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ISRO successfully launches advanced earth observation satellite- HysIS

Published on December 02, 2018
Indian Space Research Organisation (ISRO) has successfully launched country's first advance earth observation satellite- "Hyper Spectral Imaging Satellite (HysIS)", along with 30 other satellites from eight countries.
ISRO successfully launches advanced earth observation satellite- HysIS
  • These satellites were launched on board of ISRO's workhorse PSLV-C43 from Satish Dhawan Space Centre (SDSC) at Sriharikota in Andhra Pradesh.

About the Mission:

  • PSLV-C43 was the 45th flight of Polar Satellite Launch Vehicle (PSLV) with a combined payload of 641.5kg.
  • It was the 'Core Alone' version of PSLV i.e. lightest version of the launch vehicle.
  • PSLV is a four stage launch vehicle with alternating solid and liquid stages.
  • HysIS, weighing around 380 kg was the primary payload of this PSLV-C43 mission.
  • The co-passengers of HysIS included 1 micro and 29 nano satellites from eight different countries including one each from Australia, Canada, Columbia, Finland, Malaysia, Netherlands, Spain and 23 from US.
  • All these satellites were commercially contracted for launch through ISRO's commercial arm Antrix Corporation Limited.
  • All these satellites were placed in a 504 km orbit.
  • The satellites were ejected in two orbits by restarting the rocket's fourth-stage engine twice.
  • PSLV had first released HysIS into orbit at 636 km, 17 minutes after launch.
  • Later,the engine of rocket's fourth stage was restarted to place the remaining satellites into desired orbits.

About the Hyper Spectral Imaging Satellite (HysIS):

  • It is India's first hyperspectral imaging satellite for advanced earth observation developed indigenously by ISRO.
  • It was placed in the 636 km-polar sun synchronous orbit with an inclination of 97.957 degree.
  • It has a mission life of five years.
  • Its primary goal is to study earth's surface in visible near infrared and shortwave infrared regions of electromagnetic spectrum within a bandwidth of 400nm-2500nm wavelength.
  • Optical imaging detector chip is the heart of this satellite which has been indigenously designed by Space Application Centre of ISRO and fabricated at its semi-conductor lab at Chandigarh.

Applications of HysIS:

  • The hyperspectral imaging satellite technology will be an added advantage in watching over India from space across sectors including defence, agriculture, land use and mineral exploration.
  • It will be primarily used in Agriculture, Forestry, Soil Survey, Geology, Coastal Zone Studies, Inland water Studies, Environmental monitoring and Pollution Detection from Industries.

What is Hyperspectral Imaging?

  • Hyperspectral imaging or hyspex imaging (imaging spectroscopy) combines the power of digital imaging and spectroscopy.
  • It collects and processes information from across electromagnetic spectrum.
  • Hyspex imaging enables distinct identification of objects, materials or processes on Earth by reading spectrum for each pixel of scene from space.
  • The hyspex technology is still an evolving science.
  • In recent times, it has become a trend that is being experimented globally.
  • It has the ability to add new dimension to plain-vanilla optical imagers.


Q. What is the name of India's first advance earth observation satellite that Indian Space Research Organisation (ISRO) has successfully launched along with 30 other satellites from eight countries?
a. Hyper Special Imaging Satellite (HysIS)
b. Super Spectral Imaging Satellite (SysIS)
c. Hyper Spectral Imaging Satellite (HysIS)
d. None of the above
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