ISRO launches HysIS and 30 small satellites | Daily Current Affairs 2021

ISRO launches HysIS and 30 small satellites

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Indian Space Research Organisation’s (Isro’s) has launched Polar Satellite Launch Vehicle (PSLV-C43) carrying India’s earth observation satellite Hyper Spectral Imaging Satellite (HysIS) and 30 small satellites from eight countries took off successfully from the launchpad at Sriharikota at the scheduled time.

According to sources, the information coming in from sources suggests that the success of the launch is certain, with the main satellite already separated from the rocket. The other satellites are scheduled to be separated from 11:30 am onwards. The rocket is carrying the 380 kg HysIS satellite and 30 overseas satellites together weighing 261.5 kg. International co-passenger satellites from Australia, Columbia, Malaysia and Spain are being flown for the first time in PSLV. The rocket blasted off from the first launch pad of Isro’s spaceport Satish Dhawan Space Centre SDSC SHAR, Sriharikota at 09:58 hours. The countdown for the launch of PSLV-C43/HysIS mission started on Wednesday at 05:58 hours IST from Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota.

PSLV is a four-stage vehicle with alternating solid and liquid stages. The first stage comprises the massive rocket motor carrying 139 tonnes of solid propellant. The second stage carries 42 tonnes of Earth storable liquid propellant. The entire mission will be completed in just over 112 minutes after the rocket’s lift-off. Just over 17 minutes into the flight, the PSLV rocket has placed the HysIS satellite with a mission lifespan of five years in 636 km polar sun-synchronous orbit. After that, the rocket will be brought to a lower altitude to about 503 km from 642 km, said the space agency.

HysIS mission will study the earth’s surface in visible, near infrared and shortwave infrared regions of the electromagnetic spectrum. The co-passengers of HysIS include 1 micro and 29 nanosatellites from eight different countries. All these satellites will be placed in a 504 km orbit. These satellites have been commercially contracted for launch through Antrix Corporation Limited, the commercial arm of ISRO.

The PSLV has emerged as a workhorse by successfully launching satellites into a variety of orbits. In a span of 25 years, it has launched 53 Indian and 239 international customer satellites from 28 countries. Through its various accomplishments, PSLV has established itself in the international commercial launch market as one of the most cost-effective launch vehicles for primary, as well as, co-passenger satellites.

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