*************************************************************************
   71161
   This is the 3rd run of the Virgo cluster mapping project with 3 main
   scientific aims. The 1st one is to obtain an evidence of interaction
   between M87 cluster and M60 subcluster in the form of temperature rise
   and metallicity variation, such as seen in M49 direction. The 2nd aim
   is to map out r = 1.5 deg (450 kpc) region of M87 and to trace the
   steep abundance gradients of Fe, Si and S out to the cluster scale. The
   morphological comparison between metals and galaxies should reveal the
   origin and process of metal injection. Finally, with this observation,
   we will almost complete the full X-ray map of the Virgo cluster up to
   10 keV. Detailed comparison of X-ray and optical structures will tell
   us how Virgo cluster has evolved and acquired the present complex
   morphology.
 *************************************************************************