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 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