Enjoy the day!
UPDATE: A close friend, Linda, researched
this smiling rainbow for me:
"The circumzenithal arc has been called "a smile in the sky". It is rarely noticed because it occurs so far overhead, but in fact is relatively common.Cirrus clouds which cause a sun dog can cause a circumzenithal arc when they reach the zenith, if the Sun is low in the sky."
It really IS possible to learn something new every day!