Semantics of FITS file UITfuv2582gc.fits

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comment Semantics of "FITS file UITfuv2582gc.fits": Described from its headers, by archive-manager's RepInfo Tools (FITS Standard 4.0, https://fits.gsfc.nasa.gov/fits_standard.html): 1 HDU. hdu1: HDU 1, the primary HDU, a 512 x 512 array Each header is a record of its keyword records, 80 characters each, with what each keyword means from the FITS Standard's dictionary; each table's columns and each image's pixels are typed, named and given units, scale, offset and fill value as the header says. - hdu1_header: Header of HDU 1, the primary HDU, a 512 x 512 array: The header of HDU 1, the primary HDU, a 512 x 512 array: 132 keyword records of 80 ASCII characters, the last END, in 4 blocks. - hdu1_header.simple: SIMPLE: The value field shall contain a logical constant with the value T if the file conforms to this Standard. This keyword is mandatory for the primary header and must not appear in extension headers.7 A value of F signifies that the file does not conform to this Standard. This record's comment: "FLIGHT22 05Apr96 RSH" - hdu1_header.bitpix: BITPIX: The value field shall contain an integer. The absolute value is used in computing the sizes of data structures. It shall specify the number of bits that represent a data value in the associated data array. The only valid values of BITPIX are 8 (character or unsigned binary integer), 16, 32 and 64 (two's complement binary integers of that many bits), -32 (IEEE single-precision floating point) and -64 (IEEE double-precision floating point). This record's comment: "SIGNED 16-BIT INTEGERS" - hdu1_header.naxis: NAXIS: The value field shall contain a non-negative integer no greater than 999 representing the number of axes in the associated data array. A value of zero signifies that no data follow the header in the HDU. This record's comment: "2-DIMENSIONAL IMAGES" - hdu1_header.naxis1: NAXIS1: The NAXISn keywords must be present for all values n = 1, . . . , NAXIS, in increasing order of n, and for no other values of n. The value field of this indexed keyword shall contain a non-negative integer representing the number of elements along Axis n of a data array. This record's comment: "SAMPLES PER LINE" - hdu1_header.naxis2: NAXIS2: The NAXISn keywords must be present for all values n = 1, . . . , NAXIS, in increasing order of n, and for no other values of n. The value field of this indexed keyword shall contain a non-negative integer representing the number of elements along Axis n of a data array. This record's comment: "LINES PER IMAGE" - hdu1_header.extend: EXTEND: The value field shall contain a logical value indicating whether the FITS file is allowed to contain conforming extensions following the primary HDU. This record's comment: "FILE MAY HAVE EXTENSIONS" - hdu1_header.datatype: DATATYPE: A keyword the FITS Standard doesn't define. This record's comment: "SAME INFORMATION AS BITPIX" - hdu1_header.telescop: TELESCOP: The value field shall contain a character string identifying the telescope used to acquire the data associated with the header. This record's comment: "TELECOPE USED" - hdu1_header.instrume: INSTRUME: The value field shall contain a character string identifying the instrument used to acquire the data associated with the header. This record's comment: "DETECTOR USED" - hdu1_header.object: OBJECT: The value field shall contain a character string giving a name for the object observed. This record's comment: "TARGET NAME" - hdu1_header.object2: OBJECT2: A keyword the FITS Standard doesn't define. This record's comment: "ALTERNATIVE TARGET