DPM Particle position after a certain time
 

Hi all,
I'm doing steady state DPM simulations (Uncoupled) on a steady state solution. I want to find the leading edge of the particle flow after a certain time (Like a snap shot). At the moment, I can get data for particle position with time. The problem is particles have spent different times in the domain. If anyone can suggest something, I would be great full. Thank you