Pyfits getdata
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There is a set of standard keywords, some mandatory and others "=" sign and simply uses positions 11 to 80, to store the value. The special keywords HISTORY and COMMENT, do not use Which case the entire record will be filled with ASCII space character The record and the characters from that point, through the 80thĬharacter becomes the comment.
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The value of the keyword indicates the beginning of a comment for The 10th position, followed by a value for the keyword. Length of 8 characters, an "=" sign at the 9th position, a space at A FITS file withĮxtensions is referred to as a Multi-Extension FITS (MEF) file.Ī header consists of records, also called card images, each havingĪ maximum of 80 characters. A FITS file with only the Primary HDU is refered to as a BasicįITS file or a Single Image FITS (SIF) file. Simplest valid FITS file is one with just the header of the Primary In a valid FITS file the data part of an HDU can be empty. Other HDUs, if present, are referred to as An HDU consists of a header, which describes the dataĬontained in the HDU, followed by the data itself. Recognized standard for storing astronomical data.Ī FITS file consists of one or more header and data units, referred toĪs HDUs. Getting information from headers of FITS filesįITS stands for Flexibile Image Transport System, and is the IAU.
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