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Hubble Space Telescope
DrizzlePac: Getting Started

The DrizzlePac Handbook was written for both novice users and seasoned “drizzlers.” While users are free to use this document any way they wish, the following are some recommendations:
Users new to HST data processing and analysis should familiarize themselves with STSDAS before using this handbook–the HST Data Handbook Introduction is a good place to start. For work on a specific instrument, a review of the instrument’s data handbook is recommended. After that, they may want to take a brief look at Chapters 1 and 4 of this handbook, then take an AstroDrizzle test drive using the example in Section 7.1.

There is a wide range of drizzling experience among users who are already familiar with HST data analysis.

Users new to drizzling should first review Chapters 1 and 2 to become familiar with Drizzle concepts, then learn about the DrizzlePac package in Chapters 4, 5, and 6. To get a taste of the software, try the example in Section 7.1.

Experienced Drizzlers may wish to start with learning about the differences between MultiDrizzle and AstroDrizzle (Chapters 1 and 4), learn about the new Python interfaces in Chapter 5, then come up to speed with DrizzlePac in Chapter 6. The rest of the document could be used as a searchable reference.

The user interface for the latest STSDAS software packages, including DrizzlePac, is not the same as that in IRAF. Although a few common IRAF commands have been retained for convenience, most command-line syntax is now in Python, and users also have the option to run many tasks from a GUI called TEAL that is similar to the PyRAF GUI. Additional information is available in Chapter 5.