Planetary

iSHELL Echelle Simulator

This is an echelle simulator for iSHELL (Immersion Grating Echelle Spectrograph) at the NASA Infrared Telescope Facility (IRTF). It employs a set of ab-initio grating equations and simplified parameters that are accurate enough to describe the overall behavior of the cross-dispersors and the gratings. Developed by Sara Faggi, Geronimo Villanueva and Michael Mumma at NASA-GSFC.
 

	Setting: J H K L Lp M    Custom 0 1 2 3 4 gas    Upper-wavelength [um]: Slit [arcsec]: 5 10 15 25    Spectral unit: Wavenumber [cm-1] Wavelength [um]   Flip y-axis	Generate echellogram

3094.9253120.2171613113.9863139.4341623133.0483158.651633152.113177.8671643171.1723197.0831653190.2333216.2991663209.2953235.5151673228.3573254.7321683247.4193273.9471693266.483293.1641703285.5433312.381713304.6043331.5981723323.6673350.8131733342.7293370.031743361.793389.246175 1 2 3 4

 
Transmittance spectrum   

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