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/catalogs/1/1209A/

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I/209A     Catalogue of 2700 double stars       (Couteau, 1993)
===============================================================================
Catalogue de 2700 etoiles doubles
      Couteau P.
      <Observatoire de la Cote d'Azur, Departement: Augustin FRESNEL
       URA 1361, 2eme Edition Revised (Juin 1993)>
      =1993CED27..C.....1C   (SIMBAD/NED Reference)
================================================================================
ADC_Keywords: Stars, double and multiple

Description:
  This catalog contains a compilation of measurements of binary stars
  discovered by Paul Couteau between 1951 and 1993. For each star, it
  contains a reference number to identify the star in the catalog, the
  Cou number, the visual magnitudes of the components, positions for
  1900, 1950, and 2000, the identification of the star in the BD or in
  the Carte du Ciel, the magnitude from that catalog, remarks such as
  the proper motion, a system to which the binary belongs or its
  position with respect to a neighboring BD star and for many stars,
  the spectral type. For each observation, the data given are the date,
  position angle, separation, telescope size, number of observations,
  and the observer. Sometimes the magnitudes estimated by the observer
  are also given.

File Summary:
-------------------------------------------------------------------------------
 FileName        Lrecl       Records    Explanations
-------------------------------------------------------------------------------
ReadMe              80             .    This file
main.dat           134          2714    The main part of the catalogue
                                            (2714 doubles)
notes.dat           86          1119    Remarks about doubles flagged with
                                            "E", "C", "R" or "O" in main file
obs.dat             93          8130    Observations of the double stars
seq.dat             68          2700    Cross reference for (COU, BD, SAO, HD,
                                                             AGK3, HIC, ...)
-------------------------------------------------------------------------------

Byte-by-byte Description of file: main.dat
-------------------------------------------------------------------------------
   Bytes Format  Units    Label    Explanations
-------------------------------------------------------------------------------
   1- 13  A13    ---      COU     *designation (number 1 to 2700, followed
                                     by components to avoid ambiguities); 
  14- 17  F4.1   mag      mA       []?=99.9 Magnitude of the brighter component
                                     (99.9 when non existent)
      18  A1     ---      sep      "-"
  19- 22  F4.1   mag      mB       []?=99.9 Magnitude of the fainter  component
                                     (99.9 when non existent)
      24  A1     ---      Eflag    a "E" = "ETOILE" field in the original 
                                      version generated a remark in "notes.dat"
  26- 27  I2     h        RAh1900  right ascension eq. 1900 (hours)
  29- 32  F4.1   min      RAm1900  right ascension eq. 1900 (minutes)
      33  A1     ---      DE-1900  declination eq. 1900 (sign)
  34- 35  I2     deg      DEd1900  declination eq. 1900 (degrees)
  37- 38  I2     arcmin   DEm1900  declination eq. 1900 (')
  40- 41  I2     h        RAh1950  right ascension eq. 1950 (hours)
  43- 46  F4.1   min      RAm1950  right ascension eq. 1950 (minutes)
      47  A1     ---      DE-1950  declination eq. 1950 (sign)
  48- 49  I2     deg      DEd1950  declination eq. 1950 (degrees)
  51- 52  I2     arcmin   DEm1950  declination eq. 1950 (')
  54- 55  I2     h        RAh      right ascension 2000 (hours)
  57- 60  F4.1   min      RAm      right ascension 2000 (minutes)
      61  A1     ---      DE-      declination 2000 (sign)
  62- 63  I2     deg      DEd      declination 2000 (degrees)
  65- 66  I2     arcmin   DEm      declination 2000 (')
  68- 71  A4     ---      Cat      Other designation: (AC, AGK2, AGK3 or BD)
  72- 74  A3     deg      Zone     declination zone
  76- 80  A5     ---      Number   number
  81- 82  A2     ---      Mult     components
      83  A1     ---      ---      "("
  84- 87  F4.1   mag      mag      []?=99.9 magnitude from catalogue
      88  A1     ---      ---      ")"
  90- 94  A5     ---      sp       spectral type from catalogue
      96  A1     ---      Cflag    [C] a "C" = "CATALMGN" field in the original 
                                   catalogue generated a remark in "notes.dat"
  98-104  F7.4   arcsec/a pmRA     ? proper motion along RA axis, in "/yr
 106-112  F7.4   arcsec/a pmDE     ? proper motion in declination, in "/yr
 114-127  A14    ---      Ref(PM)  source of proper motion
     129  A1     ---      Rem      [R] a "R" refers to a note from the "REMARQ"
                                     field in the printed version
     130  A1     ---      Oflag    [O] 'O' when orbits have been computed
                                     (parameters in notes.dat file)
 132-134  I3     ---      Nobs     number of observations in the "obs.dat" file
-------------------------------------------------------------------------------
Note on COU: 
   Two stars have other names, indicated in col. 5-13.

Byte-by-byte Description of file: notes.dat
-------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
-------------------------------------------------------------------------------
   1- 13  A13    ---     COU      COU designation, as in table "main.dat"
      14  A1     ---     Flag     [ECRO] Flag indicating the field in the
                                    printed version that provided the remark :
  15- 16  I2     ---     Seq      sequential number of the records related to
                                    every star
  18- 86  A69    ---     Text     Text of remark
-------------------------------------------------------------------------------
Note on Flag:
   E refers to the "ETOILE" field,
   C refers to the "CATALMGN" field,
   R refers to the "REMARQ" field,
   O refers to the "ORBITE" field,
  
