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James Webb Space Telescope
Estimated NIRISS Imaging Sensitivity (S/N = 10 in 10000 seconds)

Estimated NIRISS Imaging Sensitivity (S/N = 10 in 10000 seconds)
Based on the Bohlin Vega model spectrum from
http://www.stsci.edu/hst/observatory/cdbs/calspec.html.

Filter    Central      Sensitivity     magnitude
         Wavelength    
         (microns)        (nJy)                 
-----------------------------------------------------
F090W      0.90           11.28          28.28
F115W      1.15           11.22          28.06
F140M      1.40           14.80          27.43
F150W      1.50            9.19          27.83
F158M      1.59           12.88          27.39
F200W      1.99            7.81          27.54
F277W      2.77            6.63          27.09
F356W      3.60            6.89          26.56
F380M      3.80           18.74          25.34
F430M      4.27           28.32          24.65
F444W      4.44           12.29          25.49
F480M      4.81           36.85          24.14
-----------------------------------------------------

Magnitudes are estimated by scaling from the Vega model 
spectrum, which is assumed to have m=0.03 in all filters.  
The sensitivity values in nJy are for a Vega-like spectrum 
and would be somewhat different if the source spectrum had 
a different shape. The values are quoted for the central 
wavelength of each filter.