ISRO launches PSLV C-53 From Sriharikota

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June 30, 2022. The Indian Space Research Organisation (Isro) on Thursday successfully launched Polar Satellite Launch Vehicle-C53, which placed three satellites in orbit. The launch is scheduled at 18:00 hours IST from the Second Launch Pad at Satish Dhawan Space Centre, Sriharikota.

About ISRO

Chairman :- S Somanath (Established in 1969)

PSLV-C53 is the second dedicated commercial mission of NewSpace India Limited (NSIL). It is designed to orbit DS-EO satellite along with two other co-passenger satellites from Singapore. This is the 55th mission of PSLV and 15th mission using PSLV-Core Alone variant. It is the 16th PSLV launch from the second launch pad.

The mission proposes to demonstrate the utilization of the spent upper stage of the launch vehicle as a stabilized platform for scientific payloads subsequent to the separation of the satellites.

A four stage, 44.4 m tall PSLV-C53 has a lift-off mass of 228.433 t. It would inject DS-EO satellite into an orbit with semi-major axis of 6948.137 + 20 km, at an altitude of 570 km measured from the equator, with a low inclination of 10 deg. + 0.20.  PSLV-C53 carries three satellites. DS-EO, a 365 kg and NeuSAR, a 155 kg satellite both belonging to Singapore. Third satellite is a 2.8 kg Scoob-1 of Nanyang Technological University (NTU), Singapore.

The PSLV rocket platform is India’s workhorse, with an ability to send relatively lighter satellites to polar orbits — these spacecrafts are on a north-south orbit around the planet, as opposed to a genosynchronous orbit for which Isro uses the heavier GSLV rocket.

Scientists said that after around 18 minutes of the lift-off, the rocket injected the three Singapore satellites into their respective orbits.

Isro chairperson S Somnath also confirmed the launch, and congratulated NSIL for achieving another milestone.

“The rocket placed the three customer satellites in the precise orbit of 570km with a 10-degree inclination. I congratulate NSIL for accomplishing yet another major mission this month itself, the earlier one being the GSAT launch last week. With today’s mission, all these three satellites are placed in the right orbit,” Somnath said after the launch.