HIREGS IV (HIgh REsolution Gamma-ray and hard x-ray Spectrometer)

Sitio de lanzamiento: Williams Field, Estación McMurdo, Antartida  
Hora lanzamiento: 04:57:00
Lanzamiento y operación del globo a cargo de: National Scientific Balloon Facility (NSBF)
Globo: Globo de Presión Cero 29.470.000 cuft (SF3-424.37-080-NSC-X-ST)
Nº de serie del globo: W29.47-2X-14
Nº de vuelo: 444N
Peso carga útil: 3130 lbs
Peso Total: 4809 lbs

• HIREGS website Space Physics Research Group - University of California, Berkeley
• A high-resolution gamma-ray and hard X-ray spectrometer for solar flare observations in Max 1991 Max 1991: Flare Research at the Next Solar Maximum. Workshop 1: Scientific Objectives; p 262-278
• Balloon Flight Terminated Antarctic Sun - 24/1/1998 (PDF Format)
• Balloon flight test of pulse shape discrimination (PSD) electronics and background model performance on the HIREGS payload Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Vol. 491, Issue 3, Pag.390
• Ballooning Over Antarctica - Science at 125,000 feet Antarctic Sun - 10/1/1998 (PDF Format)
• Gamma-ray spectroscopy: Galactic center observations and germanium detector development Thesis (PHD) by Steven E. Boggs, UCB, Source DAI-B 59/08, p. 4171, Feb 1999, 160 pages
• NASA Balloon Flights (1989-1998) in NASA Historical Data Book, Vol. VII: NASA Launch Systems, Space Transportation, Human Spaceflight, and Space Science, 1989-1998