PSLV-C43 Successfully Launches Earth Observation Satellite HysIS and 30 Foreign Satellites (Download PDF)


Indian Space Research Organisation (ISRO) has successfully launched country’s 1st advance earth observation satellite Hyper Spectral Imaging Satellite (HysIS) along w/30 other satellites from 8 countries.

Image of Sriharikota map

Image of Sriharikota Map

Image of Sriharikota map

 Image of PSLV - C43

Image of PSLV - C43

Image of PSLV - C43

These satellites were launched on board of ISRO’s workhorse PSLV-C43 from Satish Dhawan Space Centre (SDSC) at Sriharikota in Andhra Pradesh.

About Mission

  • PSLV-C43 was 45th flight of Polar Satellite Launch Vehicle (PSLV) w/combined payload of 641.5kg.

  • It was ‘Core Alone’ version of PSLV i. e. lightest version of launch vehicle.

  • PSLV is 4 stage launch vehicle w/alternating solid & liquid stages:

    • Large solid rocket motor forming 1st stage

    • Earth storable liquid stage as 2nd stage

    • High performance solid rocket motor as 3rd stage

    • Liquid stage w/engines as 4th stage.

  • HysIS weighing around 380 kg was primary payload of this PSLV-C43 mission.

  • Co-passengers of HysIS include 1 micro & 29 nano satellites from 8 diff. countries including one each from Australia, Canada, Columbia, Finland, Malaysia, Netherlands, Spain & 23 from US.

  • All these satellites were commercially contracted for launch thru ISRO’s commercial arm Antrix Corporation Limited.

  • All these satellites were placed in 504 km orbit.

  • Satellites were ejected in 2 orbits by restarting rocket’s 4th-stage engine twice.

  • PSLV 1st had released HysIS into orbit at 636 km 17 minutes after launch.

  • Later engine of rocket’s 4th stage were restarted to place remaining satellites into desired orbits.

IImage of The main payload HysIS

IImage of The Main Payload HysIS

IImage of The main payload HysIS

Hyper Spectral Imaging Satellite (HysIS)

  • It is India’s 1st hyperspectral imaging satellite for advanced earth observation developed indigenously by ISRO.

  • Very few space agencies have such satellite (so India is not 1st to launch it).

  • It was placed in 636 km-polar sun synchronous orbit w/inclination of 97.9570.

  • It has mission life is 5 years.

  • Its primary goal is to study earth’s surface in visible near infrared & shortwave infrared regions of electromagnetic spectrum w/i a bandwidth of 400nm-2500nm wavelength (This includes visible, near infrared & far infrared bands of spectrum).

  • Optical imaging detector chip is heart of this satellite which is indigenously designed by Space Application Centre of ISRO & fabricated at its semi-conductor lab at Chandigarh.

Image of Hyper Spectral Imaging Satellite (HysIS)

Image of Hyper Spectral Imaging Satellite (HysIS)

Image of Hyper Spectral Imaging Satellite (HysIS)

Applications of HysIS

  • Hyperspectral imaging satellite technology will be added advantage in watching over India from space across sectors including defence, agriculture, land use & mineral exploration.

  • It will be primarily used in Agriculture, Forestry, Soil Survey, Geology, Coastal Zone Studies, Inland water Studies, Environmental monitoring, Pollution Detection from Industries.

Hyperspectral Imaging

  • Hyperspectral imaging or hyspex imaging (imaging spectroscopy) combines power of digital imaging & spectroscopy.

  • It collects & 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.

  • Hyspex technology is still evolving science. It has ability to add new dimension to plain-vanilla optical imagers.

- Published/Last Modified on: January 9, 2019

Science/Technology, Space/ISRO

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