Estimates of the NICMOS system sensitivities have been computed for each filter/detector combination using the flight filter transmission curves measured at crogenic temperature at Ball Aerospace, and the detector QE measurements made at University of Arizona. Other HST, NICMOS, and background elements have been approximated from best estimates of overall performance. In particular, the following assumptions have been made:

 Temperature of the HST optics = 293K
 Temperature of the NICMOS optics = 275K
 The temperature of the zodiacal dust = 265K
 Emissivity of the HST = 0.1
 Emissivity of the NICMOS = 0.15
 The effective HST telescope area in square meters = 4.07
 Efficiency of the system excluding the filter and detector = 0.65
 Efficiency of transmitting HST thermal radiation = 0.722
 Efficiency of transmitting NICMOS thermal radiation = 0.85
 The detector noise in electrons = 35

Sensitivity curves may be viewed by clicking on [GRAPH] to the left of the description of the Camera/Filter combination desired.

Clicking on the name or description of the filter will link to a summary of the sensitivity calculations.

CAMERA 1

        ## MMMMMM PPPPPP DESCRIPTION OF SPECTRAL ELEMENT
[GRAPH] 2  C1F3   F097N  S III Continuum
[GRAPH] 3  C1F2   F095N  S III 
[GRAPH] 4  C1F1   F090M  0.8-1.0 microns
[GRAPH] 5  C1F7   F110M  1.0-1.2 microns
[GRAPH] 6  C1F5   F108N  He I
[GRAPH] 7  C1F8   F113N  He I Continuum
[GRAPH] 8  C1F11  F160W  1.4-1.8 microns
[GRAPH] 9  C1F10  F145M  Water
[GRAPH] 10 C1F14  F166N  Fe II Continuum
[GRAPH] 11 C1F12  F164N  Fe II
[GRAPH] 12 C1F13  F165M  1.55-1.75 microns
[GRAPH] 13 C1F17  F190N  Paschen Alpha Continuum
[GRAPH] 14 C1F16  F187N  Paschen Alpha
[GRAPH] 15 C1F15  F170M  1.6-1.8 microns
[GRAPH] 16 C1F19  F140W  1.0-1.8 microns (Broad Band)
[GRAPH] 17 C2F17  POL0S   1.9 - 2.1 micron Polarizer - 0 deg 
[GRAPH] 18 C2F17  POL120S 0.81 - 1.29 micron Polarizer - 120 deg
[GRAPH] 19 C2F17  POL240S 0.81 - 1.29 micron Polarizer - 240 deg
[GRAPH] 20 C1F20  F110W  0.81 - 1.29 microns

CAMERA 2

        ## MMMMMM PPPPPP DESCRIPTION OF SPECTRAL ELEMENT
[GRAPH] 2  C2F1   F165M  1.55-1.75 microns
[GRAPH] 3  C23F2  F160W  1.4-1.8 microns (Minimum Background)
[GRAPH] 4  C23F1  F110W  0.8-1.4 microns
[GRAPH] 5  C2F6   F205W  1.75-2.35 microns (Broad Band)
[GRAPH] 6  C2F11  F237M  CO
[GRAPH] 7  C2F10  F222M  CO Continuum
[GRAPH] 8  C2F9   F216N  Brackett Gamma
[GRAPH] 9  C23F6  F215N  H2 & Brackett Gamma Continuum
[GRAPH] 10 C23F5  F212N  H2
[GRAPH] 11 C23F4  F190N  Paschen Alpha Continuum
[GRAPH] 12 C23F3  F187N  Paschen Alpha
[GRAPH] 13 C2F4   F187W  1.75-2.0 microns
[GRAPH] 14 C2F3   F180M  HCO2 & C2
[GRAPH] 15 C2F2   F171M  HCO2 & C2 Continuum
[GRAPH] 16 C2F8   F207M  2.0-2.15 microns
[GRAPH] 17 C2F17  POL0L   1.9 - 2.1 micron Polarizer - 0 deg 
[GRAPH] 18 C2F17  POL120L 1.9 - 2.1 micron Polarizer - 120 deg
[GRAPH] 19 C2F17  POL240L 1.9 - 2.1 micron Polarizer - 240 deg
[GRAPH] 20 C2F20  F204M  1.99-2.09 microns  Methane

CAMERA 3

        ## MMMMMM PPPPPP DESCRIPTION OF SPECTRAL ELEMENT
[GRAPH] 2  C3F6   F175W  1.2-2.3 microns
[GRAPH] 3  C23F6  F215N  H2 Continuum
[GRAPH] 4  C23F5  F212N  H2
[GRAPH] 6  C3F10  F240M  CO Band
[GRAPH] 7  C3F9   F222M  CO Band Continuum
[GRAPH] 8  C3F8   F200N  Si VI Continuum
[GRAPH] 9  C3F7   F196N  Si V
[GRAPH] 10 C23F4  F190N  Paschen Alpha Continuum
[GRAPH] 11 C23F3  F187N  Paschen Alpha
[GRAPH] 13 C3F3   F150W  Grism B Continuum
[GRAPH] 14 C3F4   F164N  Fe II
[GRAPH] 15 C3F5   F166N  Fe II Continuum
[GRAPH] 16 C23F2  F160W  1.4-1.8 microns (Minimum Background)
[GRAPH] 17 C3F2   F113N  He I Continuum
[GRAPH] 18 C3F1   F108N  He
[GRAPH] 20 C23F1  F110W  0.8-1.4 microns