This includes display of the information to allow visual analysis and assessment. It also includes the preparation of publication quality graphics. Most of the software tools needed to analyze reduced data from STIS are already available in numerous astronomical software packages. In addition to being a powerful programming language, IDL's intrinsic functions, routines, and application libraries makes it into a powerful data analysis and display package. General plotting package including simple vector plots, contour plots, two-dimensional fields and vector flow plots, and an interactive plotting tool.
Routines allow complete plot annotation and interactive cursor input.
Linear, bi-linear, splines, and image warping. Matrix manipulation, decomposition, and inversion, integration, differentiation, solutions to linear and non-linear equations, spline interpolation, wavelet transforms, and roots of complex polynomials. The library is located at GSFC and is funded under the NASA Astrophysical Data Program. Astrometric plate solutions, update of FITS header astrometry information during image manipulation, and support of ST ScI guide star survey images. SDAS images and tables will be the primary format for internal storage of STIS data and calibration files.