Here is an example of the output header of CATS data. Our format differs from the canonic FITS by the absence of compulsary spaces between the keyword, the sign '=' and the value of the keyword.

SIMPLE=T                       /
BITPIX=8                       / character information
NAXIS=0                        / no image data array present
EXTEND=T                       / there may be standard extensions
OBJECT=CATS SEARCH             / CATS search result
ORIGIN=SAO RAS
DATE=char                      / date of file creation
END

XTENSION=TABLE                 / F-file table for spectrum data
BITPIX=8                       / 8-bits per "pixel"
NAXIS=2                        / simple 2-D matrix
NAXIS1=93                      / No. of characters per row
NAXIS2=1000                    / number of lines
TFIELDS=15                     / there are 15 fields per row
EXTNAME=CATS                   / object name: CATS operation result

TTYPE1=CATALOG                 / reference: catalog name
TBCOL1=1                       / start in column 1
TFORM1=A5                      / xxxxx,xxx character field
TNULL1=n                       / null value

TTYPE2=NAME                    / name of source in catalog
TBCOL2=7                       / start in column 7
TFORM2=A16                     / 16 characters

TTYPE3=RAH                     / right ascension hours
TBCOL3=24                      / start in column 24
TFORM3=I2                      / 2 digit integer
TUNIT3=HR                      / units are hours
TNULL3=00                      / null value

TTYPE4=RAM                     / right ascension hours
TBCOL4=27                      / start in column 27
TFORM4=I2                      / 2 digit integer
TUNIT4=MIN                     / minutes of time
TNULL4=00                      / null value

TTYPE5=RAS                     / right ascension minutes
TBCOL5=30                      / start in column 30
TFORM5=E6.2                    / xx.xxx SP floating point
TUNIT5=S                       / seconds of time
TNULL5=00.000                  / null value

TTYPE6=ERAS                    / error of right ascension seconds
TBCOL6=37                      / start in column 37
TFORM6=A6                      / xx.xxx SP floating point or 'n' char.field
TUNIT6=S                       / seconds of time
TNULL6=n                       / null value

TTYPE7=DECDSIGN                / declination sign
TBCOL7=45                      / start in column 45
TFORM7=A1                      / charachter field
TNULL7=' '                     / null value

TTYPE8=DECD                    / declination degrees
TBCOL8=46                      / start in column 46
TFORM8=I2                      / 2 digit integer
TUNIT8=DEG                     / degrees
TNULL8=00                      / null value

TTYPE9=DECM                    / declination minutes
TBCOL9=49                      / start in column 49
TFORM9=I2                      / 2 digit integer
TUNIT9=ARCMIN                  / minutes (angle)
TNULL9=00                      / null value

TTYPE10=DECS                   / declination seconds
TBCOL10=52                     / start in column 52
TFORM10=E5.2                   / xx.xx SP floating point
TUNIT10=ARCSEC                 / seconds (angle)
TNULL10=00.00                  / null value

TTYPE11=EDECS                  / error of declination seconds
TBCOL11=58                     / start in column 58
TFORM11=A5                     / xx.xx SP floating point or '?' char.field
TUNIT11=ARCSEC                 / seconds (angle)
TNULL11=n                      / null value

TTYPE12=FREQ                   / frequency
TBCOL12=64                     / start in column 64
TFORM12=A7                     / xxxxxx float.point or 'n' char.field
TUNIT12=MHZ                    / MegaHerz
TNULL12=n                      / null value

TTYPE13=FLUXD                  / flux density
TBCOL13=72                     / start in column 72
TFORM13=A9                     / xxxxxx SP floating point or 'n' char.field
TUNIT13=JY                     / Jansky
TNULL13=n                      / null value

TTYPE14=EFLUXD                 / error of flux density
TBCOL14=82                     / start in column 82
TFORM14=A7                     / xxxxx SP floating point or 'n' char.field
TUNIT14=JY                     / Jansky
TNULL14=n                      / null value

TTYPE15=EPOCH                  / epoch coordinates: B, J or year
TBCOL15=90                     / start in column 90
TFORM15=A6                     / character field
TNULL15=?                      / null value

COMMENT  Any comments
HISTORY  History of data operation
HISTORY
END
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............. Table of rows of ASCII data ...............
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