GRIP (Gamma-Ray Imaging Payload)

Balloon launched on: 4/3/1989 at 9:02 utc
Launch site: Australian Balloon Launching Station, Alice Springs, Australia  
Balloon launched by: National Scientific Balloon Facility (NSBF)
Balloon manufacturer/size/composition: Zero Pressure Balloon N29I-8/8/8/8T-28.40
Balloon serial number: R28.40-3-113
Flight identification number: 265N
End of flight (L for landing time, W for last contact, otherwise termination time): 4/4/1989 at 3:30 utc
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 18 h 30 m
Landing site: 20 miles NE of Fregon, South Australia

• Gamma-ray imaging observations of Supernova 1987A Ph.D. Thesis, Palmer, David M. California Institute of Technology, 1992
• GRIP website Space Radiation Laboratory - California Institute of Technology
• Hard X-Ray and Gamma-Ray Observations of SN1987A During the Period 1987-1989 21st International Cosmic Ray Conference. Volume 2, p.182
• Multiwavelength observations of the black hole candidate 1E 1740.7-2942 Ph.D.Thesis Heindl, William Adams, California Institute of Technology, 1994
• NASA Balloon Flights (1989-1998) in NASA Historical Data Book, Vol. VII: NASA Launch Systems, Space Transportation, Human Spaceflight, and Space Science, 1989-1998