Using the AOD to do a second order correction for extinction ?

Forums Spectroscopy Relative Flux Calibration Using the AOD to do a second order correction for extinction ?

#577917
Robin Leadbeater
Participant

I am wondering if using the AOD technique to do a second order extinction correction coupled with our standard reference star technique as a first order correction might be useful, reducing the need to chose the reference star precisely at the same elevation as the target. ie The MILES star need not then be at the same elevation, as the effect of the difference in air mass is calculated separately using a typical AOD. 

Robin