I/193     Positions and Proper Motions - South (Bastian+ 1993)
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Catalogue of Positions and Proper Motions - South
      Bastian U., Roeser S.
      
      =1993pscs.book.....R
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ADC_Keywords: Positional data; Proper motions

Description: 
  PPM South gives positions and proper motions of 197179
  stars south of about -2.5 degrees declination. Its main purpose
  is to provide a convenient, dense and accurate net of astrometric
  reference stars on the southern celestial hemisphere. This net is
  designed to represent as closely as possible the new IAU (1976)
  coordinate system on the sky, as defined by the FK5 star
  catalogue (Fricke et al., 1988).  In other words, it is a
   representation of this system at higher star densities and
  fainter magnitudes.  PPM South is the southern-hemisphere
  complement to the PPM Star Catalogue (Roeser and Bastian, 1991),
  which covers the northern hemisphere, plus a strip between the
  equator and about -2.5 degrees declination.  At the border line a
  continuous transition between the northern and southern part was
  tailored in such a way that no overlap, nor gaps, nor double
  entries occurred.

  The PPM South consists of three files: a descriptive document
  supplied by the authors for more detail regarding the scope,
  construction, properties, and usage of PPM South; the data file for
  the PPM South itself; and a version of PPM South for equinox and epoch
  B1950.0, FK4 system, in the format of the preliminary PPM North
  (Roeser and Bastian, 1991: Astronomisches Rechen-Institut, Heidelberg,
  Vols. I and II, printed by Spektrum Akademischer Verlag, Heidelberg).
  See the author-supplied documentation for more complete information.


File Summary:
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 FileName    Lrecl     Records         Explanations
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ReadMe          80           .         This file
descrip.doc     80         984         Authors' description
ppmsouth.dat   131      197179         Positions and Proper Motions - South
ppmsofmt.dat   138      197179         PPM South - in format of old PPM North
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Byte-by-byte Description of file: ppmsouth.dat
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   Bytes  Format  Units     Label    Explanations  
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   2-  7   I6     ---       PPM     *Designation of the star
  10- 18   A9     ---       DM      *BD (zones -02 to -22), else CD
  20- 23   F4.1   mag       mag     *Magnitude
  25- 26   A2     ---       Sp      *Spectral type
  28- 29   I2     h         RAh      Right Ascension J2000 (hours)
  31- 32   I2     min       RAm      Right Ascension J2000 (minutes)
  34- 39   F6.3   s         RAs      Right Ascension J2000 (seconds)
      42   A1     ---       DE-      Declination J2000 (sign)
  43- 44   I2     deg       DEd      Declination J2000 (degrees)
  46- 47   I2     arcmin    DEm      Declination J2000 (minutes)
  49- 53   F5.2   arcsec    DEs      Declination J2000 (seconds)
  56- 62   F7.4   s/yr      pmRA    *Proper motion in RA, J2000
  64- 69   F6.3   arcsec/yr pmDE    *Proper motion in DE, J2000
  71- 72   I2     ---       N       *Number of individual published positions used
  74- 75   I2     10mas     e_RA    *Mean error of RA
  77- 78   I2     10mas     e_DE    *Mean error of DE
  80- 83   F4.1   mas/yr    e_pmRA  *Mean error of pmRA
  85- 88   F4.1   mas/yr    e_pmDE  *Mean error of pmDE
  90- 94   F5.2   yr        EpRA    *Weighted mean epoch, RA and pmRA
  96-100   F5.2   yr        EpDE    *Weighted mean epoch, DE and pmDE
 102-107   I6     ---       SAO      [1/258997]? SAO Designation
 109-114   I6     ---       HD       [1/359000]? Henry Draper Designation
 117-125   A9     ---       CPD      Cape Photographic Durchmusterung Designation
     127   A1     ---       Flag1   *'P' - problem, 'C' - comment
     128   A1     ---       Flag2   *'D' - double star
     129   A1     ---       Flag3   *    - not used
     130   A1     ---       Flag4   *'F' - member of FK5
     131   A1     ---       Flag5   *'R' - remark, 'V' - V mag (CPC-2)
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Note on PPM: 
  Designation of the star in PPM South starting with No. 181732,
  see chapter 3 of the author's description file.

