FORTRAN Generation
(/./ftp/cats/J/ApJ/849/161)

Conversion of standardized ReadMe file for file /./ftp/cats/J/ApJ/849/161 into FORTRAN code for loading all data files into arrays.

Note that special values are assigned to unknown or unspecified numbers (also called NULL numbers); when necessary, the coordinate components making up the right ascension and declination are converted into floating-point numbers representing these angles in degrees.



      program load_ReadMe
C=============================================================================
C  F77-compliant program generated by readme2f_1.81 (2015-09-23), on 2024-Apr-20
C=============================================================================
*  This code was generated from the ReadMe file documenting a catalogue
*  according to the "Standard for Documentation of Astronomical Catalogues"
*  currently in use by the Astronomical Data Centers (CDS, ADC, A&A)
*  (see full documentation at URL http://vizier.u-strasbg.fr/doc/catstd.htx)
*  Please report problems or questions to   
C=============================================================================

      implicit none
*  Unspecified or NULL values, generally corresponding to blank columns,
*  are assigned one of the following special values:
*     rNULL__    for unknown or NULL floating-point values
*     iNULL__    for unknown or NULL   integer      values
      real*4     rNULL__
      integer*4  iNULL__
      parameter  (rNULL__=--2147483648.)  	! NULL real number
      parameter  (iNULL__=(-2147483647-1))	! NULL int  number
      integer    idig			! testing NULL number

C=============================================================================
Cat. J/ApJ/849/161    BVRI light curves of the BL Lac object Mrk 501    (Feng+, 2017)
*================================================================================
*Search for intra-day optical variability in Mrk 501.
*    Feng H.-C., Liu H.T., Fan X.L., Zhao Y., Bai J.M., Wang F., Xiong D.R.,
*    Li S.K.
*   <Astrophys. J., 849, 161 (2017)>
*   =2017ApJ...849..161F
C=============================================================================

C  Internal variables

      integer*4 i__

c - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

C  Declarations for 'table2.dat'	! The observational data for Mrk 501

      integer*4 nr__
      parameter (nr__=689)	! Number of records
      character*95 ar__   	! Full-size record

      real*8        MJD_B      (nr__) ! (d) [3465.8/6051]? B band Modified Julian Date
*                                 of observation; MJD-50000
      real*4        Bmag       (nr__) ! (mag) [13.8/14.9]? Apparent B band magnitude
      real*4        FWHM_B     (nr__) ! (arcsec) [1.2/4.5]? Full-Width at Half Maximum of B band
*                                 aperture
      real*8        MJD_I      (nr__) ! (d) [3465.8/6059]? I band Modified Julian Date of
*                                 observation; MJD-50000
      real*4        Imag       (nr__) ! (mag) [12/12.7]? Apparent I band magnitude
      real*4        FWHM_I     (nr__) ! (arcsec) [1/5.2]? Full-Width at Half Maximum of I band
*                                 aperture
      real*8        MJD_R      (nr__) ! (d) [3465.8/6065] R band Modified Julian Date of
*                                 observation; MJD-50000
      real*4        Rmag       (nr__) ! (mag) [12.7/18.9] Apparent R band magnitude
      real*4        FWHM_R     (nr__) ! (arcsec) [1.1/5.4] Full-Width at Half Maximum of R band
*                                 aperture
      real*8        MJD_V      (nr__) ! (d) [3465.8/6061]? V band Modified Julian Date of
*                                 observation; MJD-50000
      real*4        Vmag       (nr__) ! (mag) [13/14]? Apparent V band magnitude
      real*4        FWHM_V     (nr__) ! (arcsec) [1.1/3.6]? Full-Width at Half Maximum of V band
*                                 aperture

C=============================================================================

C  Loading file 'table2.dat'	! The observational data for Mrk 501

C  Format for file interpretation

    1 format(
     +  F11.6,1X,F6.3,1X,F4.2,1X,F11.6,1X,F6.3,1X,F4.2,1X,F11.6,1X,
     +  F6.3,1X,F4.2,1X,F11.6,1X,F6.3,1X,F4.2)

C  Effective file loading

      open(unit=1,status='old',file=
     +'table2.dat')
      write(6,*) '....Loading file: table2.dat'
      do i__=1,689
        read(1,'(A95)')ar__
        read(ar__,1)
     +  MJD_B(i__),Bmag(i__),FWHM_B(i__),MJD_I(i__),Imag(i__),
     +  FWHM_I(i__),MJD_R(i__),Rmag(i__),FWHM_R(i__),MJD_V(i__),
     +  Vmag(i__),FWHM_V(i__)
        if(ar__(1:11) .EQ. '') MJD_B(i__) = rNULL__
        if(ar__(13:18) .EQ. '') Bmag(i__) = rNULL__
        if(ar__(20:23) .EQ. '') FWHM_B(i__) = rNULL__
        if(ar__(25:35) .EQ. '') MJD_I(i__) = rNULL__
        if(ar__(37:42) .EQ. '') Imag(i__) = rNULL__
        if(ar__(44:47) .EQ. '') FWHM_I(i__) = rNULL__
        if(ar__(73:83) .EQ. '') MJD_V(i__) = rNULL__
        if(ar__(85:90) .EQ. '') Vmag(i__) = rNULL__
        if(ar__(92:95) .EQ. '') FWHM_V(i__) = rNULL__
c    ..............Just test output...........
        write(6,1)
     +  MJD_B(i__),Bmag(i__),FWHM_B(i__),MJD_I(i__),Imag(i__),
     +  FWHM_I(i__),MJD_R(i__),Rmag(i__),FWHM_R(i__),MJD_V(i__),
     +  Vmag(i__),FWHM_V(i__)
c    .......End.of.Just test output...........
      end do
      close(1)

C=============================================================================
      stop
      end