There are several Vedic sacrifices performed on different days, determined by the phases of the moon. The moon rising on the 15th day of the bright fortnight, which is still associated with the 14th day (caturdaśī), will have one kalā or digit less. It is said that iṣṭis (sacrifices) performed on that day are received favourably by the gods and manes. In Vedic literature the day itself is personified as the goddess Anumati. She is to be propitiated with oblations at a certain stage during the Rājasūya sacrifice.
See also RĀJASŪYA.