Conversion of standardized ReadMe file for
file /./ftp/cats/J/A_A/710/L33 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 2026-Sep-08
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/A+A/710/L33 Optical polarization variability of 15 blazars (Grigoriou+, 2026)
*================================================================================
*Optical polarization variability and its relation to gamma-ray activity in
*blazars.
* Grigoriou S., Glykopoulou A., Liodakis I.
* <Astron. Astrophys. 710, L33 (2026)>
* =2026A&A...710L..33G (SIMBAD/NED BibCode)
C=============================================================================
C Internal variables
integer*4 i__
c - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
C Declarations for 'sources.dat' ! List of studied sources
integer*4 nr__
parameter (nr__=15) ! Number of records
character*50 ar__ ! Full-size record
C J2000 position composed of: RAh RAm RAs DE- DEd DEm DEs
real*8 RAdeg (nr__) ! (deg) Right Ascension J2000
real*8 DEdeg (nr__) ! (deg) Declination J2000
C ---------------------------------- ! (position vector(s) in degrees)
character*12 Name (nr__) ! Target name
integer*4 RAh (nr__) ! (h) Simbad right ascension (J2000)
integer*4 RAm (nr__) ! (min) Simbad right ascension (J2000)
real*4 RAs (nr__) ! (s) Simbad right ascension (J2000)
character*1 DE_ (nr__) ! Simbad declination sign (J2000)
integer*4 DEd (nr__) ! (deg) Simbad declination (J2000)
integer*4 DEm (nr__) ! (arcmin) Simbad declination (J2000)
real*4 DEs (nr__) ! (arcsec) Simbad declination (J2000)
character*13 SName (nr__) ! Simbad name
c - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
C Declarations for 'phot.dat' ! Combined multi-telescope photometry data
integer*4 nr__1
parameter (nr__1=7006) ! Number of records
character*41 ar__1 ! Full-size record
character*12 Name_1 (nr__1) ! Target name
real*8 JD (nr__1) ! (d) Julian date of the observation
real*4 mag (nr__1) ! (mag) ?=99.99 Magnitude in the observed filter band
real*4 e_mag (nr__1) ! (mag) ?=-9.99 Uncertainty on magnitude (1)
*Note (1): A value of -9.99 indicates a missing or recalculable error
* due to insufficient data.
c - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
C Declarations for 'pol.dat' ! Combined multi-telescope polarimetry data
integer*4 nr__2
parameter (nr__2=8264) ! Number of records
character*55 ar__2 ! Full-size record
character*12 Name_2 (nr__2) ! Target name
real*8 JD_1 (nr__2) ! (d) Julian date of the observation
real*4 PD (nr__2) ! (%) Linear polarization degree
real*4 e_PD (nr__2) ! (%) The 1-sigma uncertainty on PD
real*4 PA (nr__2) ! (deg) []?=-999.0 Polarization angle (1)
real*4 e_PA (nr__2) ! (deg) ?=-9.99 Uncertainty on PA (2)
*Note (1): A value of -999.0 indicates a missing polarization angle.
*Note (2): A value of -9.99 indicates a missing error value for the position
* angle.
C=============================================================================
C Loading file 'sources.dat' ! List of studied sources
C Format for file interpretation
1 format(A12,1X,I2,1X,I2,1X,F5.2,1X,A1,I2,1X,I2,1X,F4.1,1X,A13)
C Effective file loading
open(unit=1,status='old',file=
+'sources.dat')
write(6,*) '....Loading file: sources.dat'
do i__=1,15
read(1,'(A50)')ar__
read(ar__,1)
+ Name(i__),RAh(i__),RAm(i__),RAs(i__),DE_(i__),DEd(i__),
+ DEm(i__),DEs(i__),SName(i__)
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(RAs(i__) .GT. -180) RAdeg(i__)=RAdeg(i__)+RAs(i__)/240.
if(DEd(i__) .GE. 0) DEdeg(i__)=DEd(i__)
if(DEm(i__) .GE. 0) DEdeg(i__)=DEdeg(i__)+DEm(i__)/60.
if(DEs(i__) .GE. 0) DEdeg(i__)=DEdeg(i__)+DEs(i__)/3600.
if(DE_(i__).EQ.'-'.AND.DEdeg(i__).GE.0) DEdeg(i__)=-DEdeg(i__)
c ..............Just test output...........
write(6,1)
+ Name(i__),RAh(i__),RAm(i__),RAs(i__),DE_(i__),DEd(i__),
+ DEm(i__),DEs(i__),SName(i__)
write(6,'(6H Pos: 2F8.4)') RAdeg(i__),DEdeg(i__)
c .......End.of.Just test output...........
end do
close(1)
C=============================================================================
C Loading file 'phot.dat' ! Combined multi-telescope photometry data
C Format for file interpretation
2 format(A12,4X,F13.5,1X,F5.2,1X,F5.2)
C Effective file loading
open(unit=1,status='old',file=
+'phot.dat')
write(6,*) '....Loading file: phot.dat'
do i__=1,7006
read(1,'(A41)')ar__1
read(ar__1,2)Name_1(i__),JD(i__),mag(i__),e_mag(i__)
c ..............Just test output...........
write(6,2)Name_1(i__),JD(i__),mag(i__),e_mag(i__)
c .......End.of.Just test output...........
end do
close(1)
C=============================================================================
C Loading file 'pol.dat' ! Combined multi-telescope polarimetry data
C Format for file interpretation
3 format(A12,4X,F13.5,1X,F5.2,1X,F5.2,1X,F6.1,1X,F6.2)
C Effective file loading
open(unit=1,status='old',file=
+'pol.dat')
write(6,*) '....Loading file: pol.dat'
do i__=1,8264
read(1,'(A55)')ar__2
read(ar__2,3)
+ Name_2(i__),JD_1(i__),PD(i__),e_PD(i__),PA(i__),e_PA(i__)
c ..............Just test output...........
write(6,3)
+ Name_2(i__),JD_1(i__),PD(i__),e_PD(i__),PA(i__),e_PA(i__)
c .......End.of.Just test output...........
end do
close(1)
C=============================================================================
stop
end