The Optimist Citizen


Making the nation proud, the first multi wavelength space observatory launched by ISRO on 28th September 2015 makes its extraordinary way to the space, placing itself on the orbit at 650 km above the Earth’s surface.

PSLV Successfully Launches India’s Multi Wavelength Space Observatory ASTROSAT
PSLV Successfully Launches India’s Multi Wavelength Space Observatory ASTROSAT

Simultaneously accompanied by Canada’s NLS-14 nanosatellite, Indonesia’s LAPAN-A2 microsatellite and four identical LEMUR nano satellites for the United States, ASTROSAT was launched from Satish Dhawan Space Centre at 10 AM on Monday. What is noteworthy about the space mission is that, it is for the first time ISRO’S PSLV C-30 is launching satellites for the United States. With this, ISRO completes the ‘half century’ record of launching foreign satellites.

“Today is one of the eventful days for us. Our PSLV has once again proved to be a workhorse,” ISRO chairman A.S. Kiran Kumar said from the Mission Control Room, soon after the rocket injected the satellites into the intended orbits.

Model Representation of ASTROSAT explaining its parts

The 1,513 kg weighing satellite with various payloads like Ultraviolet Imaging Telescope, Large Area X-Ray Proportional Counter, Soft X-ray Telescope and Cadmium Zinc Telluride Imager serves to perform simultaneous multi-wavelength observations of various astronomical objects. The sun and star sensors, besides the gyroscopes, would provide orientation reference to the satellite. Its multidimensional functions also include- understanding the high energy processes in binary star systems containing neutron stars and black holes, to estimate magnetic fields of neutron stars, to study star birth regions and high energy processes in star systems lying beyond the Milky Way galaxy. The remarkable mission will also reach the unexplored areas of astronomical explorations as it intends to detect new briefly bright X-ray sources in the sky, to perform a limited deep field survey of the Universe in the ultraviolet region.

Fully integrated PSLV-C30 core stage with strap-ons mobile service tower
Fully integrated PSLV-C30 core stage with strap-ons mobile service tower

The outstanding mission indeed proves to be a historical achievement of the Indian space agency and is a matter of immense prestige for the nation.

Watch the video here :

Piyuli Ghosh | TOC





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