The sunspot sketches obtained at Tokyo Astronomical Observatory
and National Astronomical Observatory by using a Zeiss 20cm
refractor were digitized, and the coordinates of sunspots were
collected in files "pos<year>.dat".

List of entries:
NO  = Mitaka sunspot number
MO  = month (1-12)
DA  = day of the month
HO  = observing time (hour)
MI  = observing time (minute)
X   = x-coordinate of a sunspot
Y   = y-coordinate of a sunspot
T   = Zurich sunspot type  0=A, 1=AA, 2=B, 3=C, 4=D, 5=E, 6=F, 7=G, 8=H, 9=J
      AA means non-single A-type spots
P   = 1(preceding), 2(following), 3(center)
EX  = x-coordinate of the eastern end of the diameter running celestial EW
EY  = y-coordinate of the eastern end of the diameter running celestial EW
WX  = x-coordinate of the western end of the diameter running celestial EW
WY  = y-coordinate of the western end of the diameter running celestial EW

The data up to 1992 April were compiled by Maspul Aini Kambry as
part of his PhD thesis work at The University of Tokyo. The results are
found in
     Kambry and Nishikawa, Solar Phys., 126, 89, 1990,
     Kambry et al., Solar Phys., 132, 41, 1991,
     Yoshimura and Kambry, Solar Phys., 143, 205, 1993.
If you intend to use the data, you are requested to contact him at
     Dr.M.A.Kambry
     Ionospheric Research and Development Center
     Indonesian National Institute of Aeronautics and Space (LAPAN)
     Jl.Dr Junjunan 135
     P.O.Box 26
     Bandung 40173, Indonesia

The data from 1992 May to 1998 December were digitized by
Yoko Ohtani, Atsuya Sato, Seiichi Takahashi, Yuriko Yamazaki,
Tadaoki Hagino, Kyoichiro Aoki, Wakako Yoneshima (all from
Meisei University) and Yohei Yamauchi (Graduate University for
Advanced Studies/NAOJ).  The digitizer they used is different
from what Kambry used, and their pointing device (a stylus pen)
may not be as accurate as in Kambry's instrument that used a
cross-hair cursor.