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

Estimated End-of-Life NIRISS Imaging Sensitivity 

The following table gives the point-source flux
that can be obtained with S/N = 10 in 10 ks.
End-of-life throughputs are assumed.

======================
Filter   Sensitivity
           [nJy]	  
----------------------
F090W       20.0
F115W       17.5
F150W       14.3
F200W       11.9           
F277W       14.5
F356W       12.6
F444W       25.1
----------------------

Assumptions:
OTE Transmission:         specified by MR-211
Zodiacal Background:      specified by MR-51
Detector CDS Read Noise:     16 electrons
Detector Dark Current:    0.015 electrons/s
Extraction Radius:        1.54  pixels for wavelengths up to 2.5 microns
                          2.50  pixels for wavelengths between 2.5 and 4.0 
                                microns
                          2.72  pixels for wavelengths beyond 4.0 microns