Uniform (constant with wavelength) Blackbody: Temperature: Kelvin Object Magnitude: Vega AB Single line Wavelength: nm Flux: 10-16 ergs/s/cm2 (per arcsec2 for extended sources) FWHM: nm
Airmass Seeing arcsec
Slit: 0.6 width 1.0 width 2.0 width arcsec Grisms: Low Resolution: Red Blue Medium Resolution: H K
DIT: sec
The total exposure time is the product of DIT (Detector Integration Time), NDIT (number of DITs), and NINT (number of integrations). This exposure time does not take into account instrument and telescope overheads.
Exposure Time settings: NDIT: NINT:
Resultant spectrum including sky Object spectrum only Sky spectrum only S/N as a function of wavelength Total efficiency and wavelength Range Input spectrum in physical units