Instrument Design   Apertures   Filters   Gratings   Detectors Performance   Image Quality   Spectral Resolution   Throughput   Sensitivity   Background   Accuracy   Anomalies Observing Strategy   Target Acquisition   Spectroscopy   Imaging   Pushing the Limits Proposing   Phase 1   Phase 2   Program Status Data Analysis   Data Files   Reference Files   Visiting STScI Software Tools Document Archive	HST Data Handbook for STIS 3.3 Data Flow Through calstis This section details the data flow through the calstis pipeline for each calibrated operating mode, showing the switches, the reference file inputs, the science file inputs, and the output products. These details are shown as flow charts in figure 3.5 through figure 3.11. The next section describes the tasks corresponding to the various calibration switches.    Note that some tasks are not implemented at this time. These appear in grey text in the flow charts, and are noted in the descriptions given in the subsequent section. Figure 3.5: 2-D CCD Data Reduction Common to Imaging and Spectroscopy Figure 3.6: 2-D MAMA Data Reduction Common to Imaging and Spectroscopy Figure 3.7: Flow of Imaging Data through Calstis-7, 2D Rectification Figure 3.8: Flow of Spectroscopic Data through Calstis-4, wavecal Processing Figure 3.9: Flow of Spectroscopic Data through calstis-6, 1-D Extraction Figure 3.10: Flow of Spectroscopic Data through calstis-7, 2-D Rectification Figure 3.11: Flow through calstis-8, Summing repeatobs Exposures   Space Telescope Science Institute http://www.stsci.edu Voice: (410) 338-1082 help@stsci.edu

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