Mission Overview ================ The BOPPS mission was a system development and demonstration to show that balloon-borne scientific payloads can provide a rapid response to a time-critical planetary science opportunity, such as observing and characterizing the volatiles in primitive Oort-cloud comets. In February, 2013, NASA Glenn Research Center, the Johns Hopkins University Applied Physics Laboratory (JHU-APL), and the Southwest Research Institute (SwRI) were directed by NASA to develop a balloon flight for conducting planetary science observations of the comet C/2012 S1 (ISON) that would make a close approach to the earth in early November 2013. This was a fast paced high risk mission that, once developed, would be available to conduct new missions potentially every year – truly a new paradigm in NASA scientific ballooning, especially for conducting high value planetary science ‘Decadal’ measurements not possible from existing ground, air, or space assets. The Balloon Observation Platform for Planetary Science (BOPPS) mission was the second flight of this concept. It launched from Ft. Sumner, NM, at 08:20 on September 25, 2014, ascending to a float altitude of 130,000’. Its mission, to observe multiple comets and asteroids, commenced immediately after verifying the platform was fully operational. The main objective of BOPPS was to observe one or more comets, with the Oort Cloud Comet, C/2013 A1 (Siding Spring), being of special interest.