p(20-30) pt(0.3,0.5)

positives
----------
3,8,9,24,36,38    a few unused points
74 ununsed points at the crossing of two tracks
79 MTPC a/p =-1, although there exist points and are attached to the track
82 unused points on the crossing of the track
   in the closed v0 first few points not used

negatives
---------
5, 60  split
9, 10, 12, 19,   unused points(MTPC)