×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 28 August, 2021

  • 12 Min Read

ASTROSAT Mission

  • ASTROSAT is India’s first dedicated multi wavelength space observatory.

  • AstroSat is the first dedicated Indian astronomy mission aimed at studying celestial sources in X-ray, optical and UV spectral bands simultaneously.
  • The payloads cover the energy bands of Ultraviolet (Near and Far), limited optical and X-ray regime (0.3 keV to 100keV).
  • One of the unique features of AstroSat mission is that it enables the simultaneous multi-wavelength observations of various astronomical objects with a single satellite.
  • AstroSat with a lift-off mass of 1515 kg was launched on September 28, 2015 into a 650 km orbit inclined at an angle of 6 deg to the equator by PSLV-C30 from Satish Dhawan Space Centre, Sriharikota. The minimum useful life of the AstroSat mission is expected to be 5 years.
  • The science data gathered by five payloads of AstroSat are telemetered to the ground station at MOX. The data is then processed, archived and distributed by Indian Space Science Data Centre (ISSDC) located at Bylalu, near Bengaluru.

The scientific objectives of AstroSat mission are:

  • To understand high energy processes in binary star systems containing neutron stars and black holes;
  • Estimate magnetic fields of neutron stars;
  • Study star birth regions and high energy processes in star systems lying beyond our galaxy;
  • Detect new briefly bright X-ray sources in the sky;
  • Perform a limited deep field survey of the Universe in the Ultraviolet region.

ASTROSAT detects a rare galaxy

  • India’s first multi-wavelength satellite, which has five unique X-ray and ultraviolet telescopes working in tandem, AstroSat, has detected extreme-UV light from a galaxy, called AUDFs01, 9.3 billion light-years away from Earth,” Inter-University Centre for Astronomy and Astrophysics (IUCAA) said.
  • The discovery was made by an international team of astronomers led by Dr Kanak Saha, associate professor of astronomy at the IUCAA, and published on August 24 by ‘Nature Astronomy’, the release said.
  • This team comprised scientists from India, France, Switzerland, the USA, Japan and The Netherlands.
  • Saha and his team observed the galaxy, which is located in the Hubble Extreme Deep field, through AstroSat.
  • Earlier, NASA’s Hubble Space Telescope (HST), a significantly larger than UVIT (UV imaging telescope), did not detect any UV emission (with energygreater than 13.6 eV) from this galaxy because it is too faint, it said.
  • AstroSat/UVIT was able to achieve this unique feat because the background noise in the UVITdetector is much less than the ones on HST

Source: ISRO


  48th G7 SUMMIT IN GERMANY

   48th G7 SUMMIT IN GERMANY  The summit was held in BAVARIAN ALPS Germany from June 26th to 28th 2022. PT POINTER G7 48TH Summit was held under the presidency of Germany at BAVARIAN ALPS. Member Countries: US, Canada, France, UK, Germany, Italy, and Japan. BAVARIAN ALPS: It is a collectiv

MISLEADING ADVERTISEMENTS AND ROLE OF ENDORSERS

MISLEADING ADVERTISEMENTS AND ROLE OF ENDORSERS IN ADVERTISING  Although a monetary penalty is provided for any misleading advertisement, but there are grey areas that need to be addressed. INDIAN ADS THAT WERE FOUND TO BE MISLEADING Arihant Mattress- Corona-Resistant The Arihant mattress released an advertisement in a Gu

Lancet Study On Road Safety and India’s Road Safety

Lancet Study On Road Safety and India’s Road Safety Measures The Lancet study highlights the urgency of implementing a safe system approach that can effectively address road injury death by 2030 and the number of lives that can be saved through intervention in road safety risk factors. The report uses mortality data from the Global Burd

PARTNERS IN THE BLUE PACIFIC

PARTNERS IN THE BLUE PACIFIC US, Australia, New Zealand, Japan, and the United Kingdom have launched the new initiative known as ‘Partners in the Blue Pacific’ for effective and efficient cooperation with the small island nation of the region. It aims to enhance cooperation in the area of the climate crisis, connectivity, transpor

PGII to counter China's Belt and Road Initiative

PGII to counter China's Belt and Road Initiative In the recent G7 summit in Germany, the ambitious Partnership for Global Infrastructure and Investment (PGII) was unveiled, with the aim of collective mobilization of $600 billion by 2027 for transparent investment in infrastructure projects in developing and middle-income countries.  

Toppers

Search By Date

Newsletter Subscription
SMS Alerts