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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