Sci-Tech

Watch | All you need to know about ISRO's GISAT-1

A video on India's first earth imaging satellite in geostationary orbit

GISAT-1 or Geo Imaging Satellite-1 is India’s first earth imaging satellite in a geostationary orbit.

A satellite in geostationary orbit (about 36,000 km above earth) has an orbital period equal to earth’s rotational period.

Geosynchronous Satellite Launch Vehicle (GSLV-F10) will launch GISAT-1 on March 5th from Satish Dhawan Space Centre (SDSC) in Sriharikota, Andhra Pradesh. This will be the fourteenth flight of the GSLV.

The GSLV flight will have a four-metre diametre ogive-shaped payload fairing being flown for the first time. A payload fairing is a nose cone used by a spacecraft for protection against dynamic pressure and aerodynamic heating during launch.

After the launch, GISAT-1 will reach the final geostationary orbit of around 36,000 km using its onboard propulsion system.

The earth observing satellite that weighs around 2,275 kg has a lifespan of 7 years. It carries a multi- and hyper-spectral imager along with the 700 mm Ritchey-Chretien telescope for earth observation and data collection. Also it has a high resolution camera

Objectives of GISAT-1

  • Facilitates near real time observation of the Indian sub continent, under cloud free condition, at frequent intervals.
  • Helps quick monitoring of natural disasters.
  • Keep a constant watch on borders.
  • Monitor any changes in the geographical condition of the country.
  • Helps to obtain spectral signatures of agriculture, forestry, mineralogy, disaster warning, cloud properties, snow, glaciers and oceanography.

Why you should pay for quality journalism - Click to know more

Recommended for you

Printable version | Apr 8, 2020 8:10:34 AM | https://www.thehindu.com/sci-tech/gisat-1indias-first-earth-imaging-satellite-on-geostationary-orbit/article30970923.ece

Next Story