images,s,a,,,,"Images"
observatory,s,h,)_.observatory,,,"Observatory of observation"
date,s,h,"date-obs",,,"Date of observation keyword"
time,s,h,"ut",,,"Time of observation keyword"
exposure,s,h,"exptime",,,"Exposure time keyword"
ra,s,h,"ra",,,"Right ascension (hours) keyword"
dec,s,h,"dec",,,"Declination (degrees) keyword"
epoch,s,h,"epoch",,,"Epoch (years) keyword
"
jd,s,h,"jd",,,"Output Julian date keyword"
hjd,s,h,"hjd",,,"Output Helocentric Julian date keyword"
ljd,s,h,"ljd",,,"Output local Julian date keyword
"
utdate,b,h,yes,,,"Is observation date UT?"
uttime,b,h,yes,,,"Is observation time UT?"
listonly,b,h,no,,,"List only without modifying images?"