B/sb9   SB9: 9th Catalogue of Spectroscopic Binary Orbits  (Pourbaix+ 2004-2009)
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The Ninth Catalogue of Spectroscopic Binary Orbits (Version 2009Aug)
     Pourbaix D., Tokovinin A.A, Batten A.H., Fekel F.C., Hartkopf W.I.,
     Levato H., Morell N.I., Torres G., Udry S.
    <Astron. Astrophys. 424, 272 (2004)>
    =2004A&A...424..727P
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ADC_Keywords: Binaries, orbits ; Binaries, spectroscopic

Keywords: stars: binaries: spectroscopic -
          astronomical data bases: miscellaneous  - catalogs

Abstract:
    The Ninth Catalogue of Spectroscopic Binary Orbits continues the
    series of compilations of spectroscopic orbits carried out over the
    past 35 years by Batten and collaborators (see e.g. Cat. V/64).

    The catalogue is continuously updated, see http://sb9.astro.ulb.ac.be/

    This version is dated 20-Aug-2009. Previous versions may be found in
    subdirectories "v00" (April 2005), "v01" (September 2005), etc...

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
main.dat         110     2958   Position, magnitudes and spectral types
alias.dat         36    10428   List of other designations
orbits.dat       294     3632   Orbital parameters
notes.txt        479    35623   Individual remarks on stars and orbits.


See also:
    http://sb9.astro.ulb.ac.be : the SB9 home page
    V/64 : Eighth Orbital Elements of Spectroscopic Binaries (Batten+ 1989)


Byte-by-byte Description of file:  main.dat

   Bytes Format Units   Label   Explanations

   1-  4  I4    ---     Seq     System Number (SB8 number when Seq<=1469)
   6- 15  A10   ---     B1900   Name based on B1900 position
                                (for backward compatibility with SB8=Cat. V/64)
  17- 18  I2    h       RAh     Right Ascension J2000 (hours)
  19- 20  I2    min     RAm     Right Ascension J2000 (minutes)
  21- 25  F5.2  s       RAs     Right Ascension J2000 (seconds)
      26  A1    ---     DE-     Declination J2000 (sign)
  27- 28  I2    deg     DEd     Declination J2000 (degrees)
  29- 30  I2    arcmin  DEm     Declination J2000 (minutes)
  31- 34  F4.1  arcsec  DEs     Declination J2000 (seconds)
  36- 40  A5    ---     Comp    Component
  42- 47  F6.3  mag     mag1    ? Magnitude of component 1
      48  A1    ---     n_mag1  [PBVRrIK] Filter in which mag1 is given
  50- 55  F6.3  mag     mag2    ? Magnitude of component 2
      56  A1    ---     n_mag2  [PBVRK] Filter in which mag2 is given
  58- 73  A16   ---     Sp1     MK Spectral type component 1
  75- 84  A10   ---     Sp2     MK Spectral type component 2
  86-110  A25   ---     Name    Name of the source (HIP when existing)


Byte-by-byte Description of file:  alias.dat

   Bytes Format Units   Label     Explanations

   1-  4  I4    ---     Seq       System Number, as in "main.dat"
   6- 36  A31   ---     Name      Other designation


Byte-by-byte Description of file:  orbits.dat

   Bytes Format Units   Label   Explanations

   1-  4  I4    ---     Seq     System Number, as in "main.dat"
       6  I1    ---     o       Orbit number
   8- 23  F16.9 d       Per     [0.05,116675] Period
      25  A1    ---     f_Per   [a] a=assumed (fixed)
  26- 40  F15.9 d       e_Per   ? Mean error on Per
  42- 57  F16.8 d       T0      ? Periastron time (JD)
      59  A1    ---     n_T0    [a] a=assumed (fixed)
  60- 72  F13.8 d       e_T0    ? Mean error on T0
  74- 77  F4.1  ---     f_T0    ? Flag on T0 (2)
  79- 89  F11.9 ---     e       Orbital eccentricity
      91  A1    ---     f_e     [>a] a=assumed (fixed) (1)
  92-102  F11.9 ---     e_e     ? Mean error on eccentricity
 104-111  F8.4  deg     omega   [0,360[? Argument of periastron
     113  A1    ---    f_omega  [a] a=assumed (fixed)
 114-121  F8.4  deg    e_omega  ? Mean error on omega
 123-132  F10.5 km/s    K1      ? Velocity amplitude of primary
     133  A1    ---     u_K1    Uncertainty flag (:) on K1
     135  A1    ---     f_K1    [>a] a=assumed (fixed) (1)
 136-145  F10.5 km/s    e_K1    ?   Mean error on K1
 147-156  F10.5 km/s    K2      ? Velocity amplitude of secondary
     157  A1    ---     u_K2    Uncertainty flag (:) on K2
     159  A1    ---     f_K2    [a] a=assumed (fixed)
 160-169  F10.5 km/s    e_K2    ?  Mean error on K2
 171-180  F10.5 km/s    V0      ? Systemtic velocity
     181  A1    ---     u_V0    Uncertainty flag (:) on V0
     183  A1    ---     f_V0    [a] a=assumed (fixed)
 184-193  F10.5 km/s    e_V0    ?  Mean error on V0
 195-203  F9.6  km/s    rms1    ? rms residuals of Radial Velocity primary
 205-213  F9.6  km/s    rms2    ? rms residuals of Radial Velocity secondary
 215-218  I4    ---     o_K1    ? Number of observations of RV1
 220-223  I4    ---     o_K2    ? Number of observations of RV2
 225-227  F3.1  ---     Grade   ? Grade of orbit (0=poor, 5=definitive)
 229-279  A51   ---     Ref     Reference (bibcode) of orbit publication
 281-290  A10   ---     Contr   Contributor
 292-294  A3    ---     ---     [PUB] Access code (public)

Note (1): the symbol '>' indicates that the error is large
     (larger than the value); the symbol 'a' indicates that the
     value was not computed, but assumed.
Note (2): a non-zero value indicates that T0 does not correspond to the
     periastron epoch, but to some other phenomena (e.g. eclipse)


Acknowledgements:
    This version was prepared with the help of Dimitri Pourbaix.

History:
  * 14-Apr-2005: Version 2418 binaries, 2815 orbits
  * 30-Sep-2005: Version 2472 binaries, 2898 orbits
  * 17-Mar-2007: Version 2746 binaries, 3281 orbits
  * 23-Dec-2008: Version 2856 binaries, 3441 orbits
  * 15-Feb-2009: Version 2861 binaries, 3448 orbits
  * 15-Mar-2009: Version 2861 binaries, 3451 orbits
  * 23-Aug-2009: Version 2945 binaries, 3608 orbits
  * 30-Aug-2009: Version 2958 binaries, 3632 orbits
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(End)                                   Francois Ochsenbein [CDS]    30-Aug-2009