GRAPE (Gamma-Ray Polarimeter Experiment) / FACTEL

Balloon launched on: 9/23/2011 at 14:23 utc
Launch site: Scientific Flight Balloon Facility, Fort Sumner, (NM), US  
Balloon launched by: Columbia Scientific Balloon Facility (CSBF)
Balloon manufacturer/size/composition: Zero Pressure Balloon  
Flight identification number: 624N
End of flight (L for landing time, W for last contact, otherwise termination time): 9/24/2011 at 18:46 utc
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 28 h 20 m
Landing site: N of Paducah, Texas, US

• Balloon flight results of a FAst compton telescope (FACTEL) 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC), Anaheim, CA, 2012, pp. 1893
• Balloon-based Experiment To Measure Gamma Rays 6,500 Light Years Distant University of New Hampshire website
• Development of a FAst Compton TELescope (FACTEL) Ph.D Thesis by Manuel Grégory Julien, University of New Hampshire, 2015
• Examining celestial polarization with the Gamma Ray Polarimeter Experiment (GRAPE) Ph.D Thesis by Taylor Pyne Connor, University of New Hampshire, 2011
• From Soup to (GRAPE) Nuts Spheres Online Magazine, Fall 2011
• Plans for the next GRAPE balloon flight Proc. SPIE 8859, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVIII, 885909 (September 26, 2013)