| Summary: | Astrosat is India's first dedicated astronomy satellite and is scheduled to launch on boar the PSLV in 2011 After the success of the satellite-borne Indian X-ray Astronomy Experiment (IXAE), which was launched in 1996 , the Indian Space Research Organization ( ISRO ) has approved further development for a full fledged astronomy satellite - Astrosat . A large number of leading astronomy research institutions in India and abroad are jointly building various instruments for the satellite. Important areas requiring broad band coverage include studies of astrophysical objects ranging from the nearby solar system objects to distant stars, to objects at cosmological distances, timing studies of variables ranging from pulsations of the hot white dwarfs to active galactic nuclei (AGN) with time scales ranging from milliseconds to few hours to days. Astrosat is currently proposed as a multi-wavelength astronomy mission on an IRS-class satellite into a near-Earth, equatorial orbit by the PSLV. The 5 instruments on-board cover the visible (320-530 nm), near UV (180-300 nm), far UV (130-180 nm), soft X-ray (0.3-8 keV and 2-10 keV) and hard X-ray (3-80 keV and 10-150 keV) regions of the electromagnetic spectrum.
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