Liftoff for India's Heaviest Rocket
On June 5, 2017, the Indian Space Research Organisation (ISRO) launched its first Geosynchronous Satellite Launch Vehicle Mark III rocket from India's Satish Dhawan Space Centre Sriharikota. It marked India's heaviest and most powerful launch to date.
A Successful Launch Debut
ISRO used the GSLV Mark III rocket to launch the massive GSAT-19 satellite into orbit. Liftoff occurred at 7:28 a.m. EDT on June 5, but at the launch site the local time was 5:28 p.m. in the afternoon.
Waiting for Liftoff
India's GSLV Mark III rocket stands 141 feet tall (43 meters) and weighs 705 tons (640 metric tons) when fully loaded. Here it is seen at ISRO's "Second Launchpad" at the Satish Dhawan Space Centre in a stunning twilight view.
At the Pad
While the GLSV Mark III rocket is India's heaviest and most powerful rocket, it is not the tallest. Its predecessor, the GSLV Mark II, stands 160 feet (49 meters) tall – that's nearly 20 feet taller. This front view of the GLSV Mark III shows its squat appearance. Some Indian press reports nicknamed the rocket "Fatboy."
Helping the GSLV Mark III launch into space are two solid rocket boosters on each side of its liquid-fueled core stage. A liquid-fueled upper stage (darker segment beneath the nose cone) then boosts a satellite into orbit.
To the Launchpad
The GSLV Mark III rocket is moved out Second Launch Pad at ISRO's Satish Dhawan Space Centre.
Like many launch providers and agencies, ISRO pieces its rockets together vertically in a Vehicle Assembly Building. After assembly, the GSLV Mark III rocket is moved out to the launch pad using a mobile transporter system.
Satellite, Meet Rocket
Every rocket needs a payload and here ISRO engineers are attaching the payload fairing (or nose cone) containing the GSAT-19 communications satellite to the GSLV Mark III rocket.
A New Stage of Flight
In 2014, ISRO launched an experimental version of a GLSV Mark III rocket that was never intended to reach space. It launched a suborbital flight because its upper stage was a mockup, not a real stage. Here, an actual upper stage booster is attached to the first orbital GSLV Mark III rocket.
Adding the Upper Stage
Here ISRO engineers hoist the GLSV Mark III rocket's upper stage into assembly position inside the agency's Vehicle Assembly Building at the Satish Dhawan Space Centre. The upper stage is about 44 feet (13.5 meters) tall and 13 feet (4 m) wide.
Upper Stage Prep
ISRO engineers prepare the upper stage of the GSLV Mark III rocket for launch. When fully fueled, the stage carries 28 metric tons of cryogenic liquid oxygen and liquid hydrogen propellant.
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