The UH IfA NeXTStep CCD System User's Manual

The Output Data Format

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This page describes the data format that is used by the program described in this manual.

The ccd readout program produces standard 16-bit signed FITS files. The dynamic range of the data is from 0 to 65535, which will not fit in a 16-bit signed word; to get around this limitation, 32768 has been subtracted from the data values, and BZERO is set appropriately (BSCALE is always 1).

This document was written by Hubert Yamada (yamada@ifa.hawaii.edu) and Kevin Jim (kjim@terrasys.com).

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This page is maintained by Hubert Yamada (yamada@ifa.hawaii.edu) who claims sole authorship and responsibility for all content presented here unless explicitly stated otherwise. The contents of this page are not the opinions of any individual mentioned here, The University of Hawai`i, or of The Institute for Astronomy unless explicitly stated otherwise.