Space Telescope Science Institute
FGS Data Handbook
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Fine Guidance SensorData Handbook > Preface > Typographic Conventions

Typographic Conventions
To help you understand the material in this Data Handbook, we will use a few consistent typographic conventions.
Visual Cues
The following typographic cues are used:
bold words identify an STSDAS, IRAF, or PyRAF task or package name.
typewriter-like words identify a file name, system command, or response that is typed or displayed.
italic type indicates a new term, an important point, a mathematical ­variable, or a task parameter.
SMALL CAPS identifies a header keyword.
Occasional side comments point out three types of information, each identified by an icon in the left margin.
Ed Nelan and Russ Makidon (Editors, FGS Data Handbook)
Bahram Mobasher (Chief Editor, HST Data Handbook)

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