voyramp Documentation

voyramp - Correct Voyager 1 Io images from plasma torus irradiation
Removes parabolic (top to bottom) additive error from Voyager
800 x 800 frames.

Calculate the DN offset values for each line to correct additional
dark current buildup on the vidicon detectors on Voyager 1 during
a 15 hour passage through the Io plasma torus.  The additive error
increased from top to bottom of each frame and is directly related
to the spacecraft event time. Three two-dimensional [DN
offset/Spacecraft event] plots (ICARUS 73,385-426(1988) Global Color
and Albedo Variations on IO, by Alfred S. McEwen) reveal the DN
offset values based on hour by hour event times, one for top of the
frame, middle and bottom.

PROGRAMMER: Kris Becker, U.S.G.S., Flagstaff, AZ

Input cube file name
  (default extension is .cub)

NONE

Name of output cube file

NONE

Exposure correction as reported
by voycal (1.0/EXP0*W1)

NONE

Gain correction as reported
by voycal

NONE

Offset correction (OFF) as
reported by voycal

NONE

User comment

" "

ADDITIONAL NOTES:

Parm	Description
FROM	Input cube file name. If the file extension is omitted, then ".cub" will be assumed.
USERNOTE	Comment from the user. This will be recorded in the ISIS session log file and also in the History entry that is put into the History object of the output file.