Re: Help finding source of PE fundamentals using PemPro
So, is the harmonic at 3x perhaps due to drift?No, that is extremely unlikely.
Author of PEMPro
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver