SIMPLE  =                    T / file does conform to FITS standard             BITPIX  =                   32 / number of bits per data pixel                  NAXIS   =                    0 / number of data axes                            EXTEND  =                    T / FITS dataset may contain extensions            COMMENT   FITS (Flexible Image Transport System) format defined in Astronomy andCOMMENT   Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.COMMENT   Contact the NASA Science Office of Standards and Technology for the   COMMENT   FITS Definition document #100 and other FITS information.             DATE    = '24/09/97'           / FITS file creation date (dd/mm/yy)             ORIGIN  = 'CDAC    '           /  Cosmology Data Analysis Center                TELESCOP= 'COBE    '           /  COsmic Background Explorer satellite          INSTRUME= 'FIRAS   '           /  COBE instrument [DIRBE, DMR, FIRAS]           OBJECT  = 'ALL-SKY '           /  part of sky given [ALL-SKY, GAL-SLICE]        PRODUCT = 'MOD-ERRS'           /  Model selection errors                        EQUINOX =               2000.0 /  equinox of coords in following tables         COMMENT                                                                         REFERENC= 'For additional information, please refer to the' /                   REFERENC= 'COBE Far Infrared Absolute Spectrophotometer (FIRAS)' /              REFERENC= 'Explanatory Supplement, ed. J.C. Mather et al,' /                    REFERENC= 'COBE Ref. Pub. No. 97-C (Greenbelt, MD: NASA/GSFC),' /               REFERENC= 'available in electronic form from the NSSDC.' /                      COMMENT                                                                         COMMENT     COBE specific keywords                                              DATE-BEG= '24/11/89'           /  date of initial data represented (dd/mm/yy)   DATE-END= '21/09/90'           /  date of final data represented (dd/mm/yy)     PIXRESOL=                    6 /  Quad tree pixel resolution [6, 9]             COMMENT                                                                         COMMENT     FIRAS specific keywords                                             CHANSCAN= 'LOWF    '           /  Field indicating combination of data from     COMMENT                          / various channels and mirror transport        COMMENT                          / mechanism scan modes.  LOWF is a combination COMMENT                          / of the low frequency RLSS, RLFS, RLFL, LLSS, COMMENT                          / LLFS, and LLFL data.  HIGH is a combination oCOMMENT   f                                                                     COMMENT                          / the high frequency RHSS, RHSF, RHLF, LHSS,   COMMENT                          / LHSF, and LHLF data.  HIF2, HIF3, and HIF4   COMMENT                          / divide the HIGH data into three frequency    COMMENT                          / bands, as indicated by the NU_ZERO and       COMMENT                          / NUM_FREQ fields.  HRES is a combination of thCOMMENT   e                                                                     COMMENT                          / high resolution RLLF and LLLF data.  For the COMMENT                          / uncombined channel/scan mode labels, the firsCOMMENT   t                                                                     COMMENT                          / two characters of the label indicate the     COMMENT                          / channel, the first being the instrument side:COMMENT                          / right (R) or left (L); and the second being  COMMENT                          / the frequency:  high (H) or low (L).  The    COMMENT                          / third and fourth characters indicate the scanCOMMENT                          / mode, the third being the scan length:  shortCOMMENT                          / (S) or long (L); and the fourth being the scaCOMMENT   n                                                                     COMMENT                          / speed:  slow (S) or fast (F).  In addition,  COMMENT                          / the scan mode may take the following values  COMMENT                          / for low frequency data only (channel = RL or COMMENT                          / LL):                                         COMMENT                          /      FS: decimated SF data;                  COMMENT                          /      FL: truncated LF data.                  MODLLABL= 'PASS4   '           /  FIRAS calibration model solution label        MISS_SEG= 'ENTIRE_MISSION'     /  FIRAS segment of mission represented          NU_ZERO =            68.020812 /  Optical frequency of initial data point in GHzDELTA_NU=            13.604162 /  Optical frequency interval between data pointsCOMMENT                          / in GHz                                       NUM_FREQ=                   43 /  Number of frequency points with good data     END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             XTENSION= 'BINTABLE'           / Extension type is Binary Table                 BITPIX  =                    8 / Binary data                                    NAXIS   =                    2 / Data are in a table                            NAXIS1  =                  648 / Number of 8 bit bytes in each row              NAXIS2  =                   10 / Number of rows                                 PCOUNT  =                    0 / Number of bytes of data following table        GCOUNT  =                    1 / Group count (always 1 for bintable extensions) TFIELDS =                    6 / Number of fields (columns) in the table        COMMENT                                                                         COMMENT                                                                         COMMENT    FIRAS Comparison Spectrum                                            COMMENT    Project Dataset Record Structure                                     COMMENT                                                                         COMMENT                                                                         COMMENT    Destriper model description                                          TFORM1  = '80A     '           /                                                TTYPE1  = 'DESCRIP1'           /  entire fieldname = DESCRIP1                   TUNIT1  = '        '           /                                                COMMENT    Comparison destriper model description                               TFORM2  = '80A     '           /                                                TTYPE2  = 'DESCRIP2'           /  entire fieldname = DESCRIP2                   TUNIT2  = '        '           /                                                COMMENT    Channel/scan mode                                                    TFORM3  = '4A      '           /                                                TTYPE3  = 'CHANSCAN'           /  entire fieldname = CHANSCAN1                  TUNIT3  = '        '           /                                                COMMENT    Comparison channel/scan mode                                         TFORM4  = '4A      '           /                                                TTYPE4  = 'CHANSCA2'           /  entire fieldname = CHANSCAN2                  TUNIT4  = '        '           /                                                COMMENT    Difference spectrum, in MJy/sr                                       TFORM5  = '60E     '           /                                                TDIM5   = '(60)    '           /                                                TTYPE5  = 'DIFF_SPE'           /  entire fieldname = DIFF_SPEC                  TUNIT5  = 'MJy/sr  '           /                                                COMMENT    Difference spectrum sigma, in MJy/sr                                 TFORM6  = '60E     '           /                                                TDIM6   = '(60)    '           /                                                TTYPE6  = 'DIFF_SP2'           /  entire fieldname = DIFF_SPEC_SIG              TUNIT6  = 'MJy/sr  '           /                                                COMMENT                                                                         END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               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