NAME" - hdu1_header.category: CATEGORY: A keyword the FITS Standard doesn't define. This record's comment: "TARGET CATEGORY" - hdu1_header.jotfid: JOTFID: A keyword the FITS Standard doesn't define. This record's comment: "ASTRO MISSION TARGET ID" - hdu1_header.image: IMAGE: A keyword the FITS Standard doesn't define. This record's comment: "IMAGE NUMBER" - hdu1_header.origin: ORIGIN: The value field shall contain a character string identifying the organization or institution responsible for creating the FITS file. This record's comment: "WHERE TAPE WRITTEN" - hdu1_header.astro: ASTRO: A keyword the FITS Standard doesn't define. This record's comment: "ASTRO MISSION NUMBER" - hdu1_header.frameno: FRAMENO: A keyword the FITS Standard doesn't define. This record's comment: "ANNOTATED FRAME NUMBER" - hdu1_header.cathode: CATHODE: A keyword the FITS Standard doesn't define. This record's comment: "IMAGE TUBE PHOTOCATHODE" - hdu1_header.filter: FILTER: A keyword the FITS Standard doesn't define. This record's comment: "CAMERA/FILTER IDENTIFIER" - hdu1_header.pdsdatim: PDSDATIM: A keyword the FITS Standard doesn't define. This record's comment: "MICRODENSITOMETRY DATE & TIME" - hdu1_header.pdsid: PDSID: A keyword the FITS Standard doesn't define. This record's comment: "MICRODENSITOMETER IDENT" - hdu1_header.pdsapert: PDSAPERT: A keyword the FITS Standard doesn't define. This record's comment: "MICROD. APERTURE, MICRONS" - hdu1_header.pdsstep: PDSSTEP: A keyword the FITS Standard doesn't define. This record's comment: "MICROD. STEP SIZE, MICRONS" - hdu1_header.pixelsiz: PIXELSIZ: A keyword the FITS Standard doesn't define. This record's comment: "CURRENT PIXEL SIZE, MICRONS" - hdu1_header.equinox: EQUINOX: The epoch of the mean equator and equinox, in years, for celestial coordinate systems based on a mean equator and equinox (FK4, FK5); EQUINOXa for an alternate coordinate description a. This record's comment: "EQUINOX OF BEST COORDINATES" - hdu1_header.nomra: NOMRA: A keyword the FITS Standard doesn't define. This record's comment: "1950 I.P.S. R.A., DEGREES" - hdu1_header.nomdec: NOMDEC: A keyword the FITS Standard doesn't define. This record's comment: "1950 I.P.S. DEC., DEGREES" - hdu1_header.nomroll: NOMROLL: A keyword the FITS Standard doesn't define. This record's comment: "I.P.S. ROLL ANGLE" - hdu1_header.nomscale: NOMSCALE: A keyword the FITS Standard doesn't define. This record's comment: "NOMINAL PLATE SCL (ARCSEC/MM)" - hdu1_header.calibcon: CALIBCON: A keyword the FITS Standard doesn't define. This record's comment: "PREFLIGHT LAB CALIB FOR CAMERA" - hdu1_header.fexptime: FEXPTIME: A keyword the FITS Standard doesn't define. This record's comment: "EXPOSURE TIME, APPLICABLE FRM" - hdu1_header.date_obs: DATE-OBS: The format of the value field for DATE-OBS keywords shall follow the prescriptions for the DATE keyword (Sect. 4.4.2 and Sect. 9.1.1 Either the four-digit year format or the two-digit year format may be used for observation dates from 1900 through 1999, although the four-digit format is recommended. This record's comment: "DATE OF OBSERVATION (GMT)" - hdu1_header.time_obs: TIME-OBS: A keyword the FITS Standard doesn't define. This record's comment: "TIME OF OBS (HOURS GMT)" - hdu1_header.bscale: BSCALE: This keyword shall be used, along with the BZERO keyword, to linearly scale the array pixel values (i.e., the actual values stored in the FITS file) to transform them into the physical values that they represent using Eq. 3. This record's comment: "CALIBRATION CONST" - hdu1_header.bunit: BUNIT: The value field shall contain a character string describing the physical units in which the quantities