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Jan 17: India's "high power" communication satellite GSAT-30 was successfully launched in the early hours of January 17, the Indian Space Research Organisation (ISRO) said.

The satellite, aimed at providing high-quality television, telecommunications and broadcasting services, was launched onboard Ariane 5 rocket from French Guiana.

Blasting off from the Ariane Launch Complex in Kourou, a French territory located in northeastern coast of South America at 2.35 am IST, European space consortium Arianespace's Ariane 5 vehicle injected GSAT-30 into the orbit in a flawless flight lasting about 38 minutes.

Arianespace CEO Stéphane Israël tweeted about the successful launch of GSAT-30.

ISRO's U R Rao Satellite Centre Director P Kunhikrishnan, who was present in Kourou, congratulated the ISRO community and Arianespace team on the successful launch.

Calling it an "excellent start" to 2020 for ISRO with the launch, he said, "The mission team at the master control facility have already acquired the satellite and they will immediately complete the post launch operations...."

The 3,357-kg satellite, which was deployed from the lower passenger position of Ariane-5 launch vehicle (VA 251) into to geostationary transfer orbit (GTO), is configured on ISRO's enhanced I-3K Bus structure to provide communication services from Geostationary orbit in C and Ku bands.

The satellite derives its heritage from ISRO's earlier INSAT/GSAT satellite series, and is equipped with 12 C and 12 Ku band transponders.

GSAT-30 is to serve as replacement to the "aging" INSAT-4A spacecraft services with enhanced coverage, ISRO has said, adding the satellite provides Indian mainland and islands coverage in Ku-band and extended coverage in C-band covering Gulf countries, a large number of Asian countries and Australia.

With a mission life of 15 years, GSAT-30 is an operational communication satellite for DTH, television uplink and VSAT services.

The Bengaluru-headquartered ISRO has said the communication payload of GSAT-30 is specifically designed and optimised to maximise the number of transponders on the spacecraft bus.

According to the space agency, the spacecraft would be extensively used for supporting VSAT (Very Small Aperture Terminal) network, television uplinking and teleport services, digital satellite news gathering (DSNG), DTH television services, cellular backhaul connectivity and many such applications.

One Ku-band beacon downlink signal is transmitted for ground-tracking purpose, it added.

For its initial flight of 2020, Arianespace on its website said, it would orbit EUTELSAT KONNECT, a telecommunication satellite for the operator Eutelsat, along with GSAT-30, using an Ariane 5 launch vehicle from the Guiana Space Centre.

EUTELSAT KONNECT – which was produced by Thales Alenia Space for Eutelsat – was riding in the upper position of Ariane 5's payload arrangement, and was released first in the flight sequence at 27 minutes following liftoff.

Since the launch of India's APPLE experimental satellite on Ariane Flight L03 in 1981, Arianespace has orbited 24 satellites, including GSAT-30, for the Indian space agency.

Washington, Jul 1: The United States has approved four coronavirus vaccine candidates for clinical trials, Food and Drug Administration (FDA) head Stephen Hahn told reporters.

"Four vaccines have been approved for moving into clinical trials... and another six are in the pipeline for us to review," Hahn said during a press briefing on Tuesday.

The US Administration launched in May Operation Warp Speed, a joint project of Health and Defense Departments, which aims to deliver 300 million doses of a vaccine for COVID-19 by January 2021.

The country's top pandemics expert Anthony Fauci warned on Tuesday, however, that there is no certainty the United States will be able to develop a vaccine against COVID-19 that works and will be safe.

Data on vaccine effectiveness, he added, may be available in the winter or early next year.

Domestic flights resumed operations on a truncated schedule on Monday with the first aircraft departing from the Delhi Airport for Pune, more than two months after a nationwide lockdown was announced to combat COVID-19.

The first flight to take off was an IndiGo aircraft to Pune, flying passengers stranded in the national capital since the lockdown was announced on March 24.

Passengers were screened at the airport with electronic thermometers, and revised protocol for air travel that included santisation of luggage through ultra-violent scanners, and maintaining physical distancing.

Only asymptomatic passengers were allowed to enter the airport.

Passengers were also seen wearing face masks and face shields given to them at the embarkation point by the airline to minimise the chances of infection while onboard.

The first flight arrived at Delhi Airport from Ahmedabad – a SpiceJet aircraft – at around 8:00 am.

BJD Lok Sabha member Anubhav Mohanty was among those who took the Air Vistara flight to Bhubaneshwar that departed Delhi airport at 6:50 am.

The first flight to take off from Mumbai was an IndiGo aircraft that departed for Patna at 6:45 am, while passengers from Lucknow were the first to reach the financial capital on an IndiGo aircraft that touched down at 8:20 am.

The food & beverage and retail outlets, which were closed for the past 63 days, opened at Terminal 3 of Delhi’s Indira Gandhi International (IGI) Airport.

The flight services resumed after a day of long and hard negotiations between the Centre and the states on Sunday.

All states finally agreed to accept at least some flights but announced different quarantine and self-isolation rules for arriving passengers to address apprehension about infections being brought in from other cities.

The Centre had issued guidelines for all modes of domestic travel that advised all asymptomatic passengers to self-monitor their health parameters for 14 days on completion of the journey and report to health authorities if they displayed any symptoms for COVID-19.

However, the Centre had allowed state governments to prescribe their own health protocols for disembarking passengers which led to differential guidelines across the country.