Satet was a fertility goddess from the first cataract at Aswan (from Setet Island) where she poured out all the water over Egypt every year when the star Sirius (Dog star) was visible for the fist time over the horizon.
From the Middle Kingdom and onwards she was the wife of the chief of the south province - Khnum, and with her sister (sometimes also her daughter) Ankhet they formed the "Triad of Elephantine".
Upper Egypt was sometimes called "The Land of Satet". She was also patroness of hunting with the white crown with gazelle horns plus carrying a bow and arrows. She washed the bodies of the dead to purify them before the embalming and entering the World on the other side.    Main text.