GMACS Exposure Time Calculator for J band v1.0


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 9000 and 13500)
Stop Wavelength Angstrom (between 9000 and 13500)
Binned pixel scale Angstrom/pixel (any number, 'default' is 1/3 of delta lambda)
Calculate:


README before you try the ETC