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J/A+AS/130/157      Hipparcos intermediate astrometric data (van Leeuwen+ 1998)
On the use of the Hipparcos intermediate astrometric data
       van Leeuwen F., Evans D.W.
      <Astron. Astrophys. Suppl. Ser. 130, 157 (1998)>
      =1998A&AS..130..157V      (SIMBAD/NED BibCode)
ADC_Keywords: Positional data

Mission_Name: Hipparcos

Keywords: methods: numerical - astrometry


Description:
    Summary of the great circle statistics for FAST and NDAC reduction
    results, allowing the distinction of great circles according to
    the number of accepted single star transits.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        43     2341  *Number of abscissa residuals per orbit, split
                                  into three types of solutions; (I) type 5;
                                  (II) types 7, 9 and X; and (III) types
                                  C, V, O and -.


Note to table2.dat : In the first two cases the numbers of accepted and rejected
  residuals are given. For the third case only the number of abscissae was
  available.

Byte-by-byte Description of file: table2.dat

   Bytes Format Units Label    Explanations

   1-  4  I4    ---   Orbit    Sequential orbit number
   6-  9  I4    ---   NDACIa   (I) accepted, NDAC, solutions type 5
  11- 13  I3    ---   NDACIr   (I) rejected, NDAC,
  15- 17  I3    ---   NDACIIa  (II) accepted, NDAC, solutions type 7, 9 and X
      19  I1    ---   NDACIIr  (II) rejected, NDAC,
  21- 23  I3    ---  NDACIIIa  (III) accepted, NDAC, solutions type C, V, O and -
  25- 28  I4    ---   FASTIa   (I) accepted, FAST, solutions type 5
  30- 32  I3    ---   FASTIr   (I) rejected, FAST,
  34- 36  I3    ---   FASTIIa  (II) accepted, FAST, solutions type 7, 9 and X
  38- 39  I2    ---   FASTIIr  (II) rejected, FAST,
  41- 43  I3    ---  FASTIIIa  (III) accepted, FAST, solutions type C, V, O


Acknowledgements: F. van Leeuwen 

(End)                                         Patricia Bauer [CDS]   04-Nov-1997