Voyager ISS Voyager ISS Calibration Memo 1990-05-14


CALIFORNIA INSTITUTE OF TECHNOLOGY
DIVISION OF GEOLOGICAL AND PLANETARY SCIENCES
PASADENA, CALIFORNIA

MARS OBSERVER CAMERA PROJECT
55 N. St. John Ave., Pasadena, CA 91103 (818) 796-4266<

To:        Voyager Colleagues                      Date: May 14, 1990 
From:      Ed Danielson 
Subject:   Updated Calibration Factors for Voyager 2 Cameras 
 
 
Torrence Johnson and I discussed the accuracy of the last attempt to update the 
Calibration factors for the Voyager 2 Cameras from the "Danielson et al" paper. 
We were satisfied the figures given out on the 8/18/89 notes from Torrence were 
still the ones to use. However a final check showed that one of the blue filters 
was not converted correctly. Attached is a copy of the corrected calibration 
factors along with a copy of the "Danielson et al" paper. 
 
Happy Photometry!! 
 


* * *

 
 
Date:   03-May-90          CALIBRATIONS BASED ON CORR. TO DANIELSON ET AL IN VGRCAL88.WK1 
VOYAGER 2 CALIBRATION FACTORS: NARROW ANGLE CAMERA 
CAL88.WK1 
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Filter            Clear    Violet   Blue     Orange   Green    Ultraviolet       Ultraviolet       Ultraviolet 
#                    0,4       1        2        3       5,6       7             Atm. corr. 1989   Sat. Corr. 1989 
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J IPL Corr.factor    0.939    0.930    1.000    0.947    0.938    3.094             2.873             3.319 
S IPL Corr.factor    3.141    3.111    3.345    3.167    3.137   10.348             9.609            11.101 
U IPL Corr.factor   12.698   12.576   13.523   12.806   12.684   41.839            38.850            44.881 
N IPL Corr.factor   31.699   31.396   33.759   31.970   31.666  104.450            96.989           112.045 
J omega 0(5.2au)  2103.093  635.787  909.510  208.439  513.127   70.565            76.013            65.794 
S omega 0(9.51au)  628.788  190.089  271.928   62.320  153.415   21.098            22.727            19.671 
U omega 0(19.122au 155.524   47.017   67.259   15.414   37.946    5.218             5.621             4.865 
N omega 0(30.21au)  62.298   18.833   26.941    6.174   15.200    2.090             2.252             1.949 
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