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////////////////////
// OFFICIAL CARDS //
////////////////////
/// Author of the data
pub const AUTHOR: &str = "AUTHOR";
/// bits per data value
pub const BITPIX: &str = "BITPIX";
/// value used for undefined array elements
pub const BLANK: &str = "BLANK";
/// Deprecated since version 1 of the standard
pub const BLOCKED: &str = "BLOCKED";
/// linear factor in scaling equation
pub const BSCALE: &str = "BSCALE";
/// physical units of the array values
pub const BUNIT: &str = "BUNIT";
/// zero point in scaling equation
pub const BZERO: &str = "BZERO";
/// coordinate increment along axis
pub const PREFIX_CDELT_N: &str = "CDELT";
/// descriptive comment
pub const COMMENT: &str = "COMMENT";
/// coordinate system rotation angle
pub const PREFIX_CROTA_N: &str = "CROTA";
/// coordinate system reference pixel
pub const PREFIX_CRPIX_N: &str = "CRPIX";
/// coordinate system value at reference pixel
pub const PREFIX_CRVAL_N: &str = "CRVAL";
/// name of the coordinate axis
pub const PREFIX_CTYPE_N: &str = "CTYPE";
/// maximum data value
pub const DATAMAX: &str = "DATAMAX";
/// minimum data value
pub const DATAMIN: &str = "DATAMIN";
/// date of file creation
pub const DATE: &str = "DATE";
/// date of the observation
pub const DATE_OBS: &str = "DATE-OBS";
/// marks the end of the header keywords
pub const END: &str = "END";
/// equinox of celestial coordinate system
pub const EPOCH: &str = "EPOCH";
/// equinox of celestial coordinate system
pub const EQUINOX: &str = "EQUINOX";
/// may the FITS file contain extensions?
pub const EXTEND: &str = "EXTEND";
/// hierarchical level of the extension
pub const EXTLEVEL: &str = "EXTLEVEL";
/// name of the extension
pub const EXTNAME: &str = "EXTNAME";
/// version of the extension
pub const EXTVER: &str = "EXTVER";
/// group count
pub const GCOUNT: &str = "GCOUNT";
/// indicates random groups structure
pub const GROUPS: &str = "GROUPS";
/// processing history of the data
pub const HISTORY: &str = "HISTORY";
/// name of instrument
pub const INSTRUME: &str = "INSTRUME";
/// number of axes
pub const NAXIS: &str = "NAXIS";
pub const PREFIX_NAXIS_N: &str = "NAXIS";
/// name of observed object
pub const OBJECT: &str = "OBJECT";
/// observer who acquired the data
pub const OBSERVER: &str = "OBSERVER";
/// organization responsible for the data
pub const ORIGIN: &str = "ORIGIN";
/// parameter count
pub const PCOUNT: &str = "PCOUNT";
/// parameter scaling factor
pub const PREFIX_PSCAL_N: &str = "PSCAL";
/// name of random groups parameter
pub const PREFIX_PTYPE_N: &str = "PTYPE";
/// parameter scaling zero point
pub const PREFIX_PZERO_N: &str = "PZERO";
/// bibliographic reference
pub const REFERENC: &str = "REFERENC";
/// does file conform to the Standard?
pub const SIMPLE: &str = "SIMPLE";
/// begining column number
pub const PREFIX_TBCOL_N: &str = "TBCOL";
/// dimensionality of the array
pub const PREFIX_TDIM_N: &str = "TDIM";
/// display format
pub const PREFIX_TDISP_N: &str = "TDISP";
/// name of telescope
pub const TELESCOP: &str = "TELESCOP";
/// number of columns in the table
pub const TFIELDS: &str = "TFIELDS";
/// column data format
pub const PREFIX_TFORM_N: &str = "TFORM";
/// offset to starting data heap address
pub const THEAP: &str = "THEAP";
/// value used to indicate undefined table element
pub const PREFIX_TNULL_N: &str = "TNULL";
/// linear data scaling factor
pub const PREFIX_TSCAL_N: &str = "TSCAL";
/// column name
pub const PREFIX_TTYPE_N: &str = "TTYPE";
/// column units
pub const PREFIX_TUNIT_N: &str = "TUNIT";
/// column scaling zero point
pub const PREFIX_TZERO_N: &str = "TZERO";
/// marks beginning of new HDU
pub const XTENSION: &str = "XTENSION";
//////////////////////
// ADDITIONAL CARDS //
//////////////////////
pub const FOCALLEN: &str = "FOCALLEN";
pub const EXPTIME: &str = "EXPTIME";
pub const CCD_TEMP: &str = "CCD-TEMP";
pub const BAYERPAT: &str = "BAYERPAT";
pub const CREATOR: &str = "CREATOR";
pub const XORGSUBF: &str = "XORGSUBF";
pub const YORGSUBF: &str = "YORGSUBF";
pub const XBINNING: &str = "XBINNING";
pub const YBINNING: &str = "YBINNING";
pub const CCDXBIN: &str = "CCDXBIN";
pub const CCDYBIN: &str = "CCDYBIN";
pub const XPIXSZ: &str = "XPIXSZ";
pub const YPIXSZ: &str = "YPIXSZ";
pub const IMAGETYP: &str = "IMAGETYP";
pub const EXPOSURE: &str = "EXPOSURE";
pub const RA: &str = "RA";
pub const DEC: &str = "DEC";
pub const GUIDECAM: &str = "GUIDECAM";
pub const FOCUSPOS: &str = "FOCUSPOS";
pub const SITELONG: &str = "SITELONG";
pub const SITELAT: &str = "SITELAT";
pub const IMAGEW: &str = "IMAGEW";
pub const IMAGEH: &str = "IMAGEH";