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I/78                SPF3 Catalogue (Loyola+ 1974)
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Third Santiago-Pulkovo Fundamental Stars Catalogue (SPF3)
     Loyola P.R., Shishkina V.N.
    <Publ. Dept. Astronomy Univ. of Chile 2, 159 (1974)>
    =1974PDAUC...2..159L
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ADC_Keywords: Meridian observations ; Positional data ; Stars, fundamental

Description:
    The "Third Santiago-Pulkovo Fundamental Stars Catalogue (SPF3)" is a
    catalogue of right ascensions (the primary datum) of 671 fundamental
    bright stars, as measured with a Zeiss broken transit instrument at
    Cerro Calan Observatory in Chile. The observations were made in series
    consisting of 70 stars observed along the meridian from +42deg to the
    pole in upper culmination and from the pole to -70deg in lower
    culmination; the program consisted of 231 series of observations.

    In addition to the final reduced right ascensions for the program
    stars, the catalogue contains cross identifications to the N30 (Morgan
    1952) and FK4 (Fricke et al. 1963) catalogues, visual magnitudes,
    approximate declinations (equinox 1950.0), mean epochs of the
    observations, and mean errors of the determined right ascensions.

    This document describes the machine-readable version of the SPF3
    catalogue as distributed by the Astronomical Data Centers. It is
    intended to enable users to read and process the catalogue data
    without unnecessary problems and guesswork. The source reference
    should be consulted for details regarding the instrument
    characteristics, measurements, reductions, and comparisons with other
    catalogues.


File Summary:
--------------------------------------------------------------------------------
 FileName    Lrecl    Records    Explanations
--------------------------------------------------------------------------------
ReadMe          80          .    This file
catalog.dat     42        671    The SPF3 Catalogue
--------------------------------------------------------------------------------

Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  3  I3     ---     SPF3     sequential number.
   4-  7  I4     ---     FK4      [1/1987]? FK4 (Fricke et al., 1963)
   8- 12  I5     ---     N30/GC   [1/33342]? N30 or GC number (see byte 13).
      13  A1     ---     n_N30/GC [*] Asterisk (*) if the N30/GC contains
                                      a GC identification; otherwise blank.
  14- 16  I3     0.01mag Vmag     Visual magnitude
  17- 18  I2     h       RAh      Right Ascension 1950 (hours)
  19- 20  I2     min     RAm      Right Ascension 1950 (minutes)
  21- 25  I5     ms      RAms     Right Ascension 1950 (milli-seconds)
      26  A1     ---     DE-      Approximate Declination 1950 (sign)
  27- 28  I2     deg     DEd      Approximate Declination 1950 (degrees)
  29- 31  I3   0.1arcmin DEdm     Approximate Declination 1950 (deci-minutes)
  32- 37  I6     0.01yr  EpRA     [196300/196500] Mean epoch for right
                                    ascension observations
  38- 39  I2     ---     o_RAms   Number of observations
  40- 42  I3     ms      e_RAms   Mean error of RAms
--------------------------------------------------------------------------------

Related Data:
  I/82 : SPF1 Catalogue (Anguita et al., 1975, =1975PDAUC...2..181L)
  I/44 : SPF2 Catalogue (unpublished)

References:
  Fricke, W. and Kopff, A., 1963, Fourth Fundamental Katalog (FK4),
    Veroeff.  Astron. Rechen-Inst. Heidelberg, No. 10.
    (Catalogue: I/143)
  Morgan, H.R., 1952, "Catalog of 5,268 Standard Stars for the Equinox
    and Epoch 1950.0 Based on the Normal System N30",
    Astron. Papers Amer. Ephemeris 13, Part III.
    (Catalogue: I/13)

Acknowledgments:
    Appreciation is expressed to Dr. A. Gutirrez-Moreno of the
    Universidad de Chile for supplying the published catalogue in printed
    form, and to M.H. Warren for proofreading the machine-readable
    version.

Historical Notes:
  * May 1982: The SPF3 catalogue was keyed directly to disk storage
    and proofread at the Astronomical Data Center,
    NASA Goddard Space Flight Center.
    File documented by Wayne H. Warren Jr., as document
    NSSDC/WDC-A-R&S 82-17
  * 18-Sep-1995: documented with CDS standards; transformed epochs
    initially starting at 1950.00
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(End)      Dimitri Polojentsev [Pulkovo], Francois Ochsenbein [CDS]  18-Sep-1995