Chapter 5:
STIS Data Analysis

5.1 Data Reduction and Analysis Applications

5.1.1 STIS-Specific STSDAS Tasks

5.1.2 FITS Table Tasks

5.1.3 General Spectral Display and Analysis Tasks

5.1.4 MultiDrizzle for Image Combination

5.1.5 MULTISPEC for Slitless Spectral Images

5.2 Evaluating Target Acquisitions and Guiding

5.2.1 Target Acquisition Basics

5.2.2 ACQ Data

5.2.3 ACQ/Peak Data

5.2.4 The tastis Task

5.2.5 Guiding Error for Single Guide Star Mode

5.3 Working with Imaging Data

5.3.1 Sensitivity Units and Conversions

5.3.2 Spatial Information

5.3.3 Combining Images

5.4 Working with Spectral Images

5.4.1 Sensitivity Units and Conversions

5.4.2 Wavelength and Spatial Information

5.4.3 Improving the Rectification of Spectral Images

5.4.4 Combining Undithered Spectral Images

5.4.5 Combining Dithered Spectral Images

5.4.6 Producing Rectified Spectral Images for Long-Slit Echelle Data

5.5 Working with Extracted Spectra

5.5.1 Working With _x1d Files

5.5.2 Using the x1d Task to Recalibrate Data

5.5.3 Splicing Extracted Spectra

5.6 Working with TIME-TAG Data

5.6.1 Heliocentric and Barycentric Time Correction

5.6.2 Converting TIME-TAG Data to an Image

5.6.3 Echelle TIME-TAG Data

5.6.4 Timing Analysis Tasks

5.6.5 Merging TIME-TAG Event Tables

5.6.6 TIME-TAG Data Calibration