Note on DM:
  Designation of the star in the Bonner Durchmusterung (for zones from
  -02 to -22 degrees) or in the Cordoba Durchmusterung (zones -23 to
  -89 degrees).

Note on mag and Sp:
  See chapter 3 of description file.

Note on pmRA and pmDE:
  Proper motion in right ascension fro epoch and equinox J2000.0,
  on the system of FK5 given in seconds of time per Julian year.

Note on N:
  Number of individual published positions used for the
  derivation of the position and proper motion given.

Note on e_RA:              
  Mean error of right ascension at the mean epoch of right ascension,
  multiplied by the cosine of declination, given in units of #0.01
  seconds of arc.

Note on e_DE:
  Mean error of declination at the mean epoch of declination, given in
  units of #0.01 seconds of arc.

Note on e_pmRA:
  Mean error of the proper motion in right ascension, multiplied by
  the cosine of declination, given in units of 0.001 seconds of arc
  per Julian year.

Note on e_pmDE:
  mean error of the proper motion in declination given in units of
  0.001 seconds of arc per Julian year

Note on EpRA:
  Weighted mean epoch of the measured positions used for the
  derivation of RA and pmRA, given in years since 1900.0.

Note on EpDE:
  Weighted mean epoch of the measured positions used for the
  derivation of DE and pmDE, given in years since 1900.0.

Note on Flag1: 
  P - problem case, preferably not to be used as astrometric
      reference star.  
  C - a critical comment is given in the List of Critical Comments. 
      Not to be used as astrometric reference star.

Note on Flag2:
  D - double star, preferably not to be used as astrometric
      reference star.
  
Note on Flag3:
  Not used, void for consistency with PPM (north).
  
Note on Flag4:
  F - member of FK5, mostly bright stars, original FK5 data
      are given.
  
Note on Flag5:
  R - a remark is given in the List of Remarks on Individual
      Stars.
  V - the magnitude is a photographic V magnitude copied from
      CPC-2.
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Byte-by-byte Description of file: ppmsofmt.dat
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   Bytes  Format  Units            Label      Explanations  
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   2-  4   A3     ---              cat        Characters 'PPM'
   5- 10   I6     ---              PPM        Designation of the star
  11- 16   F6.1   mag              mag        Magnitude
  19- 20   A2     ---              Sp         Spectral type
      22   A1     ---              Flag1     *Problem flag
  24- 38   D15.8  rad              RA1950     RA equinox and epoch B1950, FK4
  40- 54   D15.8  rad              DE1950     DE equinox and epoch B1950, FK4
  56- 67   D12.5  0.01rad/yr       pmRA1950   Proper motion in RA, B1950, FK4
  69- 80   D12.5  0.01rad/yr       pmDE1950   Proper motion in DE, B1950, FK4
  82- 96   D15.8  rad              RA         RA equinox and epoch J2000, FK5
  98-112   D15.8  rad              DE         DE equinox and epoch J2000, FK5
 114-125   D12.5  0.01rad/yr       pmRA       Proper motion in RA, J2000, FK5
 127-138   D12.5  0.01rad/yr       pmDE       Proper motion in DE, J2000, FK5
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Note on Flag1: 
  P - problem case, preferably not to be used as astrometric
      reference star.  
  C - a critical comment is given in the List of Critical Comments. 
      Not to be used as astrometric reference star.
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References:
  Fricke, W., Schwan, H., Lederle, T. (1988): Fifth Fundamental
     Catalogue (FK5). Part I. The Basic Fundamental Stars.
     Veroeff. Astron. Rechen-Institut Heidelberg Nr.32.
  IAU (1976): IAU Transaction XVI B, Reidel Publ., Dordrecht 1977.
  Roeser, S., Bastian, U. (1991): PPM Star Catalogue, Astronomisches 
     Rechen-Institut, Heidelberg, Vols. I and II, printed
     by Spektrum Akademischer Verlag, Heidelberg
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(End) Lee E. Brotzman [Hughes STX] and Gail L. Schneider [NSSDC/ADC] 14-Nov-1994