Skip to main content

GSLV-D5 launch places India in elite league

One of India’s most ambitious dreams became a reality on Sunday when its Geosynchronous Satellite Launch Vehicle (GSLV-D5), powered by an indigenous cryogenic engine, effortlessly put the 1,982-kg GSAT-14 communication satellite into a perfect orbit after 17 minutes of flight.
The cryogenic engine built by the Indian Space Research Organisation (ISRO) fired for 12 of those 17 minutes.
The precision of the cryogenic upper stage was such that it put the GSAT-14 into an orbit with a perigee of 179 km, against the target of 180 km, and the apogee achieved was off by a mere 50 km for a target of 36,000 km.
The grand success caps 20 years of hard work by ISRO’s engineers, after being denied cryogenic technology under pressure from the U.S., suffering a heartbreaking failure with an indigenous cryogenic engine flight in April 2010 and having had to scrub its second attempt with an indigenous cryogenic engine in August 2013. “I am proud to say that ISRO has done it…,” ISRO Chairman K. Radhakrishnan announced at the end of the successful mission. “This is a big day for space technology in the country. This is a big achievement for the GSLV programme.”
The mission’s success means India now has the ability to put satellites weighing more than two tonnes in orbit, joining the elite club of the U.S., Russia and France.
Labels:

Comments

Post a Comment

Popular posts from this blog

SC asks Centre to strike a balance on Rohingya issue (.hindu)

Supreme Court orally indicates that the government should not deport Rohingya “now” as the Centre prevails over it to not record any such views in its formal order, citing “international ramifications”. The Supreme Court on Friday came close to ordering the government not to deport the Rohingya. It finally settled on merely observing that a balance should be struck between humanitarian concern for the community and the country's national security and economic interests. The court was hearing a bunch of petitions, one filed by persons within the Rohingya community, against a proposed move to deport over 40,000 Rohingya refugees. A three-judge Bench, led by Chief Justice of India Dipak Misra, began by orally indicating that the government should not deport Rohingya “now”, but the government prevailed on the court to not pass any formal order, citing “international ramifications”. With this, the status quo continues even though the court gave the community liberty to approach i...
3 comments
Click Here To Read more »

"ISRO has capabilities to build geostationary satellites for air quality monitoring” (downtoearth)

Pawan Gupta's findings on trans-boundary movement of pollution (Punjab to Delhi) from biomass burning in 2015 spurred debates. He participated in discussions with Indian regulators early September at the Better Air Quality Conference in Busan on the advantages of using satellite data for air quality monitoring. He explains to Down to Earth how air quality monitoring is done using satellite data. How is satellite data used to measure air pollution? Satellites that provide information on atmospheric pollutants are normally (not always) in the low earth orbits (400-1000 km above the Earth’s surface). A single satellite can carry one or more remote sensing instruments onboard that look down to earth and obtain information about the object in the field of view of satellite sensor. The Earth receives electromagnetic radiation from the sun, which travels through space and reaches the earth-atmosphere system. The radiation then interacts with the Earth’s atmosphere and the surface...
1 comment
Click Here To Read more »

What's ailing Namami Gange programme?(DTE)

Winters are extremely hectic for Sushma Patel, a vegetable grower in Uttar Pradesh’s Chunar town. Her farm is in the fertile plains of Ganga where people grow three crops a year. But this is the only season when she can grow vegetables. And before that, she needs to manually dig out shreds of plastic and wrappers from her one-hectare (ha) farm. “This is all because of the nullah,” she says, pointing at an open drain that runs through her field, carrying sewage from the neighbourhood to the Ganga. “Every monsoon, the drain overflows and inundates the field with a thick, black sludge and plastic debris. We cannot even go near the field as the stench of sewage fills the air,” she says. But Patel has no one to complain to as this is the way of life for most people in this ancient town. About 70 per cent of the people in Chunar depend on toilets that have on-site sanitation, such as septic tanks and pits. In the absence of a proper disposal or management system, people simply dump the faec...
3 comments
Click Here To Read more »