KEYWORDS: Ultraviolet radiation, Astronomy, Earth's atmosphere, Atmospheric monitoring, Absorption, Near ultraviolet, Ozone, Solar processes, Signal to noise ratio, Wind energy
The ozone layer has a complex spectral absorption profile at NUV wavelengths. It is dependent on seasonal effects due to solar intensity, as well as atmospheric circulation of the ozone layer. Getting above this then becomes imperative for getting a usable SNR for scientific observations. GLUV is an affordable, long duration, high altitude balloon experiment which will fly a network of NUV telescopes at altitudes of 20-30 km. GLUV Pathfinder is a spectrometer based system to identify the sky background in the NUV, measuring this as a function of altitude, latitude, and seasonal phase in the regimes that the final GLUV project will experience. The development of dedicated NUV instrumentation is highly important for supernovae astronomy, as these higher energy wavelengths reveal their initial detonation conditions. GLUV is expected to capture the initial shocks of these events at a rate of 10+ per year of operation, well in excess of the few instances that have been seen to date
GLUV is a balloon-based near UV survey telescope under development. The primary objective of GLUV is high- cadence observations of transient events such as early UV observations of supernova. The ozone layer absorbs a considerable amount of UV radiation, so it is important for a UV balloon telescope to achieve ight altitude above the ozone layer. The ozone layer density varies with respect to latitude, altitude and season. The structure and behaviour of ozone distribution is an important factor to be studied to account for astronomical ultraviolet observations. GLUV pathfinder is a spectrometer based system to identify the sky background at intended ight altitudes and atmosphere transmission GLUV will experience. In this presentation, we will present the design and development of the GLUV pathfinder system.
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