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IV/6        Catalogue of Correspondences CSI/ADS/IDS               (Jung+ 1973)
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Catalogue of Correspondences CSI/ADS/IDS
    Jung J., Bischoff M., Ochsenbein F.
    <Bull. Inf. CDS No. 4, p. 27 (1973)>
    =1973BICDS...4...27J
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ADC_Keywords: Cross identifications; Stars, double and multiple

Description:
   This catalog of correspondences is a cross index for the the Catalog of 
   Stellar Identifications (CSI) (Ochsenbein et al., 1981), the Aitken Double 
   Star Catalog (ADS) (Aitken, 1932), and the Index Catalogue of Visual Double 
   Stars (IDS) (Jeffers et al., 1963).  Catalog records contain the main 
   Durchmusterung identification (which is the key for the CSI), followed by 
   the ADS identification and system component letter(s), and the star's 
   coordinates (1900) from the IDS.   The ADS identifier field is blank for 
   non-ADS stars. The RA and Dec are not always listed when the star belongs 
   to ADS.

File Summary:
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 FileName       Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe             80        .   This file
catalog.dat        37    45135   Catalog Data
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Byte-by-byte Description of file: catalog.dat
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   Bytes Format   Units   Label     Explanations
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       1  A1      ---     DMsign   *[+-]+= Main Durchmusterung sign
   2-  3  I2      ---     DMzone    Main Durchmusterung Zone
   4-  9  I6      ---     DM       *DM Number
  11- 12  I2      ---     DM_cat   *Code for Durchmusterung Catalog
  14- 18  I5      ---     ID       *? ADS Identification
  20- 23  A4      ---     ABC      *[A-Z -] Component of the system
  25- 26  I2      h       RAh      *? Right ascension (1950.0) hours
  28- 29  I2      min     RAm       ? Right ascension (1950.0) minutes  
      30  I1      dmin    ---       ? Right ascension (1950.0) tenth of min.
      32  A1      ---     DE-       ? Declination (1950.0) sign
  33- 34  I2      deg     DEd       ? Declination (1950.0) degrees
  36- 37  I2      arcmin  DEm       ? Declination (1950.0) arcminutes
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Note on DMsign:
  A negative zone (z) is replaced in the file by (-z + 90).

Note on DM:
  Negative for non-DM stars. Stars without DM identification are listed at the
        end of each zone and have been given a fictitious DM identification, 
        the number being the Right Ascension (Ep 1950.0) in tenths of minutes, 
        times -1, and the zone in degrees, the code being 0.
  Single-digit zones are preceded by zeros such that byte 1 always contains
        a + or -.

Note on DM_cat:
   O to 19      = BD (Bonner DM)
  20 to 39      = CD (Cordoba DM)
  40 to 59      = CPD (Cape Phot. DM)

Note on ID:
  Field is left blank for non-ADS stars.

Note on ABC:
   A    = component A of the system, etc.
   AB   = components A and B, where separation < 3 arcmin, etc.
   Magnitude and coordinates are those of the brightest star of the 
    grouping.

Note on RAh, RAm, DEd, DEm:
   taken from IDS
   RA and Dec are not always listed when the star belongs to ADS.

Remarks:
   March 1997 - Added Brief Description (James Gass, ADC)
   August 1996 - Corrected RA of 12451 AB from 27 42.5 to 19 22.5 
    (James Gass, ADC) 
   August 1996 - Corrected RA of +10 1032 from  0 65.4 to  6  5.4 
    (James Gass, ADC) 
   August 1996 - Separated RA minutes and tenths of minutes into two
    fields for the byte-by-byte table in this document (James Gass, ADC) 

Acknowledgement:
  Special thanks are given to Francois Ochsenbein of CDS for his help in 
  identifying format problems in the data file.

References:
  Jeffers H.M., van den Bos W.H., Greeby F.M., 1963, Publ. Lick. Obs. 21
  Jung J., Ochsenbein F. (1972) Bull. Inf. CDS No. 3, p. 6
  Jung J., Bischoff M. (1971) Bull. Inf. CDS No. 2, p. 8
  Ochsenbein F., Bischoff M., Egret D. 1981, Astron. Astrophys. Suppl. Ser. 
    43, 259
  Worley C. (1972) Private Communication

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(End)                  James E. Gass & Julie Anne Watko [SSDOO/ADC]  13-Mar-1997