GMTIFS IFS Performance Calculator

IFS Parameters
Spectrograph:  Sky:
Spaxel Scale Temperature   °K
Grating Emissivity 
Temperature   K OH continuum   photon/s/m2/arcsec2/µm
Exposure:  OH line   photon/s/m2/arcsec2
Integration time   sec; cycles   Telescope:
Sky frames averaged  Temperature   °K
Summing aperture diameter   arcsec Emissivity 
System:        AB mag    Vega mag     Adaptive Optics:
Objective:    Star    Galaxy    Line  Temperature   °K
Star brightness   mag Emissivity 
Strehl ratio  Detector:
Galaxy brightness   mag/arcsec2 Read noise   e-
Line brightness   erg/s/cm2/arcsec2 Dark current   e-/s/pix
Line FWHM   km/s Quantum efficiency   to  µm
     Well depth   e-
IFS Results
Adopted integration time   s
Adopted cycles 
Star signal   e-/pix
Galaxy signal   e-/pix
Line signal   e-/pix
Sky thermal signal   e-/pix
Sky OH continuum signal  e-/pix
Sky OH line signal   e-/pix
Telescope thermal signal   e-/pix
AOS thermal signal   e-/pix
Dewar signal   e-/pix
Dark signal   e-/pix
Total signal   e-/pix
Total noise   e-/pix
Signal-to-noise ratio   /spaxel
Signal-to-noise ratio   /aperture

Hard at Work! This tool models the performance of the Giant Magellan Telescope Integral-Field Spectrograph (GMTIFS).
Peter McGregor ( / Last updated November 1, 2010.
Research School of Astronomy and Astrophysics, Institute of Advanced Studies, The Australian National University.