30 MeV) in the presence of high fluxes of
electrons. The experiment sample time was synchronized with the spacecraft
spin, permitting sectoring of the readout of the main and low-energy
telescopes into eight octants about the spin axis. Data also include
the interplanetary region.

Parameter List:

|--------|-----------------------------------------------------------------|
|IY      | Year (yy)                   [SCET-UT]                           |
|IDOY    | Day of year (1 = Jan. 1)    [SCET-UT]                           |
|IH      | Hour                        [SCET-UT]                           |
|RID2P   | ID-2 rate for 11-20 MeV protons [cps]                           |
|RID2HE  | ID-2 rate for 11-20 MeV/nucleon helium [cps]                    |
|RID3P   | ID-3 rate for 20-24 MeV protons [cps]                           |
|RID3HE  | ID-3 rate for 20-24 MeV/nucleon helium [cps]                    |
|RID4P   | ID-4 rate for 24-29 MeV protons [cps]                           |
|RID4HE  | ID-4 rate for 24-29 MeV/nucleon helium [cps]                    |
|RID5P   | ID-5 rate for 29-67 MeV protons [cps]                           |
|RID5HE  | ID-5 rate for 29-67 MeV/nucleon helium [cps]                    |
|RID5E1  | ID-5 rate for 7-17 MeV electrons [cps]                          |
|RID5E2  | ID-5 rate for 2 x minimum-ionizing [cps]                        |
|RID7    | ID-7 + ID-13 integral rate for ions at E > 67 MeV/nucleon [cps] |
|RID7ZG5 | ID-7 integral rate for Z > 5 ions at E > 67 MeV/nucleon [cps]   |