FIRS-2 (far infrared Fourier transform spectrometer) + UV O3 PHOTOMETER

Balloon launched on: 4/30/1997 at 15:17 utc
Launch site: Fort Wainwright, Fairbanks, Alaska, US  
Balloon launched by: National Scientific Balloon Facility (NSBF)
Balloon manufacturer/size/composition: Zero Pressure Balloon Raven 23H - 600.000 m3 - AF-392.73-080-NSCR-02
Balloon serial number: W23.50-393-551-0.8/2
Flight identification number: 429N
End of flight (L for landing time, W for last contact, otherwise termination time): 4/30/1997 at 23:18 utc
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 8 h 50 m
Landing site: 10 miles SW of Bettles, Alaska, US
Campaign: ILAS instrument validation campaign.  
Payload weight: 4119 lbs

Succesful cut-down command.The flight was terminated near the edge of the Brooks Mountain Range

• FIRS-2 instrument website Harvard-Smithsonian Center for astrophysics
• Isotopic composition of stratospheric ozone J. Geophys. Res. 105, 9025-9031, 2000
• Isotopic composition of stratospheric water vapor: Measurements and photochemistry J. Geophys. Res. 106, 12,211-12,218, 2001
• NASA Balloon Flights (1989-1998) in NASA Historical Data Book, Vol. VII: NASA Launch Systems, Space Transportation, Human Spaceflight, and Space Science, 1989-1998
• Nitric acid in the middle stratosphere as a function of altitude and aerosol loading J. Geophys. Res. 104, 26,715-26,723, 1999 (PDF 0.30 Mbytes)
• Observations of OH, HO2, H2O, and O3 in the upper stratosphere: Implications for HOx photochemistry Geophys. Res. Lett. 25, 3935-3938, 1998 (PDF 0.45 Mbytes)
• Smithsonian stratospheric far-infrared spectrometer and data reduction system Smithsonian Astrophysical Observatory, Cambridge, Massachusetts (PDF)