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file 1995-1996_S1-6_noyelles.data.txt
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Contents:

We give astrometric results derived from reduction of 65 lightcurves made in
1995-1996 during the PHESAT95 campaign (Thuillot et al. 2001) and 4 results 
derived from Japanese observations made in 1980 (Soma & Nakamura 1982). The 
accuracy of these results is about 20-30 mas.

The format of the present results are very near to the one of (Strugnell &
Taylor 1990), more precisely it is the same as (Vienne, Thuillot, Veiga et al.
2001).
 
There are three kinds of results: the best ones (reference 420), other good
ones (reference 421) and the other ones, with a reference xxx, because we advise
against using them. The split into these three groups has been made when
visually comparing the measures with the adjusted theoretical lightcurves, and
not when using the residuals.


Reference of the catalog:

Noyelles B., Vienne A. & Descamps P. 2003, Astrometric reduction of lightcurves
observed during the PHESAT95 campaign of Saturnian satellites, A&A 401,1159



Other references:

Soma M. & Nakamura T.  1982, Tokyo Astronomical Bulletin Second Series, 267,
3039

Strugnell, P.R. & Taylor, D.B. 1990, A&AS 83, 289

Thuillot W., Arlot J.E., Ruatti C. et al., A&A  371, 343

Vienne A., Thuillot W & Veiga C.H. et al 2001, A&A 380, 727


Format:

In a FORTRAN code, one line is read with the format:
(i3,i5,i3,f11.7,f7.3,2i4,i2,1x,a2,a1,i2,i1,
2(1x,f13.7),2i2,2(1x,f7.3),3i3,2f10.3)
The meanings of each parameter can be found in (Strugnell & Taylor
1990), but we recall them below with eventually, in parenthesis,
the differences with the original meaning:
* opp: opposition number, 1=1874 to 118=1995. 
* year,m,utc: year, month and utc date of the observation (one more
  digit for utc: f11.7) 
* tt-utc: TT-UTC in seconds (two more digits: f7.3) 
* obs: UAI observatory code from the Minor Planet Center, 
* ref: reference code of the catalog
* t.: observation type. 0=\alpha ,\delta  , 1=\Delta \alpha \cos \delta ,\Delta \delta  ,
  2=\Delta \alpha ,\Delta \delta  , 3=position angle, separation 
* obj.: subject satellite, reference satellite. 0 for Saturn, 1 to
  8 for S1 to S8 (* when there is no reference satellite that is for
  observation type 0 , C for the center of the plate which is not
  a physical object) 
* fl.: flags of presence of the first and second coordinates 
* obs1, obs2 : first and second coordinates (one more digit, it is
  0 when the coordinate is not present, see fl.) 
* s: reference system. 0=mean equator and equinox B1950, 1=true equator
  and equinox of date of observation, 2=mean equator and equinox of
  J2000 
* f: reference frame. 0=topocentric, 1=geocentric, 2=heliocentric 
* o-c1, o-c2: residuals of observations in arc-seconds (computed with
  TASS1.7 and with the format f7.3, it is 999.999 when the residuals
  are not computed and it is 888.888 when the residuals are greater
  than 100. in absolute value). 
* (r: the number of the satellite used as reference in the computation
  of o-c) 
* (-: no meaning in this series, index reserved) 
* (s: the number of the series, the scale and orientation are the same
  for all the observations of one series). 
* (xpix,ypix: original coordinates in pixels)