SIMPLE  =                    T / This is a FITS file                            BITPIX  =                    8 / ASCII characters = 8 bits per pixel            NAXIS   =                    0 / No image data array present                    EXTEND  =                    T / There may be standard extensions                                                                                               OBJECT  = 'P/HALLEY'           / Name of object                                 FILE-NUM=               183536 / Unique file identification no.                 DISCIPLN= 'ASTROMETRY'         / IHW discipline                                 DAT-FORM= 'ASCII   '           / Form of data                                                                                                                   COMMENT   This FITS file contains 158 astrometric observations of comet Halley  COMMENT   taken during the apparition of 1835 - 1836.                                                                                                           END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             XTENSION= 'TABLE   '           / Table extension                                BITPIX  =                    8 / ASCII characters = 8 bits per pixel            NAXIS   =                    2 / 2-d matrix                                     NAXIS1  =                  360 / No. of characters per row                      NAXIS2  =                  158 / No. of rows (observations)                     PCOUNT  =                    0 / No random parameters                           GCOUNT  =                    1 / Only one group                                 TFIELDS =                   17 / No. of fields per row                                                                                                          COMMENT   Fields comprise 332 columns, but lines have been                      COMMENT   extended to 360 columns.                                                                                                                              TTYPE1  = 'UTC_TIME_OF_OBS.'   / UTC time of observation                        TBCOL1  =                    1 / Starting column                                TFORM1  = 'D14.5   '           / Format: yyyymmdd.ddddd                                                                                                         TTYPE2  = 'JULIAN_EPH._DATE'   / Julian ephemeris date                          TBCOL2  =                   16 / Starting column                                TFORM2  = 'D13.5   '           / Format: ddddddd.ddddd                                                                                                          TTYPE3  = 'ET-UTC_CORRECTION'  / ET-UTC correction                              TBCOL3  =                   30 / Starting column                                TFORM3  = 'E4.1    '           / Format: tt.t                                   TUNIT3  = 'SECOND  '           / Unit: Seconds of time                                                                                                          TTYPE4  = 'R.A.    '           / Input right ascension                          TBCOL4  =                   35 / Starting column                                TFORM4  = 'D9.2    '           / Format: hhmmss.ss                                                                                                              TTYPE5  = 'DEC.    '           / Input declination                              TBCOL5  =                   45 / Starting column                                TFORM5  = 'D9.1    '           / Format: sddmmss.s                                                                                                              TTYPE6  = 'R.A._RMS'           / Right ascension data RMS (sigma)               TBCOL6  =                   55 / Starting column                                TFORM6  = 'E4.1    '           / Format: ss.s                                   TUNIT6  = 'ARCSECOND'          / Unit: Seconds of arc                                                                                                           TTYPE7  = 'DEC._RMS'           / Declination data RMS (sigma)                   TBCOL7  =                   60 / Starting column                                TFORM7  = 'E4.1    '           / Format: ss.s                                   TUNIT7  = 'ARCSECOND'          / Unit: Seconds of arc                                                                                                           TTYPE8  = 'OBSERVATORY_CODE'   / IAU observatory code                           TBCOL8  =                   65 / Starting column                                TFORM8  = 'I3      '           / Format: ccc                                                                                                                    TTYPE9  = 'OBSERVATORY'        / Name of observatory                            TBCOL9  =                   70 / Starting column                                TFORM9  = 'A36     '           / Format                                                                                                                         TTYPE10 = 'LONGITUDE'          / East longitude of observatory                  TBCOL10 =                  109 / Starting column                                TFORM10 = 'A9      '           / Format: ddd/mm/ss                                                                                                              TTYPE11 = 'LATITUDE'           / Latitude of observatory                        TBCOL11 =                  121 / Starting column                                TFORM11 = 'A9      '           / Format: sdd/mm/ss                                                                                                              TTYPE12 = 'DELTA_XY'           / Observatory parallax factor (deltaXY)          TBCOL12 =                  132 / Starting column                                TFORM12 = 'I4      '           / Format: snnn                                   TUNIT12 = '1E-7 AU '           / Unit                                                                                                                           TTYPE13 = 'DELTA_Z '           / Observatory parallax factor (deltaZ)           TBCOL13 =                  137 / Starting column                                TFORM13 = 'I4      '           / Format: snnn                                   TUNIT13 = '1E-7 AU '           / Unit                                                                                                                           TTYPE14 = 'ACCEPT_CODE'        / Accept code (Values: A = accept, D = delete)   TBCOL14 =                  143 / Starting column                                TFORM14 = 'A1      '           / Format                                                                                                                         TTYPE15 = 'OBSERVER'           / Name(s) of observer(s)                         TBCOL15 =                  147 / Starting column                                TFORM15 = 'A24     '           / Format                                                                                                                         TTYPE16 = 'NOTE_1  '           / Supplemental information (notes)               TBCOL16 =                  174 / Starting column                                TFORM16 = 'A78     '           / Format                                                                                                                         TTYPE17 = 'NOTE_2  '           / Supplemental information (notes)               TBCOL17 =                  255 / Starting column                                TFORM17 = 'A78     '           / Format                                                                                                                         END