EXITE-2 (Energetic X-Ray Imaging Telescope Experiment) + MIXE-2 (Marshall Imaging X-ray Experiment)

Balloon launched on: 5/7/1997 at 16:16 utc
Launch site: Scientific Flight Balloon Facility, Fort Sumner, (NM), US  
Balloon launched by: National Scientific Balloon Facility (NSBF)
Balloon manufacturer/size/composition: Zero Pressure Balloon Raven 40L - 1.100.000 m3
Balloon serial number: W39.57-2-21
Flight identification number: 430N
End of flight (L for landing time, W for last contact, otherwise termination time): 5/8/1997 at 10:06 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: W Oklahoma City, US
Payload weight: 5993 lbs

Two complementary experiments for imaging hard X-ray by a telescope using a coded-aperture mask and a NaI/CsI phoswich detector operating in the energy range 20--600 keV

• Development of an Energetic X-Ray Imaging Telescope Experiment (EXITE) and Associated Balloon Gondola System Final Report; 1 Apr. 1984 - 31 Dec. 1997
• Instrumentation for X-Ray Astronomy from High-Altitude Balloons: Recent Developments and Future Plans Technical Memorandum (1997)
• NASA Balloon Flights (1989-1998) in NASA Historical Data Book, Vol. VII: NASA Launch Systems, Space Transportation, Human Spaceflight, and Space Science, 1989-1998
• Peeking at the Innards of the Universe NASA Press release