Photometric systemDetector type. 0:Energy counter, 1:Photon counter.InstrumentObservational facilityTransmission componentsReference wavelength. Defined as the same than the pivot wavelength.Mean wavelength. Defined as integ[x*filter(x) dx]/integ[filter(x) dx]Effective wavelength. Defined as integ[x*filter(x)*vega(x) dx]/integ[filter(x)*vega(x) dx]Minimum filter wavelength. Defined as the first lambda value with a transmission at least 1% of maximum transmissionMaximum filter wavelength. Defined as the last lambda value with a transmission at least 1% of maximum transmissionEffective width. Defined as integ[x*filter(x) dx].\nEquivalent to the horizontal size of a rectangle with height equal to maximum transmission and with the same area that the one covered by the filter transmission curve.Central wavelength. Defined as the central wavelength between the two points defining FWMHPeak wavelength. Defined as sqrt{integ[x*filter(x) dx]/integ[filter(x) dx/x]}Peak wavelength. Defined as the lambda value with larger transmissionPhoton distribution based effective wavelength. Defined as integ[x^2*filter(x)*vega(x) dx]/integ[x*filter(x)*vega(x) dx]Full width at half maximum. Defined as the difference between the two wavelengths for which filter transmission is half maximumSun flux
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