and the type (Ia) had already been confirmed before I was able to take a spectrum last night.
My spectrum taken at ~ mag 16 using the modified ALPY “200” however confirms with high confidence the classification of a type Ia supernova near maximum light as assessed using the supernova identification program SNID.
When I checked on Saturday there was still no confirming spectrum but it had brightened to around mag 16 so I was able to extract a spectrum (confirming it as a type Ia) using the modified ALPY 200 despite a full moon. Guider image and spectrum (compared with best fit from GELATO) attached
Nice work. The results you are getting with your modified Alpy will make an interesting topic for discussion at the spectroscopy workshop next month. It would be interesting to discuss with Shelyak whether they will consider making this modification an option for customers.