Third-generation weather satellite INSAT-3DS

News Excerpt:

Recently, Indian space research organisation (ISRO) has launched INSAT-3DS using GSLV-F14.

More about INSAT-3DS:

  • INSAT-3DS Satellite is a follow-on mission of Third Generation Meteorological Satellite from Geostationary Orbit. 
  • The Satellite is an exclusive mission designed for enhanced meteorological observations, monitoring of land and ocean surfaces for weather forecasting and disaster warning.
  • The INSAT mission is fully funded by the Ministry of Earth Sciences (MoES).
  • It was launched from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh.
  • It was lifted into orbit by the Geosynchronous Satellite Launch Vehicle (GSLV) rocket, designated GSLV-F14.
    • The satellite was deployed to geostationary orbit, which lies (35,786 kilometres) above Earth. 
  • INSAT-3DS will expand the country's meteorological (weather, climate, and ocean related) capabilities with the presently operational INSAT-3D and INSAT-3DR in-orbit satellites.

Payloads: 

  • It is equipped with state-of-the-art payloads: 
    • An imager payload with a six-channel optical radiometer to generate images of the Earth and its environment.
    • A 19-channel sounder payload to provide information on the atmosphere. 
    • A data relay transponder to receive meteorological, hydrological and oceanographic data from automatic data collection platforms.
    • A satellite aided search and rescue transponder that relays a distress signal or alert from beacon transmitters with global coverage.

Objectives of INSAT-3DS:

  • The primary objectives of the mission are:
    • To monitor Earth’s surface, carryout Oceanic observations and its environment in various spectral channels of meteorological importance.
    • To provide the vertical profile of various meteorological parameters of the Atmosphere.
    • To provide the Data Collection and Data Dissemination capabilities from the Data Collection Platforms.
    • To provide the Satellite Aided Search and Rescue services.
  • INSAT-3DS aims to enhance the monitoring of Earth’s surface, atmosphere, oceans, and environment.
  • The initiative will boost India’s weather, climate, and ocean-related observations and services, expanding knowledge and better disaster mitigation and preparedness in the future.

Geosynchronous Satellite Launch Vehicle (GSLV):

  • The Geosynchronous Satellite Launch Vehicle (GSLV) project was initiated in 1990 with the objective of acquiring an Indian launch capability for geosynchronous satellites.
  • GSLV is a three-stage launch vehicle.
    • The first and second stages consist of solid propellant while the third stage is a cryogenic stage with propellant loading of liquid oxygen (LOX) and liquid hydrogen (LH2). 
    • During the atmospheric regime, the Satellite is protected by Ogive payload fairing. 
  • GSLV can be used to launch a variety of spacecraft capable of performing communications, navigation, and earth resource surveys.
  • The GSLV earned the moniker “naughty boy” due to encountering at least four unsuccessful launches out of its previous 15 missions.

Boost to NASA-ISRO mission:

  • The success of the GSLV-F14/INSAT-3DS mission is a big boost for ISRO ahead of the launch of the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite.
  • The NISAR will be launched by the GSLV Mark-II launch vehicle.

About Indian Space Research Organisation (ISRO):

  • Indian Space Research Organisation (ISRO) is the space agency of India. 
  • ISRO was previously the Indian National Committee for Space Research (INCOSPAR), set up by the Government of India in 1962.
  • ISRO was formed on August 15, 1969 and superseded INCOSPAR with an expanded role to harness space technology. 
  • Later the Department Of Space (DOS) was set up and ISRO was brought under DOS in 1972.
  • The prime objective of ISRO/DOS is the development and application of space technology for various national needs.

ISRO’s recent successful missions:

  • In 2023, ISRO joined the moon-landing club with Chandrayaan-3 lander-rover mission. 
  • ISRO launched Aditya-L1, its first-ever sun-studying probe. 
  • On Jan 1 of this year, ISRO launched the black-hole-studying X-ray Polarimeter Satellite XPOSAT
  • Next major launches: Gaganyan and NISAR.

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