A 3-vector with more efficient storage than TVector3. 
SRVector3D width
Geometric width in <x,y,z> [cm]. 
float totalpe
Total number of PE across all PMTs. 
float timewidth
Width of the flash in time [us]. 
float fasttototal
Fast to total light ratio. 
SRVector3D center
Geometric center in <x,y,z> [cm]. 
int cryo
0 for SBND/ICARUS East, 1 for ICARUS West. 
bool onbeamtime
Is this in time with beam? 
float firsttime
Time of first hit [us]. 
float timemean
Mean time of hits [us]. 
float timesd
Standard deviation of hit times [us]. 
int firstpmt
Channel number of first hit. 
float time
Time on trigger time scale [us].