Fundamental Technologies Voyager LECP Pages

Saturn-Derived Calibrations

v1ebe.dat

c
c                       "v1ebe.dat"
c
c       voyager 1 ebeta energy channel data include file
c       electron version, e beta & e gamma channels
c       -----------------------------------------------
c       
c       data are : 
c               el - lower energy of channel in mev
c               eu - upper energy of channel in mev
c               dele - channel width in mev ( dele=eu-el )
c               epsg - epsilon*gf, in cm**2-sr
c       all are dimensioned eight (8)
c       -----------------------------------------------------
        el(1) = 0.026
        el(2) = 0.037
        el(3) = 0.070
        el(4) = 0.130
c			omit e beta 5
c        el(5) = 0.183
c			3 e-gamma channels (eg6-eg7,eg7-eg8,eg8-eg9)
        el(5) = 1.5   		!esa0 lower limit
        el(6) = 0.
        el(7) = 0.
        el(8) = 0
c       
        eu(1) = 0.037
        eu(2) = 0.070
        eu(3) = 0.130
        eu(4) = 0.200
c       eu(5) = 0.50   !omit eb05
        eu(5) = 8.5		!esb0 lower limit
        eu(6) = 0.
        eu(7) = 0.
        eu(8) = 0

        do  i = 1,8
           	dele(i) = eu(i) - el(i)
	end do

        do  i = 1,5
          	epsg(i) = 6.0e-3
          	emid(i) = sqrt( el(i)*eu(i) )
           	emidl(i) = alog10( emid(i) )
	end do

        epsg(4) = 3.9e-3
	epsg(5) = 0.12

        do i = 6, 8
	  	epsg(i) = 0.
		emid(i) = 0.
		emidl(i) = 0.
	end do
c       -----------------------------------------------------

v1plo.dat

c
c                       "v1plo.dat"
c
c       voyager 1 plo energy channel data include file
c       -----------------------------------------------
c       
c       data are : 
c               el - lower energy of channel in mev
c               eu - upper energy of channel in mev
c               dele - channel width in mev ( dele=eu-el )
c               epsg - epsilon*gf, in cm**2-sr
c       all are dimensioned eight (8)
c       -----------------------------------------------------
        el(1) = 0.040
        el(2) = 0.053
        el(3) = 0.085
        el(4) = 0.139
        el(5) = 0.220
        el(6) = 0.550
        el(7) = 1.050
        el(8) = 2.000
c       
        eu(1) = 0.053
        eu(2) = 0.085
        eu(3) = 0.139
        eu(4) = 0.220
        eu(5) = 0.550
        eu(6) = 1.050
        eu(7) = 2.000
        eu(8) = 4.000
c
        do 10 i = 1,8
 10		dele(i) = eu(i) - el(i)
c
        do 20 i = 1,8
          epsg(i) = 0.040
          emid(i) = sqrt( el(i)*eu(i) )
 20		emidl(i) = alog10( emid(i) )
c
	epsg(1) = 0.016
c       -----------------------------------------------------

v2ebe.dat

c
c                       "v2ebe.dat"
c
c       voyager 2 ebeta energy channel data include file
c       electron version, e beta & e gamma channels
c       -----------------------------------------------
c       
c       data are : 
c               el - lower energy of channel in mev
c               eu - upper energy of channel in mev
c               dele - channel width in mev ( dele=eu-el )
c               epsg - epsilon*gf, in cm**2-sr
c       all are dimensioned eight (8)
c       -----------------------------------------------------
        el(1) = 0.022
        el(2) = 0.035
        el(3) = 0.061
        el(4) = 0.112
c			omit e beta 5
c        el(5) = 0.183
c			3 e-gamma channels (eg6-eg7,eg7-eg8,eg8-eg9)
        el(5) = 0.252
        el(6) = 0.480
        el(7) = 0.853
        el(8) = 0
c       
        eu(1) = 0.035
        eu(2) = 0.061
        eu(3) = 0.112
        eu(4) = 0.183
c        eu(5) = 0.50
        eu(5) = 0.480
        eu(6) = 0.853
        eu(7) = 1.200
        eu(8) = 0
c
        do 10 i = 1,7
 10          dele(i) = eu(i) - el(i)
c
        do 20 i = 1,7
          epsg(i) = 6.0e-3
          emid(i) = sqrt( el(i)*eu(i) )
 20          emidl(i) = alog10( emid(i) )
c
	  emid(8) = 0.0
	  emidl(8) = 0.0

          epsg(4) = 3.9e-3
c          epsg(5) = 2.0e-3
          epsg(5) = 8.1e-3
          epsg(6) = 3.5e-3
          epsg(7) = 1.1e-4
c       -----------------------------------------------------

v2plo.dat

c
c                       "v2plo.dat"
c
c       voyager 2 plo energy channel data include file
c       -----------------------------------------------
c       
c       data are : 
c               el - lower energy of channel in mev
c               eu - upper energy of channel in mev
c               dele - channel width in mev ( dele=eu-el )
c               epsg - epsilon*gf, in cm**2-sr
c       all are dimensioned eight (8)
c       -----------------------------------------------------
        el(1) = 0.028
        el(2) = 0.043
        el(3) = 0.080
        el(4) = 0.137
        el(5) = 0.215
        el(6) = 0.540
        el(7) = 0.990
        el(8) = 2.140
c       
        eu(1) = 0.043
        eu(2) = 0.080
        eu(3) = 0.137
        eu(4) = 0.215
        eu(5) = 0.540
        eu(6) = 0.990
        eu(7) = 2.140
        eu(8) = 3.500
c
        do 10 i = 1,8
 10		dele(i) = eu(i) - el(i)
c
        do 20 i = 1,8
          epsg(i) = 0.113
          emid(i) = sqrt( el(i)*eu(i) )
 20		emidl(i) = alog10( emid(i) )
c
c       -----------------------------------------------------

This is a revised list of geometric factors and passbands for Voyager 2 electron channels based on the analysis of Saturnian and Jovian encounter data. (9/30/82)

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Last modified 5/25/05, Tizby Hunt-Ward
tizby@ftecs.com