2002-2006 SPASE-2 TeV Gamma-Ray Source Search
Data Sample / Processing / Selection
SPASE-2 data exists from 1997 to 2006. Every file that could be
extracted from tapes is processed.
X-talk filter, and hit cleaning is applied before reconstruction.
Known periods with different trigger conditions and hardware problems
have been omitted.
Every event with 4 station hit is reconstructed with maximum
likelihood core location method if the first guess S30>0.
The quality of data is monitored for a stable daily trigger rate
(20% variability is allowed for atm. pressure effect).
Unstable days have been omitted from the Level
1 Data Set.
To minimize systematics due to hardware change in 2002, we devide the
data set into pre and post-2002.
In this initial analysis we use the post-2002 data set.
Summary of the post-2002 Data Set