The Hera-panchami festival takes place five days after the Ratha-yatra festival. Lord Jagannatha has left His wife, the goddess of fortune, and gone to Vrindavana, which is the Gundica temple.
Due to separation from the Lord, the goddess of fortune decides to come to see the Lord at Gundica. The coming of the goddess of fortune to Gundica is celebrated by Hera-panchami. Sometimes this is misspelled as Hara-pancami the section known as ativadi.
The word hera means “to see” and refers to the godde