Loading Packages
Tasks and Commands
Running a Task
Background Tasks
Escaping System Level Commands
Piping and Redirection
Batch Jobs
Setting Parameters
Parameters on the Command Line: Positional and Hidden
Viewing Parameters with lpar
Setting Parameters with epar
Parameter Data Types--What to Specify
Restoring Parameter Default Values
Setting Environment Variables

Working with Files

File Structures
Directory Specification
Specifying Files

On-Line Help

Getting Help
Finding Tasks
Using apropos
STSDAS Package Structure
User Support--HotSeat

Using Images

Displaying Images
Printing Images
Image Sections and Groups
Tools for Working with Images

STSDAS Tables

Networking

The Irafhosts File
VAX-Specific Details
Networking Syntax
Examples
Troubleshooting Networking

CHAPTER 3: - Data Formats

IRAF Images

Advantages and Problems with IRAF Images
Where Pixel Files Get Stored
Examining the Header

STSDAS Images

Data Structure Overview
Image Descriptors--Header Keywords
Group Descriptors--Group Parameter Block
Disk Binary Formats--Physical Implementation

Working With Multigroup Images

Omitting File Extensions
Specifying Groups
Specifying Image Sections
Image Types

HST Datasets

Instrument-Specific Data Structures
Astrometry Data

World Coordinates

Table Format

CHAPTER 4: - General Utilities

FITS Input/Output in fitsio

The FITS Format
FITS Capabilities in STSDAS/TABLES
Scaling Data
Tutorial: Reading and Writing FITS Files
Using Tape Drives
Reading FITS Tapes and Files
Reconstructing GEIS Images From Multiple FITS Files
Writing FITS Tapes and Files

STSDAS Tables: the ttools Package

The ttools Package

Graphics and Plotting

Graphics Tasks Overview
Tutorial: Plotting and Other Graphics
Basic Plotting Tools
Printing Plots
Device Parameter
Snap
Using fwplot
Using splot
Using implot
Contour Plots
Using igi
PostScript Plots

The toolbox Package

General Utilities: tools
Working with Image Headers: headers
Working with Images: imgtools
Converting Files: convfile

CHAPTER 5: - General Data Analysis Facilities

Image Restoration

Overview of Image Restoration
Algorithms and Methods in STSDAS
Richardson-Lucy Algorithm
Maximum Entropy Method
s-CLEAN
Wiener Filter
Adaptive Filters
Image Preparation
Cosmic Ray Removal and Bad Pixel Masking
Saturated Pixels
Boundary Extension
Combining Images of Different Resolution
PSF Preparation

Interactive Curve Fitting

Examples of Using Fitting Tasks

Fourier Analysis

The Guide Star Catalog and Plate Solutions

Isophote Fitting

Statistics

Overview of Survival Analysis
Overview of the Software
Cautions and Caveats

Timeseries

Other STSDAS Packages

Test Data
Playpen
User-Contributed Software: contrib

CHAPTER 6: - Instrument-Specific Software

The Off-Line Calibration Process

General Calibration Operations

Editing Headers with chcalpar
Reference Files

Calibration Data Base

Synthetic Photometry

Example of Using countrate
About countrate
Sample countrate Run

Faint Object Camera

FOC Geometric Processing
Optical Distortion
Spectrograph Mode
Producing FOC Photometric Files

Wide Field/Planetary Cameras

Faint Object Spectrograph

Calibration Reference Files and Tables
RSDP Calibration Code--calfos
Observation Planning and Instrument Configuration
Data Reduction and Display

Goddard High Resolution Spectrograph

Calibration Reference Files and Tables
The calhrs Calibration Code
Observation Planning and Instrument Configuration
Data Reduction and Display

High Speed Photometer

RSDP-Related Calibration Software
Non-RSDP-Related Calibration Software

CHAPTER 7: - Programming

CL as a Programming Language

Writing Scripts
Using mkscript
Psets and mkscript
mkscript Task Parameters
Example

The IMFORT Interface

The F77VOS Interface

SPP

CHAPTER 8: - Troubleshooting

Basic Problems

Tape Drives

What's On Your Tape
Device Aliases--tapecap File
Clients and Hosts--IRAF Networking
Parameters
Full Tapes
System Problems
CD-ROM

IRAF Networking

Graphics Output: Images, Displays, Printing and Plotting

Images
imdir--the Image Directory
imtype--Image Formats
Plots
Disappearing Plots
Printed Plots Differ From Screen
Other Plot Problems
Devices
Displays
SAOimage Problems
Printers

Files and Directories

Calibration Files
File Format Conversion
Tables
Other File Questions

Installation and Site Management

Installation Problems
External Packages
System Problems
The Help Data Base
File Attributes
Quotas

APPENDIX A: - CL Crib Sheet

Environment Variables
CL Parameters
I/O Redirection
Directory Specification
History Editing
Background Jobs
Arithmetic and Logical Expressions
Mathematical Functions
CL Language Components and Control Structures
String Functions
Data Types for Declarations
Optional Fields for Data Declarations

APPENDIX B: - Bibliography

IRAF Documentation
STSDAS Documentation
FITS Format
Image Restoration References
References for Statistical Analysis Methods
Synthetic Photometry

APPENDIX C: - Glossary

Index

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