ESPaDOnS Exposure Time and Signal-to-Noise Ratio Calculator

Compute wavelength (nm)
SNR/pixel bin/exp
MagV T Eff (K) airmass seeing " Observing Mode Readout mode Detailed Output?
e-time (seconds)
© 2015 Canada-France-Hawaii-Telescope Corporation Adapted from Eder Martioli's port of Jean-Francois Donati's original software by Claire Moutou and Billy Mahoney