A Fortran program (levelb.f-used in the pipeline demo) was written that:
Read in level A calibrated image
Extract information from header
The channel, position (RA & Dec), and GMT of the observation
were extracted from the fitsheader.
Zodiacal Light Intensity
Calculate zodiacal light intensity for the above channel, position and time.
Add zodi intensity info to fits header
Note: A new calibrated image is created with additional fits headers.
The 7 ancillary images have not been changed.