India plans to launch on March 28 an earth observation satellite that will provide it near real-time images of its borders and also enable quick monitoring of natural disasters.

GISAT-1 is slated to be lofted into space by GSLV-F10 rocket from Sriharikota spaceport in Andhra Pradesh’s Nellore district, about 100 kms north of Chennai.

“We are looking to launch this Geo imaging satellite on March 28, subject to weather conditions”, an official of the Bengaluru-headquartered Indian Space Research Organisation (ISRO) told PTI on Sunday.

The rocket will place the spacecraft in a geosynchronous orbit. It will be subsequently positioned in geostationary orbit, about 36,000 kms above earth’s equator, using its onboard propulsion system.

The launch of GISAT-1 onboard GSLV-F10 rocket was originally planned for March 5 last year but postponed a day before the blast-off due to technical reasons.

Experts said positioning the state-of-the-art agile earth observation satellite in geostationary orbit has key advantages.

“It’s going to be a game-changer in some sense for India”, a Department of Space official said.

“With onboard high resolution cameras, the satellite will allow the country to monitor the Indian land mass and the oceans, particularly its borders continuously”.

Listing the objectives of the mission, ISRO has earlier said the satellite would provide near real-time imaging of the large area region of interest at frequent intervals.

It would help in quick monitoring of natural disasters, episodic and any short-term events.

The third objective is to obtain spectral signatures of agriculture, forestry, mineralogy, disaster warning, cloud properties, snow and glacier and oceanography.

GISAT-1 will facilitate near real-time observation of the Indian sub-continent, under cloud-free condition, at frequent intervals, ISRO said.

The planned launch of GISAT-1, weighing about 2,268 kg, comes close on the heels of the successful February 28 PSLV- C51 mission that orbited Brazil’s earth observation satellite Amazonia-1 and 18 co-passengers, including five built by students.

Secretary in the Department of Space and ISRO Chairman K Sivan told PTI last week that the technical issues that led to postponement of GISAT-1 mission have been resolved and the further delay in the launch was due to COVID-19-induced lockdown which affected normal work.

According to sources, GISAT-1 will be followed by the maiden flight of Small Satellite Launch Vehicle, ISRO’s compact launcher, likely in April.

SSLV has been designed to meet “launch on demand” requirements in a cost-effective manner for small satellites in a dedicated and ride-share mode.

It is a three-stage all solid vehicle with a capability to launch up to 500 kg satellite mass into 500 km low earth orbit (LEO) and 300 kg into Sun Synchronous Orbit (SSO).

By comparison, PSLV — the workhorse launch vehicle of ISRO — can take up to 1,750 kg payload into SSO of 600 km altitude.

With lower per kg launch cost, the mini launcher will have multiple satellite mounting options for nano, micro and small satellites.

Sivan had earlier termed the SSLV an innovative vehicle which can be assembled in just 72 hours.

“Instead of 60 days (for building a PSLV), it (SSLV) will be assembled in three days; instead of 600 people (needed to build a PSLV), it (SSLV) will be done by six people”, he had said.

You have reached your limit for free articles this month.

Already have an account ? Sign in

Start your 14 days free trial. Sign Up

Find mobile-friendly version of articles from the day's newspaper in one easy-to-read list.

Enjoy reading as many articles as you wish without any limitations.

A select list of articles that match your interests and tastes.

Move smoothly between articles as our pages load instantly.

A one-stop-shop for seeing the latest updates, and managing your preferences.

We brief you on the latest and most important developments, three times a day.

*Our Digital Subscription plans do not currently include the e-paper, crossword and print.

Dear reader,

We have been keeping you up-to-date with information on the developments in India and the world that have a bearing on our health and wellbeing, our lives and livelihoods, during these difficult times. To enable wide dissemination of news that is in public interest, we have increased the number of articles that can be read free, and extended free trial periods. However, we have a request for those who can afford to subscribe: please do. As we fight disinformation and misinformation, and keep apace with the happenings, we need to commit greater resources to news gathering operations. We promise to deliver quality journalism that stays away from vested interest and political propaganda.

Dear subscriber,

Thank you!

Your support for our journalism is invaluable. It’s a support for truth and fairness in journalism. It has helped us keep apace with events and happenings.

The Hindu has always stood for journalism that is in the public interest. At this difficult time, it becomes even more important that we have access to information that has a bearing on our health and well-being, our lives, and livelihoods. As a subscriber, you are not only a beneficiary of our work but also its enabler.

We also reiterate here the promise that our team of reporters, copy editors, fact-checkers, designers, and photographers will deliver quality journalism that stays away from vested interest and political propaganda.

Suresh Nambath

Please enter a valid email address.

Subscribe to The Hindu now and get unlimited access.

Already have an account? Sign In

Start your 14 days free trial Sign Up

You can support quality journalism by turning off ad blocker or purchase a subscription for unlimited access to The Hindu.

Sign up for a 30 day free trial.