GMACS Exposure Time Calculator v1.6

go to GMACS J-band ETC

Telescope size:
Object Type (assume all point source)



= mag
Grating:
Redshift:
Exposure time: seconds
Seeing: arcseconds
Slit width: arcseconds
Days from
new moon:
Start Wavelength Angstrom (between 3500 and 10360)
Stop Wavelength Angstrom (between 3500 and 10360)
Binned pixel scale Angstrom (any number, 'default' is 1/3 of delta lambda)
Calculate:


README before you try the ETC