Teams supporting the Earth Venture Suborbital-3 project, Dynamics and Chemistry of the Summer Stratosphere (DCOTSS), began integration of instruments onto the ER-2 at AFRC this week in preparation for the July deployment to Salina, Kansas. Earth Science Project Office personnel and three instrument teams (PALMS (Particle Analysis by Laser Mass Spectrometry), POPS (Printed Optical Particle Spectrometer), and MMS (Meteorological Measurement System)) arrived in Palmdale and began work May 3rd.