in the array, after application of BSCALE and BZERO, are expressed. These units must follow the prescriptions of Sect. 4.3. - hdu1_header.bzero: BZERO: This keyword shall be used, along with the BSCALE keyword, to linearly scale the array pixel values (i.e., the actual values stored in the FITS file) to transform them into the physical values that they represent using Eq. 3. The value field shall contain a floating-point number representing the physical value corresponding to an array value of zero. The default value for this keyword is 0.0. This record's comment: "ADDITIVE CONST FOR CALIB." - hdu1_header.patchfil: PATCHFIL: A keyword the FITS Standard doesn't define. This record's comment: "FILE WITH PATCH INFORMATION" - hdu1_header.fadjprog: FADJPROG: A keyword the FITS Standard doesn't define. This record's comment: "FOG ADJUSTMENT PROGRAM" - hdu1_header.fadjver: FADJVER: A keyword the FITS Standard doesn't define. This record's comment: "FOG ADJUSTMENT PROGRAM VERSION" - hdu1_header.fadjdtim: FADJDTIM: A keyword the FITS Standard doesn't define. - hdu1_header.fogll: FOGLL: A keyword the FITS Standard doesn't define. This record's comment: "LOWER LEFT CORNER FOG" - hdu1_header.fogllerr: FOGLLERR: A keyword the FITS Standard doesn't define. This record's comment: "LOWER LEFT CORNER FOG ERROR" - hdu1_header.foglr: FOGLR: A keyword the FITS Standard doesn't define. This record's comment: "LOWER RIGHT CORNER FOG" - hdu1_header.foglrerr: FOGLRERR: A keyword the FITS Standard doesn't define. This record's comment: "LOWER RIGHT CORNER FOG ERROR" - hdu1_header.fogul: FOGUL: A keyword the FITS Standard doesn't define. This record's comment: "UPPER LEFT CORNER FOG" - hdu1_header.fogulerr: FOGULERR: A keyword the FITS Standard doesn't define. This record's comment: "UPPER LEFT CORNER FOG ERROR" - hdu1_header.fogur: FOGUR: A keyword the FITS Standard doesn't define. This record's comment: "UPPER RIGHT CORNER FOG" - hdu1_header.fogurerr: FOGURERR: A keyword the FITS Standard doesn't define. This record's comment: "UPPER RIGHT CORNER FOG ERROR" - hdu1_header.exptime: EXPTIME: A keyword the FITS Standard doesn't define. This record's comment: "EXPOSURE TIME, SECONDS" - hdu1_header.fexpnote: FEXPNOTE: A keyword the FITS Standard doesn't define. This record's comment: "EXPOSURE TIME ANNOTATION" - hdu1_header.exptmsrc: EXPTMSRC: A keyword the FITS Standard doesn't define. This record's comment: "SOURCE OF EXPTIME VALUE" - hdu1_header.crpix1: CRPIX1: Location of the reference point in the image for Axis j corresponding to r j in Eq. (9). Note that the reference point may lie outside the image and that the first pixel in the image has pixel coordinates (1.0, 1.0, . . .). This record's comment: "REF. PIXEL, X, CENTER ORIGIN" - hdu1_header.crpix2: CRPIX2: Location of the reference point in the image for Axis j corresponding to r j in Eq. (9). Note that the reference point may lie outside the image and that the first pixel in the image has pixel coordinates (1.0, 1.0, . . .). This record's comment: "REF. PIXEL, Y, CENTER ORIGIN" - hdu1_header.crval1: CRVAL1: World-coordinate value at the reference point of Axis i. This record's comment: "R. A., DEGREES, OF REF. PIXEL" - hdu1_header.crval2: CRVAL2: World-coordinate value at the reference point of Axis i. This record's comment: "DEC., DEGREES, OF REF. PIXEL" - hdu1_header.ctype1: CTYPE1: Type for the Intermediate-coordinate Axis i. Any coordinate type that is not covered by this Standard or an officially recognized FITS convention shall be taken to be linear. This record's comment: "COORDINATE TYPE" - hdu1_header.ctype2: CTYPE2: Type for the Intermediate-coordinate