Data Set Summary
================
Data Set ID: ULY-J-HISCALE-4-SUMM-W-V1.0
Instrument: HISCALE
Instrument P.I.: Louis J. Lanzerotti
Data Supplier: Thomas P. Armstrong
Data sampling rate: CRUISE: 1 hour, W: 15 minutes
Data Set Start time: 1991-12-31T00:00:00.000Z
Data Set Stop time: 1992-02-16T23:45:00.000Z

Naming convention
-----------------
This data set consists of two data files named:

CRUISE.TAB    1 hour averaged cruise data 1991-12-31 to 1992-02-01
W.TAB         15 minute averaged encounter data 1992-02-02 to 1992-02-16

Record format
-------------
These files can be read according to the FORTRAN format statement:
  '(a24,8(1x,1pe9.2))'
where 'a24' is the time stamp in PDS format: yyyy-mm-ddThh:mm:ss.sssZ.
The individual elements of the time field can be read according to the 
statement:
  '(i4,4(1x,i2),1x,f6.3,1x)' year, month, day, hour, minute, seconds.
thus a record may be alternatively be read according to the format:
  '(i4,4(1x,i2),1x,f6.3,1x,8(1x,1pe9.2))'

Data column descriptions
------------------------
time    a24      spacecraft event time in the format yyyy-mm-ddThh:mm:ss.sssZ
W1      1pe9.2   HISCALE W ion counts (0.480-0.966 MeV protons)
W2      1pe9.2   HISCALE W ion counts (0.968-1.204 MeV protons)
W3      1pe9.2   HISCALE W ion counts (0.380-1.278 MeV/nuc. alphas)
W4      1pe9.2   HISCALE W ion counts (1.277-6.984 MeV/nuc. alphas)
W5      1pe9.2   HISCALE W ion counts (0.465-1.709 MeV/nuc. CNO)
W6      1pe9.2   HISCALE W ion counts (1.709-19.107 MeV/nuc. CNO)
W7      1pe9.2   HISCALE W ion counts (0.239-0.840 MeV/nuc. Fe group)
W8      1pe9.2   HISCALE W ion counts (0.840-92.663 MeV/nuc. Fe group)

Missing data flag value
-----------------------
Any data column whose value is -9.99e+10 is a missing data value.

Data Description
================

HI-SCALE 

   The Heliosphere Instrument for Spectra, Composition, and Anisotropy at Low
   Energies is designed to make measurements of interplanetary ions and 
   electrons throughout the entire Ulysses mission.

   The ions (Ei > 50 keV) and electrons (Ee > 30 keV) are identified uniquely 
   and detected by five separate solid-state detector telescopes that are 
   oriented to give nearly complete pitch-angle coverage from the spinning 
   spacecraft.

   Ion elemental abundances are determined by a del E vs E telescope using a 
   thin 5 micrometer front solid state detector element in a three element 
   telescope.  Experiment operation is controlled by a microprocessor-based 
   data system.

   Inflight calibration is provided by radioactive sources mounted on 
   telescope covers which can be closed for calibration purposes and for 
   radiation protection during the course of the mission.

   Ion and electron spectral information is determined using both broad-
   energy-range rate channels and a 32 channel pulse-height analyses 
   (channels spaced logarithmically) for more detailed spectra.

   The instrument weighs 5.775 kg and uses 4.0 W of power.

About W

W counts ions.

W1       0.480-0.966      MeV      protons
W2       0.968-1.204      MeV      protons
W3       0.380-1.278      MeV/nuc. alphas
W4       1.277-6.984      MeV/nuc. alphas
W5       0.465-1.709      MeV/nuc. CNO
W6       1.709-19.107     MeV/nuc. CNO
W7       0.239-0.840      MeV/nuc. Fe group
W8       0.840-92.663     MeV/nuc. Fe group