Byte-by-byte Description of file: seq.dat
-------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
-------------------------------------------------------------------------------
   1-  4  I4     ---     COU      COU designation (number 1 to 2700)
   6-  7  I2     h       RAh2000  ? right ascension eq.2000 (hours)
   9- 12  F4.1   min     RAm2000  ? right ascension eq.2000 (minutes)
  14- 21  A8     ---     BD       number (zone in bytes 14-16)
  23- 28  I6     ---     SAO      ? number (SAO)
  30- 37  A8     ---     AGK3     number (zone in bytes 30-32)
  39- 44  I6     ---     HD       ? number (HD)
  46- 51  I6     ---     HIC      ? Hipparcos Input Catalogue number
                                    (redundant with the `notes.dat' file)
  53- 80  A28    ---     Text     Text of the remark
-------------------------------------------------------------------------------

Byte-by-byte Description of file: obs.dat
-------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1- 13  A13    ---     COU      COU designation, as in table "main.dat"
  14- 16  I3     ---     Obs      Observation sequence number
  18- 26  F9.4   a       Date     Observation date
  28- 33  F6.2   deg     theta    ?=999.99 Position angle (theta, in degrees)
                                    (999.99 when non existent)
      34  A1     ---     u_theta  ":" when theta is uncertain
      35  A1     ---     l_rho    "<" refers to the separation
  36- 41  F6.3   arcsec  rho      ? Separation (rho, in arcsec)
      42  A1     ---     u_rho    ":" when the separation is unaccurate
  44- 46  I3     ---     Aper1    ? Instrument aperture (cm or inches depending
                                    on byte 50)
      47  A1     ---     Sep      [-] "-" when a second instrument was used
  48- 49  I2     ---     Aper2    ? aperture of the 2nd instrument
      50  A1     ---     inch     """ when the instrument size is given in
                                    inches (default: cm)
      51  A1     ---     Tflag    "T" when the instrument is a telescope
                                    (default: refractor)
                                  "N" when the instrument is a Teles. Newton
      52  A1     ---     iflag    [iops] flag defined in (2)      
      54  I1     ---     Nights   ? Number of nights
      55  A1     ---     comma    "," when the number before refers only
                                    to theta
      56  I1     ---     Nrho     ? Number of nights for rho (when different)
  58-100  A43    ---     Observer Name of observer (when abbreviated, see
                                    table below) and comments (1)
-------------------------------------------------------------------------------
Note (2):
    "i" for an interferometric measurement
    "o" for occultation
    "p" for photographic
    "s" for spectrograph

Note (1): Observers' abbreviations: (from Washington Double Star catalog)
  B      W.H. van den BOS
  BAG    Y. BALEGA
  BEH    Alan L. BEHALL
  BNU    D. BONNEAU
  BAZ    P. BAIZE
  CHA    Center for High Angular Resolution Astronomy
  COU    P. COUTEAU
  DOC    J.A. DOCOBO
  DRD    P. DURAND
  GII    R. GILI
  HARTK  W. HARTKOPF
  HLN    F. HOLDEN
  HEI    W.D. HEINTZ
  J      R. JONCKHEERE
  LCR    LANCHARES
  LBU    J. LE BEAU
  LEF    J. LEFEVRE
  LIN    J.F. LING
  MRZ    W. MARKOWITZ
  MSS    G. MASSONNE
  MRL    P.J. MOREL
  MLR    P. MULLER
  MCA    H.A. McALISTER
  OLE    D.M. OLEVIC
  POP    G.M. POPOVIC
  SCA    M. SCARDIA
  SLE    G. SOULIE
  TOK    A. TOKOVININ
  VBS    G. VAN BIESBROECK
  WAK    R.L. WALKER
  WOR    C.E. WORLEY
  ZUL    D.J. ZULEVIK
  THO    THOREL
--------------------------------------------------------------------------------

Corrections made for CDS:
    The files were reformatted for CDS by D. Pourbaix, and many corrections
    were performed in agreement with the author. The most important one is:

      Cou  135 (obs 2) rho changed to 8.05"

    Errata were communicated to the author and concern the following binaries:

     5,9,10,11,13,14,19,48,60,63,107,114,135,136,164,165,166,172,174,175,191,
     278,280,282,283,288,289,315,347,357,358,387,397,430,451,452,477,478,484,
     503,533,574,586,587,589,590,592,593,610,611,647,665,681,695,725,750,775,
     776,778,779,793,823,858,880,924,933,934,937,939,959,970,979,999,1034,
     1051,1058,1067,1092,1124,1127,1135,1137,1145,1214,1218,1252,1289,1293,
     1298,1334,1396,1406,1413,1416,1419,1420,1421,1488,1511,1556,1558,1559,
     1563,1564,1565,1568,1569,1570,1571,1579,1607,1637,1670,1672,1742,1743,
     1745,1747,1761,1772,1785,1786,1801,1838,1890,1891,1892,1893,1895,1917,
     1922,1956,1961,2011,2013,2062,2075,2077,2078,2079,2080,2083,2088,2093,
     2095,2096,2097,2130,2148,2158,2197,2206,2212,2283,2367,2369,2379,2382,
     2388,2451,2466,2544,2551,2559,2582,2680

    The consistency of the coordinates in the three equinoxes was checked and
    corrected when the discrepancy was larger than 3'.

    The consistency of the observers' abbreviation with WDS was checked and
    corrected
  * 15-Jun-1995: a few more errors detected by D. Pourbaix in files "main.dat",
    "seq.dat" and "obs.dat":
     COU    6, obs  4: instrument size is 29cm (not 29")
     COU    5, obs 12: instrument size is 29cm (not 29")
     COU  599, obs  1: epoch is 1971.32 (not 1987.132)
     COU 2680: 'a' suffix was missing in BD number
     COU  358: 'a' suffix was missing in BD number
     COU  681: BD number is +22 421 (not +22 241), and SAO 75695
===============================================================================
(End)                            D. Pourbaix [ULg]                  15-Jun-1995

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