ASTC - 2.31 Pre-market now at 2.70/2.89 Astrotech’s 1st Detect Announces Tracer 1000 Begins Testing for Passenger Screening at Airports http://stockcharts.com/c-sc/sc?s=ASTC&p=D&b=5&g=0&i=t60776381787&r=1522843673763