FORTRAN Generation
(/./ftp/cats/VII/1B)

Conversion of standardized ReadMe file for file /./ftp/cats/VII/1B 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. VII/1B           Revised New General Catalogue    (Sulentic+, 1973)
*================================================================================
*Revised New General Catalogue of Nonstellar Astronomical Objects
*    Sulentic J.W., Tifft W.G.
*   <Univ. of Arizona Press (1973)>
*   =1973rncn.book.....S
C=============================================================================

C  Internal variables

      integer*4 i__

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

C  Declarations for 'catalog.dat'	! The Revised NGC Catalog

      integer*4 nr__
      parameter (nr__=8163)	! Number of records
      character*192 ar__   	! Full-size record

C  1975 position composed of: RAh RAm DE- DEd DEm
      real*8        RAdeg      (nr__) ! (deg) Right Ascension 1975
      real*8        DEdeg      (nr__) ! (deg)     Declination 1975
C  ---------------------------------- ! (position vector(s) in degrees)

      integer*4     NGC        (nr__) ! [1/7840]+= The original NGC number
      character*1   m_NGC      (nr__) ! Component of NGC (6)
      integer*4     Type       (nr__) ! Type of object (1)
      integer*4     RAh        (nr__) ! (h) Right Ascension (1975)
      real*4        RAm        (nr__) ! (min) Right Ascension (1975)
      character*1   DE_        (nr__) ! Declination (1975) sign
      integer*4     DEd        (nr__) ! (deg) Declination (1975)
      integer*4     DEm        (nr__) ! (arcmin) Declination (1975)
      real*4        GLON       (nr__) ! (deg) ? Galactic longitude
      real*4        GLAT       (nr__) ! (deg) ? Galactic latitude
      integer*4     Xpos       (nr__) ! (mm) ? Position eastwards on POSS blue print
      integer*4     Ypos       (nr__) ! (mm) ? Position northwards on POSS blue print
      real*4        Mag        (nr__) ! (mag) ? Magnitude rounded to the nearest
*                                    half magnitude
      integer*4     r_Mag      (nr__) ! ? Source of Magnitude (2)
      character*40  OldDesc    (nr__) ! Visual appearance of object transcribed from
*                                   Dreyer J.L.E. (1888) (3)
      character*56  NewDesc    (nr__) ! Palomar Sky Survey Description of each
*                                   object (4)
      character*40  Notes      (nr__) ! Cross References for RNGC objects (5)
*Note (1): the object type is coded as follows :
*    1 Open Cluster                    6 Cluster associated with nebulosity
*    2 Globular Cluster                7 Non existent
*    3 Diffuse Nebula                  8 Object in Large Magellanic Cloud
*    4 Planetary Nebula                9 Object in Small Magellanic Cloud
*    5 Galaxy                          0 Unverified southern object
*  Combination of two type numbers may appear for an object
*  (such as 28 for a Globular cluster in LMC, etc)
*Note (2): The magnitude sources are coded as follows:
*    1 de Vaucouleurs (RC1, 1964)      5  Collinder (1931)
*    2 Zwicky (1961-1968)   <VII/49>   6  Arp (1965)          <VII/13>
*    3 Vorontsov-Velyaminov <VII/62>   7  Vorontsov-Velyaminov (1931)
*    4 Lindsay  =1958MNRAS.118..172L   8  Bok (1962), Van den Bergh (1968)
*  The complete references are given in the file "adc.doc".
*Note (3): data blocks, separated by commas, each describing an aspect
*  of the visual appearance of the object from Dreyer's (1888) catalogue.
*    The appearance aspects are written in the following order:
*    (a) For nebulae the sequence of blocks is:
*        brightness, size, shape, radial brightness variation,
*        comments referring to the field.
*    (b) For clusters the sequence is:
*        identification (cluster), size, richness, compression,
*        brightness of the stars therein.
*    The various codes and abbreviations are detailed in Table 5 of
*    the file "adc.doc".
*Note (4): The data blocks in the new description do not follow the
*    regular sequence used in the old description.
*    The description are decoded by taking each individual block of
*    comma-separated data and finding the largest combination of
*    letters present in the RNGC code table (Table 6 in file "adc.doc").
*Note (5): See Table 7 in file "adc.doc" for acronyms used in
*    cross-references.
*Note (6): Some anonymous objects near NGC objects or components
*    in multiple systems are assigned the same NGC number followed
*    by a letter in alphabetic sequence

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

C  Loading file 'catalog.dat'	! The Revised NGC Catalog

C  Format for file interpretation

    1 format(
     +  1X,I4,A1,1X,I2,1X,I2,1X,F4.1,1X,A1,I2,1X,I2,1X,F6.2,1X,F6.2,
     +  1X,I3,1X,I3,1X,F4.1,1X,I1,1X,A40,1X,A56,1X,A40)

C  Effective file loading

      open(unit=1,status='old',file=
     +'catalog.dat')
      write(6,*) '....Loading file: catalog.dat'
      do i__=1,8163
        read(1,'(A192)')ar__
        read(ar__,1)
     +  NGC(i__),m_NGC(i__),Type(i__),RAh(i__),RAm(i__),DE_(i__),
     +  DEd(i__),DEm(i__),GLON(i__),GLAT(i__),Xpos(i__),Ypos(i__),
     +  Mag(i__),r_Mag(i__),OldDesc(i__),NewDesc(i__),Notes(i__)
        if(ar__(26:31) .EQ. '') GLON(i__) = rNULL__
        if(ar__(33:38) .EQ. '') GLAT(i__) = rNULL__
        if(ar__(40:42) .EQ. '') Xpos(i__) = iNULL__
        if(ar__(44:46) .EQ. '') Ypos(i__) = iNULL__
        if(ar__(48:51) .EQ. '') Mag(i__) = rNULL__
        if(ar__(53:53) .EQ. '') r_Mag(i__) = iNULL__
        RAdeg(i__) = rNULL__
        DEdeg(i__) = rNULL__
c  Derive coordinates RAdeg and DEdeg from input data
c  (RAdeg and DEdeg are set to rNULL__ when unknown)
        if(RAh(i__) .GT. -180) RAdeg(i__)=RAh(i__)*15.
        if(RAm(i__) .GT. -180) RAdeg(i__)=RAdeg(i__)+RAm(i__)/4.
        if(DEd(i__) .GE. 0) DEdeg(i__)=DEd(i__)
        if(DEm(i__) .GE. 0) DEdeg(i__)=DEdeg(i__)+DEm(i__)/60.
        if(DE_(i__).EQ.'-'.AND.DEdeg(i__).GE.0) DEdeg(i__)=-DEdeg(i__)
c    ..............Just test output...........
        write(6,1)
     +  NGC(i__),m_NGC(i__),Type(i__),RAh(i__),RAm(i__),DE_(i__),
     +  DEd(i__),DEm(i__),GLON(i__),GLAT(i__),Xpos(i__),Ypos(i__),
     +  Mag(i__),r_Mag(i__),OldDesc(i__),NewDesc(i__),Notes(i__)
        write(6,'(6H Pos: 2F8.4)') RAdeg(i__),DEdeg(i__)
c    .......End.of.Just test output...........
      end do
      close(1)

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