HST Data Handbook for ACS

Chapter 2:
ACS Data Structure

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2.1 ACS File Structure
2.2 Types of ACS Files
    2.2.1 Data Files and Suffixes
    2.2.2 Association Tables
    2.2.3 Trailer Files
2.3 Data Storage Requirements
2.4 Headers and Keywords
2.5 Quicklook PDF Products
   Visit-level Pages
   Exposure-level Pages

This chapter describes how ACS observations are stored as data files, describes ACS associations, and provides a list of FITS file header keywords.

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