The present directory ftp://cdsarc.u-strasbg.fr/incoming/fresneau/sydney
 contains 291 files XXXXX.dat (plus the present README file) corresponding
  to Table 3 of the paper
 'density wave streaming motions in stars along the Sagittarius Spiral Arm'
 by A. Fresneau, A. Vaughan and R. Argyle,  published in the  AJ December issue
 vol. 130, pages 2701-2716

 The identification XXXXX corresponds to the plate number of Table 3
 (example file C306rh.dat corresponds to the plate C306rh identified in  column 8
  of Table 3).

 Each file XXXXX.dat contains N records (column 5 of Table 3) identical to :
       ih1,im1,s1,s,jd1,jm1,ss1,ss,xcm,ccx,ycm,ccy,amag,ccfl
 format(2x,2i3,f7.3,1x,f4.2,1x,2i3,f6.2,1x,f4.2,2x,2(f7.3,f5.1,1x),f5.2,1x,f5.2)

 where  ih1,im1,s1 represent the RA (Equinox 2000) in hours, minutes, seconds of time
        s = RA  error in arcsec   
        jd1,jm1,ss1 represent the  south declination (Equinox 2000) in arcdegrees,
        arcmin,  arcsec  (declination without sign)
        ss = declination  error in arcsec
        xcm, ccx = plate x-coordinate in mm (1mm = 1 arcmin) and error in microns
                   (1 micron = 0.06 arcsec)
                   X-axis is oriented towards east
        ycm,ccy = plate y-coordinate  in mm (1mm = 1 arcmin) and error in microns
                   (1 micron = 0.06 arcsec)
                   Y-axis is oriented towards the  equatorial south pole
        amag,ccfl = apparent B-magnitude and scatter during the multi-exposure.


 The  RA, declination  errors are derived in the adjustment to the GSC 1.2 .
 The apparent B-magnitude is calibrated through the Tycho 2 stars.

 The (x,y) coordinates are measured by the APM and are the first Epoch data
 (indicated by column 4 of Table 3) to be 
 matched with any other survey in  order to estimate p.m. components. We assume
 that the (x,y) coordinates represent a gnomonic projection of
 the celestial sphere over a field-of-view of 2 by 2 arcdegrees, centered on the
 R.A. and declination (Equinox 1900) indicated in columns 1 and 2 of Table 3.

 The present RA and declination for each object are computed for Epoch
 indicated by column 4 of Table 3 and are derived from the (x,y) coordinates.
 They can be improved with a different catalog and different adjustment models.
 They should suffice for identification purposes when errors are less than
 1 arcsec (= 16 microns on the plate).

.