after looking up the images restricted from the sky maps on nasa's iras website i noticed there are associated charts and scan images for every object in the night sky,
for 99.9% of the objects viewed by this telescope satellite the peak charts are very singular for all but 1 of the objects that were imaged,
the attached images are taken from
IRSA: The Infrared Science Archives
now ,
for mercury it is one definite strong peak