Axis i. Any coordinate type that is not covered by this Standard or an officially recognized FITS convention shall be taken to be linear. This record's comment: "COORDINATE TYPE" - hdu1_header.undistrt: UNDISTRT: A keyword the FITS Standard doesn't define. This record's comment: "HAS THE IMAGE BEEN UNDISTORTED?" - hdu1_header.cd1_1: CD1_1: Linear transformation matrix (with scale) between Pixel Axes j and Intermediate-coordinate Axes i. This nomenclature is used in place of PCi_j and CDELTi, combining the rotation and the scale. This record's comment: "SDAS-COMPATIBLE: DL/DX" - hdu1_header.cd2_1: CD2_1: Linear transformation matrix (with scale) between Pixel Axes j and Intermediate-coordinate Axes i. This nomenclature is used in place of PCi_j and CDELTi, combining the rotation and the scale. This record's comment: "DM/DX" - hdu1_header.cd1_2: CD1_2: Linear transformation matrix (with scale) between Pixel Axes j and Intermediate-coordinate Axes i. This nomenclature is used in place of PCi_j and CDELTi, combining the rotation and the scale. This record's comment: "DL/DY" - hdu1_header.cd2_2: CD2_2: Linear transformation matrix (with scale) between Pixel Axes j and Intermediate-coordinate Axes i. This nomenclature is used in place of PCi_j and CDELTi, combining the rotation and the scale. This record's comment: "DM/DY" - hdu1_header.bdrstrem: BDRSTREM: A keyword the FITS Standard doesn't define. This record's comment: "DATA REDUCTION STREAM IDENT" - hdu1_header.predeces: PREDECES: A keyword the FITS Standard doesn't define. This record's comment: "ENTRY OF PREVIOUS STEP" - hdu1_header.logentry: LOGENTRY: A keyword the FITS Standard doesn't define. This record's comment: "ENTRY IN BDR LOG" - hdu1_header.hdcurvid: HDCURVID: A keyword the FITS Standard doesn't define. This record's comment: "CHARACTERISTIC CURVE IDENT" - hdu1_header.ffid: FFID: A keyword the FITS Standard doesn't define. This record's comment: "FLAT FIELD IDENTIFIER" - hdu1_header.ffscale: FFSCALE: A keyword the FITS Standard doesn't define. This record's comment: "FLAT FIELD SCALE FACTOR" - hdu1_header.camscale: CAMSCALE: A keyword the FITS Standard doesn't define. This record's comment: "BASIC CAMERA CALIB. CONSTANT" - hdu1_header.filtfac: FILTFAC: A keyword the FITS Standard doesn't define. This record's comment: "AREA UNDER FILTER CURVE" - hdu1_header.calibver: CALIBVER: A keyword the FITS Standard doesn't define. - hdu1_header.shrink: SHRINK: A keyword the FITS Standard doesn't define. This record's comment: "BOX-AVERAGE FACTOR ON INPUT" - hdu1_header.bdrdatim: BDRDATIM: A keyword the FITS Standard doesn't define. - hdu1_header.bdriprg: BDRIPRG: A keyword the FITS Standard doesn't define. This record's comment: "CHAR. CURVE/FLAT-FIELD PROGRAM" - hdu1_header.bdriver: BDRIVER: A keyword the FITS Standard doesn't define. This record's comment: "CHAR. CURVE/FLAT-FIELD PROG VERS" - hdu1_header.timefac: TIMEFAC: A keyword the FITS Standard doesn't define. This record's comment: "T^0.1" - hdu1_header.picscal0: PICSCAL0: A keyword the FITS Standard doesn't define. This record's comment: "CAMSCALE*FILTFAC/EXPTIME" - hdu1_header.picscale: PICSCALE: A keyword the FITS Standard doesn't define. This record's comment: "CAMSCALE*FILTFAC*TIMEFAC/EXPTIME" - hdu1_header.radecsys: RADECSYS: A keyword the FITS Standard doesn't define. This record's comment: "WORLD COORDINATE FRAME" - hdu1_header.a_nmatch: A_NMATCH: A keyword the FITS Standard doesn't define. This record's comment: "NUM OF ASTROM STDS MATCHED" - hdu1_header.ax_resid: AX_RESID: A keyword the FITS Standard doesn't define. This record's comment: "RMS ASTROM RESIDUALS (PIXELS):" - hdu1_header.ay_resid: