Rishi: Traditionally: Soma Pavamāna hymns are attributed to various seers; specific ascription for RV 9.44 varies by recension/Anukramaṇī (commonly from the Pavamāna collections).
Devata: Soma Pavamāna (purifying Soma/Indu)
Chandas: Likely Jagatī/Triṣṭubh-family meter typical of Pavamāna sections; exact chandas should be verified against the Anukramaṇī for RV 9.44.1.