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 

Sky Conditions

Moon FLI: Airmass: Almanac Almanac Time UT Time step forward/back sec min hour day week month year MJD Target Target coordinates Name or ID:   α °      δ ° toggle units      UT rise culm. set Hour Angle azimuth altitude zenith distance airmass FLI moon/sun phase angle moon/target separation Target Moon Sun An advanced almanac is available in the ESO SkyCalc sky model calculator

PWV:     0.10 0.25 0.50 1.0 1.5 2.5 3.5 5.0 7.5 10.0 20.0 30.0 mm     Probability % of realising the PWV ≤ 10.00 mm

Seeing/Image Quality: The seeing and image quality are irrelevant for extended sources Turbulence Category: 10% (seeing ≤ 0.5") 20% (seeing ≤ 0.6") 30% (seeing ≤ 0.7") 50% (seeing ≤ 0.8") 70% (seeing ≤ 1.0") 85% (seeing ≤ 1.3") 100% (all)   (FWHM of the atmospheric PSF outside the telescope at zenith at 500 nm) IQ: arcsec FWHM at the airmass and reference wavelength               The corresponding seeing and turbulence category will be indicated in the output page Image Quality is not a parameter in AO modes

Instrument Setup

Results

The total exposure time is the product of DIT (Detector Integration Time) by NDIT (number of DITs). Instrument and telescope overheads are not taken into account.

Plots:Toggle All / No Plots

Detector Illumination
S/N as a function of Exposure Time
Total Efficiency
S/N as a function of seeing (only for point-source)
Input spectrum in physical units
Sky spectrum
Sky transmission spectrum

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