Conversion of standardized ReadMe file for
file /./ftp/cats/J/MNRAS/402/2403 into FORTRAN code for reading data files line by line.
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 2026-Apr-23
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/MNRAS/402/2403 Australia Telescope 20GHz Survey Catalog, AT20G (Murphy+, 2010)
*================================================================================
*The Australia Telescope 20GHz Survey (AT20G), Version XX October 2009.
* Murphy T., Sadler E.M., Ekers R.D., Massardi M., Hancock P.J., Mahony E.,
* Ricci R., Burke-Spolaor S., Calabretta M., Chhetri R., De Zotti G.,
* Edwards P.G., Ekers J.A., Jackson C.A., Kesteven M.J., Lindley E.,
* Newton-McGee K., Phillips C., Roberts P., Sault R.J., Staveley-Smith L.,
* Subrahmanyan R., Walker M.A., Wilson W.E.
* <Mon. Not. R. Astron. Soc. 402, 2403 (2010)>
* =2010MNRAS.402.2403M
C=============================================================================
C Internal variables
integer*4 i__
c - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
C Declarations for 'at20gcat.dat' ! The AT20G catalogue, version 1.0 (2009-10-15)
integer*4 nr__
parameter (nr__=5890) ! Number of records
character*142 ar__ ! Full-size record
C J2000 position composed of: RAh RAm RAs DE- DEd DEm DEs
real*8 RAdeg ! (deg) Right Ascension J2000
real*8 DEdeg ! (deg) Declination J2000
C ---------------------------------- ! (position vector(s) in degrees)
character*14 AT20G ! IAU designation (JHHMMSS+DDMMSS)
integer*4 RAh ! (h) Right Ascension J2000 (hours) (1)
integer*4 RAm ! (min) Right Ascension J2000 (minutes) (1)
real*4 RAs ! (s) Right Ascension J2000 (seconds) (1)
character*1 DE_ ! Declination J2000 (sign) (2)
integer*4 DEd ! (deg) Declination J2000 (degrees) (2)
integer*4 DEm ! (arcmin) Declination J2000 (minutes) (2)
real*4 DEs ! (arcsec) Declination J2000 (seconds) (2)
integer*4 S20 ! (mJy) ?=- Peak brightness at 20GHz (in mJy/beam) (3)
integer*4 e_S20 ! (mJy) ?=- Uncertainty on S20
integer*4 S8 ! (mJy) ?=- Peak brightness at 8GHz (in mJy/beam) (3)
integer*4 e_S8 ! (mJy) ?=- Uncertainty on S8
integer*4 S5 ! (mJy) ?=- Peak brightness at 5GHz (in mJy/beam) (3)
integer*4 e_S5 ! (mJy) ?=- Uncertainty on S5
character*3 Ep ! [1-8.] Epochs of observation at 20, 8, 5GHz (4)
character*1 Q ! [gp] Quality flag (g=good or p=poor)
character*3 Flags ! Other flags (5)
character*1 l_P20 ! Limit flag on P20
integer*4 P20 ! (mJy) ?=- Polarized flux density (or limit) at 20GHz
integer*4 e_P20 ! (mJy) ?=- Uncertainty on P20
character*1 l_m20 ! Limit flag on m20
real*4 m20 ! (%) ?=- Fractional polarisation at 20GHz
integer*4 PA20 ! (deg) [-90/90]?=- Position angle at 20GHz
character*1 l_P8 ! Limit flag on P8
integer*4 P8 ! (mJy) ?=- Polarized flux density (or limit) at 8GHz
integer*4 e_P8 ! (mJy) ?=- Uncertainty on P8
character*1 l_m8 ! Limit flag on m8
real*4 m8 ! (%) ?=- Fractional polarisation at 8GHz
integer*4 PA8 ! (deg) [-90/90]?=- Position angle at 8GHz
character*1 l_P5 ! Limit flag on P5
integer*4 P5 ! (mJy) ?=- Polarized flux density (or limit) at 5GHz
integer*4 e_P5 ! (mJy) ?=- Uncertainty on P5
character*1 l_m5 ! Limit flag on m5
real*4 m5 ! (%) ?=- Fractional polarisation at 5GHz
integer*4 PA5 ! (deg) [-90/90]?=- Position angle at 5GHz
*Note (1): The mean uncertainty in RA is 0.9 arcsec. See Sec 4.1 of the paper.
*Note (2): The mean uncertainty in Dec is 1.0 arcsec. See Sec 4.1 of the paper.
*Note (3): See Sec 3.3.2 for calculation of fluxes for extended sources.
*Note (4): The 3 digits give the epoch code for the 3 frequencies (more
* details in Table 3 of the paper):
* ---------------------------------------------------------------------------
* # Dec. Freq1 Freq2 Array Beam1 Beam2 Dates Rem.
