×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 28 August, 2021

  • 12 Min Read

ASTROSAT Mission

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


An Assessment of Extreme Weather Events in India

An Assessment of Extreme Weather Events in India by CSE According to a recent report by the Centre for Science and Environment (CSE), India will experience some form of natural disaster almost every day in the first nine months of 2022. Between January 1 and September 30, 2022, India recorded 241 extreme weather events. About the evalu

India and Norway in the Green Maritime Sector

India and Norway in the Green Maritime Sector The 8th Norway-India Joint Working Group Maritime meeting was recently held in Mumbai. Indo-Norway collaboration in the GREEN MARITIME Sector The history of maritime trade with Norway dates back to 1600. Norway has technical expertise in the maritime sector, and India has enormous potentia

Arittapatti Village:Biodiversity Heritage Site

Arittapatti Village: Biodiversity Heritage Site In accordance with Section 37 of the Biodiversity Diversity Act, 2002, the Government of Tamil Nadu published a notification designating Arittapatti Village in Melur in the Madurai district as a biodiversity heritage site. The Biodiversity Heritage site is the first site to be nominated

Food-Animal Farming and Antimicrobial Resistance

Food-Animal Farming and Antimicrobial Resistance Animal health issues in factory farming have a severe impact on food safety, the environment, and the climate, which can result in antibiotic resistance (AMR). Farming of pigs, cows, and birds in close quarters is known as factory farming or intensive food-animal farming. These are industr

Report On Amazon Rainforest

Report On Amazon Rainforest Recent research from the World Wildlife Fund (WWF) titled "Living Amazon Report" 2022 claims that 35% of the rainforest has either completely disappeared or is severely degraded. The study was presented at the United Nations Framework Convention on Climate Change's 27th Conference of Parties (COP27)

Toppers

Search By Date

Newsletter Subscription
SMS Alerts