BARREL (Balloon Array for Radiation belt Relativistic Electron Losses) is a multiple-balloon investigation that will study Earth's Radiation Belts.
Atmospheric losses of relativistic electrons play an important role in radiation belt dynamics; precipitation into the atmosphere may even completely deplete the radiation belts in some cases.
BARREL is the first NASA Living With a Star Geospace Mission of Opportunity, and will support NASA's RBSP (Radiation Belt Storm Probes) mission.
The SANAE team got the rest of their cargo and were setting up their workspace, expecting to start checking out the first payload today or tomorrow.
The Halley team got the Iridium antennas mounted on the roof and finished the bench checkout of Payload 1B. Next step (tomorrow) is a full system test outside with solar panels. We were also able to get our helium inflation system set up and will be checking it out more tomorrow.
In addition, we had our ATP review today and received the authority to proceed with operations from NASA/BPO. We still need to complete a Flight Readiness Review before the first launch and that is schedule for Monday.
Weather is deteriorating a bit, but we are still looking at Monday evening as a possibility.