Maraṇa (death) of the Jyotiṣka Deva (Luminous gods) and Vaimānika Deva (Empyrean gods);
departure of the soul of these gods to the next form of existence, after having completed their respective life-span in the upper regions; after death, they descend downwards (in their reincarnation)
'cayane' tti cyutiḥ cyavanṃ - vaimānikajyotiṣ- kāṇāṃ maraṇam.
(Sthā 1.27 Vṛ Pa 19)