The sunphotometer family running it's pre-ORACLES and pre-NAAMES calibration trip to some of the cleanest air in the world, on the top of a mountain in the middle of the Pacific: Mauna Loa. Featured here is 4STAR, 4STARB (our new instrument), 2STAR (ground based detector standard), and trusty old AATS.
Credits
Samuel LeBlanc
Subject
Instrument
Mission