* (deg) (MHz) Conf. (arcsec)
* ---------------------------------------------------------------------------
* 1 -50/-30 18752 21056 H214 10.8x10.8 2004 Oct 21-27 C
* 1 -50/-30 4800 8640 1.5C 8.3x12.8 4.6x7.13 2004 Nov 04-08 O
* 2 -90/-50 18752 21056 H168 13.9x13.9 2005 Oct 27-31 C
* 2 -90/-50 4800 8640 1.5C 8.3x 8.8 4.6x4.9 2005 Nov 12-15 O
* 3 -90/-30 18752 21056 H214 10.8x10.8 2006 Apr 29-03May R
* 3 -90/-30 4800 8640 1.5D 8.3x 9.5 4.6x5.3 2006 Jun 19-23 R,O
* 4 -30/-15 18752 21056 H214 2.0x 5.1 2006 Oct 14-17 C
* 4 -30/-15 4800 8640 1.5B 8.3x21.1 4.6x11.7 2006 Nov 9-12 O
* 5 -90/-15 18752 21056 H214 10.8x10.8 2007 May 11-16 R
* 5 -90/-15 4800 8640 1.5C 8.3x21.1 4.6x11.7 2007 May 4-10 R,O
* 6 -90/ 0 18752 21056 H214 10.8x10.8 2007 Oct 26-30 C,R
* 7 -15/ 0 18752 21056 H75 33.9x33.9 2008 Aug 22-26 R
* ---------------------------------------------------------------------------
* C = follow-up observations at 20GHz,
* O = observations at 5 and 8GHz
* R = Repeat previous bad quality observations
* ---------------------------------------------------------------------------
*Note (5): Possible values for flags as follows:
* e = extended source
* h = Galactic HII region,
* p = Galactic planetary nebula
* m = Magellanic clouds source,
* l = no match in low frequency surveys
* b = large and extended
* See the paper for more details of these classifications.
C=============================================================================
C Loading file 'at20gcat.dat' ! The AT20G catalogue, version 1.0 (2009-10-15)
C Format for file interpretation
1 format(
+ 5X,A14,1X,I2,1X,I2,1X,F5.2,1X,A1,I2,1X,I2,1X,F4.1,1X,I5,1X,I3,
+ 2X,I4,1X,I3,1X,I5,1X,I3,1X,A3,1X,A1,1X,A3,1X,A1,I4,1X,I2,1X,
+ A1,F4.1,1X,I3,2X,A1,I3,1X,I2,1X,A1,F5.1,1X,I3,1X,A1,I4,2X,I1,
+ 1X,A1,F5.1,1X,I3)
C Effective file loading
open(unit=1,status='old',file=
+'at20gcat.dat')
write(6,*) '....Loading file: at20gcat.dat'
do i__=1,5890
read(1,'(A142)')ar__
read(ar__,1)
+ AT20G,RAh,RAm,RAs,DE_,DEd,DEm,DEs,S20,e_S20,S8,e_S8,S5,e_S5,
+ Ep,Q,Flags,l_P20,P20,e_P20,l_m20,m20,PA20,l_P8,P8,e_P8,l_m8,
+ m8,PA8,l_P5,P5,e_P5,l_m5,m5,PA5
if (S20 .EQ. 45) S20 = iNULL__
if (e_S20 .EQ. 45) e_S20 = iNULL__
if (S8 .EQ. 45) S8 = iNULL__
if (e_S8 .EQ. 45) e_S8 = iNULL__
if (S5 .EQ. 45) S5 = iNULL__
if (e_S5 .EQ. 45) e_S5 = iNULL__
if (P20 .EQ. 45) P20 = iNULL__
if (e_P20 .EQ. 45) e_P20 = iNULL__
if (idig(ar__(95:98)).EQ.0) m20 = rNULL__
if (PA20 .EQ. 45) PA20 = iNULL__
if (P8 .EQ. 45) P8 = iNULL__
if (e_P8 .EQ. 45) e_P8 = iNULL__
if (idig(ar__(114:118)).EQ.0) m8 = rNULL__
if (PA8 .EQ. 45) PA8 = iNULL__
if (P5 .EQ. 45) P5 = iNULL__
if (e_P5 .EQ. 45) e_P5 = iNULL__
if (idig(ar__(134:138)).EQ.0) m5 = rNULL__
if (PA5 .EQ. 45) PA5 = iNULL__
RAdeg = rNULL__
DEdeg = rNULL__
c Derive coordinates RAdeg and DEdeg from input data
c (RAdeg and DEdeg are set to rNULL__ when unknown)
if(RAh .GT. -180) RAdeg=RAh*15.
if(RAm .GT. -180) RAdeg=RAdeg+RAm/4.
if(RAs .GT. -180) RAdeg=RAdeg+RAs/240.
if(DEd .GE. 0) DEdeg=DEd
if(DEm .GE. 0) DEdeg=DEdeg+DEm/60.
if(DEs .GE. 0) DEdeg=DEdeg+DEs/3600.
if(DE_.EQ.'-'.AND.DEdeg.GE.0) DEdeg=-DEdeg
c ..............Just test output...........
write(6,1)
+ AT20G,RAh,RAm,RAs,DE_,DEd,DEm,DEs,S20,e_S20,S8,e_S8,S5,e_S5,
+ Ep,Q,Flags,l_P20,P20,e_P20,l_m20,m20,PA20,l_P8,P8,e_P8,l_m8,
+ m8,PA8,l_P5,P5,e_P5,l_m5,m5,PA5
write(6,'(6H Pos: 2F8.4)') RAdeg,DEdeg
c .......End.of.Just test output...........
end do
close(1)
C=============================================================================
stop
end
C Locate position of first digit in string; or return 0
integer function idig(c)
character*(*) c
character*1 c1
integer lc,i
lc=len(c)
idig=0
do i=1,lc
if(c(i:i).ne.' ') go to 1
end do
1 if(i.gt.lc) return
c1=c(i:i)
if(c1.eq.'.'.or.c1.eq.'-'.or.c1.eq.'+') i=i+1
if(i.gt.lc) return
c1=c(i:i)
if(c1.ge.'0'.and.c1.le.'9') idig=i
return
end