Wavelength Accuracy of the LWS

The following plot shows residuals to the grating wavelength fits. Note, an error of 0.03um at 50um is 180 km/s and 0.1 um at 200 um is 150 km/s. The Fabry Perot wavelength calibration is thought to have similar uncertainties relative to its resolution.

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Last update: August 1998

Steve Lord -- lord@heaven.ipac.caltech.edu