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SOFI Exposure Time Calculator

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Infrared Spectroscopy Mode Version 5.0.0
Description.
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Input Flux Distribution

 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 
Spatial Distribution: Point Source    Extended Source
Magnitudes are given per square arcsec for extended sources

Sky Conditions

Airmass 
Seeing   arcsec

Instrument Setup


Slit:  arcsec
  
Grisms:
	Low Resolution:
    
	Medium Resolution:

Detector

DIT:  sec 

Results

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: 

Plots: Toggle All / No Plots

 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


   

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