AY_RESID: A keyword the FITS Standard doesn't define. This record's comment: "<0 MEANS DEFAULT SOLUTION" - hdu1_header.history: HISTORY: This keyword should be used to describe the history of steps and procedures associated with the processing of the associated data. Any FITS-legal characters may appear in Bytes 9 through 80. - hdu1_header.history_2: HISTORY: This keyword should be used to describe the history of steps and procedures associated with the processing of the associated data. Any FITS-legal characters may appear in Bytes 9 through 80. - hdu1_header.history_3: HISTORY: This keyword should be used to describe the history of steps and procedures associated with the processing of the associated data. Any FITS-legal characters may appear in Bytes 9 through 80. - hdu1_header.history_4: HISTORY: This keyword should be used to describe the history of steps and procedures associated with the processing of the associated data. Any FITS-legal characters may appear in Bytes 9 through 80. - hdu1_header.varcurve: VARCURVE: A keyword the FITS Standard doesn't define. This record's comment: "VARIANCE FUNCTION IDENT" - hdu1_header.pht1prog: PHT1PROG: A keyword the FITS Standard doesn't define. This record's comment: "POINT SOURCE PHOTOMETRY PROGRAM" - hdu1_header.pht1ver: PHT1VER: A keyword the FITS Standard doesn't define. This record's comment: "UITPH1 VERSION" - hdu1_header.pht1dtim: PHT1DTIM: A keyword the FITS Standard doesn't define. - hdu1_header.fwhm: FWHM: A keyword the FITS Standard doesn't define. This record's comment: "FWHM OF DETECTION FILTER" - hdu1_header.imin: IMIN: A keyword the FITS Standard doesn't define. This record's comment: "MINIMUM SIGNAL FOR DPFIND" - hdu1_header.imax: IMAX: A keyword the FITS Standard doesn't define. This record's comment: "MAXIMUM SIGNAL FOR DPFIND" - hdu1_header.apr: APR: A keyword the FITS Standard doesn't define. This record's comment: "NUMBER OF PHOTOMETRY APERTURES" - hdu1_header.apr1: APR1: A keyword the FITS Standard doesn't define. This record's comment: "RADIUS OF 1ST APERTURE" - hdu1_header.apr2: APR2: A keyword the FITS Standard doesn't define. This record's comment: "RADIUS OF 2ND APERTURE" - hdu1_header.apr3: APR3: A keyword the FITS Standard doesn't define. This record's comment: "RADIUS OF 3RD APERTURE" - hdu1_header.skyin: SKYIN: A keyword the FITS Standard doesn't define. This record's comment: "INNER RADIUS OF SKY ANNULUS" - hdu1_header.skyout: SKYOUT: A keyword the FITS Standard doesn't define. This record's comment: "OUTER RADIUS OF SKY ANNULUS" - hdu1_header.badlo: BADLO: A keyword the FITS Standard doesn't define. This record's comment: "LOWEST GOOD PIXEL VALUE" - hdu1_header.badhi: BADHI: A keyword the FITS Standard doesn't define. This record's comment: "HIGHEST GOOD PIXEL VALUE" - hdu1_header.rcrit: RCRIT: A keyword the FITS Standard doesn't define. This record's comment: "RADIUS OF IMAGE CIRCLE USED" - hdu1_header.skwfac: SKWFAC: A keyword the FITS Standard doesn't define. This record's comment: "PARAMETER FOR TRIMMING SKY" - hdu1_header.limskw: LIMSKW: A keyword the FITS Standard doesn't define. This record's comment: "VALUE <= WHICH SKWFAC APPLIES" - hdu1_header.mealim: MEALIM: A keyword the FITS Standard doesn't define. This record's comment: "VALUE <= WHICH MEAN SKY USED" - hdu1_header.sv_nax1: SV_NAX1: A keyword the FITS Standard doesn't define. This record's comment: "X DIMENSION OF ORIGINAL IMAGE" - hdu1_header.sv_nax2: SV_NAX2: A keyword the FITS Standard doesn't define. This record's comment: "Y DIMENSION OF ORIGINAL IMAGE" - hdu1_header.astrprog: ASTRPROG: A keyword the FITS Standard doesn't define. This record's