GHRS Instrument Science Report 035 Wavelength Calibration of GHRS: Analysis of Side 2 Data (Proposals 2844 and 2845) 04/91 D.K. Duncan, L. Ferrarese, J.R. Walsh, and L.E. Walter Abstract excerpted from the report: Results of SV tests on the accuracy of routine spectral calibration lamp wavelength calibration of GHRS Side 2 data are reported. The Dispersion Constants reference table used for all pipeline calibration to date was found to contain some bad values which can lead to offsets of up to 1 Angstrom on the wavelength scale. Using a correct, though still pre-flight, Dispersion Constants reference table, routine accuracy of 0.02 Angstroms or better is produced. For first order gratings, re-calibration of data can be expected to lead to wavelength accuracy of around 0.006 Angstroms. Note: Dispersion Constants reference table c3v1133gz.cz6 fixed this problem as of 31 Mar 92.