APPLICATION OF SPECTROSCOPIC DIAGNOSTICS TO EARLY OBSERVATIONS WITH THE SOHO CORONAL DIAGNOSTIC SPECTROMETER

The Coronal Diagnostic Spectrometer (CDS) has as a scientific goal the determination of the physical parameters of the solar plasma using sp ectroscopic diagnostic techniques. Absolute intensities and intensity ratios of the EUV spectral emission lints can be used to obtain inform ation on the electron density and temperature structure, element abund ances, and dynamic nature of different features in the solar atmospher e. To ensure that these techniques are accurate it is necessary to int erface solar analysis programs with the best available atomic data cal culations. Progress is reported on this work in relation to CDS observ ations.