comment: "ASTROMETRY PROGRAM NAME" - hdu1_header.astrver: ASTRVER: A keyword the FITS Standard doesn't define. This record's comment: "ASTROMETRY PROGRAM VERSION" - hdu1_header.astrdtim: ASTRDTIM: A keyword the FITS Standard doesn't define. - hdu1_header.history_5: HISTORY: This keyword should be used to describe the history of steps and procedures associated with the processing of the associated data. Any FITS-legal characters may appear in Bytes 9 through 80. - hdu1_header.nhedatim: NHEDATIM: A keyword the FITS Standard doesn't define. - hdu1_header.nhedprg: NHEDPRG: A keyword the FITS Standard doesn't define. This record's comment: "HEADER ATTACHMENT PROGRAM" - hdu1_header.nhedver: NHEDVER: A keyword the FITS Standard doesn't define. This record's comment: "HEADER ATTACH. PROG. VERSION" - hdu1_header.geomprog: GEOMPROG: A keyword the FITS Standard doesn't define. This record's comment: "ROTATION/RESAMPLING PROGRAM" - hdu1_header.geomver: GEOMVER: A keyword the FITS Standard doesn't define. This record's comment: "GEOM PROGRAM VERSION" - hdu1_header.geomdtim: GEOMDTIM: A keyword the FITS Standard doesn't define. - hdu1_header.sv001001: SV001001: A keyword the FITS Standard doesn't define. This record's comment: "ORIGINAL CD00M00N: DL/DX" - hdu1_header.sv001002: SV001002: A keyword the FITS Standard doesn't define. This record's comment: "DL/DY" - hdu1_header.sv002001: SV002001: A keyword the FITS Standard doesn't define. This record's comment: "DM/DX" - hdu1_header.sv002002: SV002002: A keyword the FITS Standard doesn't define. This record's comment: "DM/DY" - hdu1_header.svpix1: SVPIX1: A keyword the FITS Standard doesn't define. This record's comment: "ORIGINAL REFERENCE PIXEL X" - hdu1_header.svpix2: SVPIX2: A keyword the FITS Standard doesn't define. This record's comment: "ORIGINAL REFERENCE PIXEL Y" - hdu1_header.svval1: SVVAL1: A keyword the FITS Standard doesn't define. This record's comment: "ORIGINAL R.A. OF REF. PIXEL" - hdu1_header.svval2: SVVAL2: A keyword the FITS Standard doesn't define. This record's comment: "ORIGINAL DEC. OF REF. PIXEL" - hdu1_header.svctype1: SVCTYPE1: A keyword the FITS Standard doesn't define. This record's comment: "COORDINATE TYPE" - hdu1_header.svctype2: SVCTYPE2: A keyword the FITS Standard doesn't define. This record's comment: "COORDINATE TYPE" - hdu1_header.bxavdtim: BXAVDTIM: A keyword the FITS Standard doesn't define. - hdu1_header.bxavprog: BXAVPROG: A keyword the FITS Standard doesn't define. This record's comment: "ROTATION/RESAMPLING PROGRAM" - hdu1_header.bxavver: BXAVVER: A keyword the FITS Standard doesn't define. This record's comment: "RESAMPLING PROGRAM VERSION" - hdu1_header.bxavfac: BXAVFAC: A keyword the FITS Standard doesn't define. This record's comment: "BOX-AVERAGE FACTOR FOR SMALL VER" - hdu1_header.end: END: This keyword has no associated value. Bytes 9 through 80 shall be filled with ASCII spaces (decimal 32 or hexadecimal 20). The END keyword marks the logical end of the header and must occur in the last 2880-byte FITS block of the header. - hdu1_image: Image row: One row of the 512 x 512 array of HDU 1, the primary HDU, a 512 x 512 array: 512 pixels along axis 1. - hdu1_image.pixel: Pixel value (ERGS/CM**2/S/ANGSTRM): The values of the 512 x 512 array of HDU 1, the primary HDU, a 512 x 512 array, 16-bit two's complement integers (BITPIX = 16), one row of 512 values per "hdu1_image" record. Axis 1: RA---TAN. Axis 2: DEC--TAN. Physical value = BZERO + BSCALE x stored value. Physical value = raw * 0.00000000000000020587209 + 0.00000.
label Semantics of FITS file UITfuv2582gc.fits

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