ESPaDOnS CFHT exposure time calculator v2.0

This Exposure Time Calculator is not up-to-date. Please use the most current ETC, which can be found here.

Calculator options

CCD chip Exposure Time : sec S/N : @ wavelength : nm
* Select "Olapa 1 amp" for 2011A

Source model

V magnitude : Effective Temperature : K

Observing conditions

Image Quality : arcsec Airmass :

Instrument configuration

Observing Mode: CCD Readout Mode:

Sky brightness

Moon : angular dist. from moon : deg zenithal dist. of moon : deg

This webpage is based on the ESPaDOnS exposure time calculator webpage by J-F Donati and S. Baratchart .

Eder Martioli, last update Oct 10, 2011.