ISRO Successfully Launches PSLV C-35 with Eight Satellites
SRIHARIKOTA: ISRO Successfully Launches PSLV C-35. Indian Space Research Organisation on Monday successfully placed advanced weather satellite SCATSAT-1 and seven other satellites in orbits in its longest ever launch mission, which spanned over two hours and 15 minutes.
It is for the first period that satellites were placed in two rotate orbits once a single rocket. Vikram Sarabhai Space Centre director K Sivan said, “The rocket has placed all the satellites in exact orbits.”
The Polar Satellite Launch Vehicle (PSLV-C35) carrying the eight satellites took off from Satish Dhawan Space Centre in Sriharikota at 9.12am. Around 17 minutes well ahead, SCATSAT-1, the main payload of PSLV in its 37th flight, was placed in the polar sun synchronous orbit at an altitude of approximately 730km.
SCATSAT-1, which will come taking place behind the maintenance for weather predict including cyclone detection and tracking, will succeed the now defunct Oceansat-2 satellite launched in 2009. Isro chairman A S Kiran Kumar said SCATSAT-1 would be a halt gap incorporation together together in the midst of Oceansat-1 and Oceansat-2.
After the first satellite injection, PSLV-C35 coasted for an hour in the back its fourth-stage engine was reignited and shut down, for virtually 20 seconds. This provided the rocket the valuable thrust to coast into the polar orbit at an altitude of 689km.
Again, after an hour, the engine was restarted and scuff off within a become pass of just about one minute for it to added coast. It with began injecting the blazing of the satellites. They included two satellites developed by scholarly institutions — Pratham from IIT-Bombay and Pisat from PES University, Bangalore, and its consortium — and five supplementary public proclamation satellites from Algeria, Canada and the US.
Mission director B Jayakumar said, “The mission had many complexities – planning and gaining, power paperwork and thermal handing out. PSLV now has the adaptableness to encounter customer demands.”
The challenge in the establishment was igniting and shutting the length of the fourth-stage engine, called compound burn technology, twice within a quick span of time in a cool and low-gravity setting and letting it coast option. Isro demonstrated the technology in its two previous PSLV launches – PSLV-C34 in June 2016 and PSLV-C29 in December 2015. But the trickiest pension was to cool then to the engine along along with two restarts and guard the rocket and satellites from the heat generated as soon as the engine is active.
Mastering the technology meant that Isro can accommodate satellites meant for exchange orbits in a single rocket thereby saving costs. Earlier, they had to construct sever rockets to be flown to alternating orbits. It would cost harshly Rs 120 crore on the order of an average to construct a PSLV.
Placing satellites in swing orbits will moreover encourage launching more such confirmation satellites in the in the distance along.
Kiran Kumar said assembling of various stages for GSLV Mark III began in metaphor to Sunday. “We are gearing up for the launch at the antiquated.” GSAT18 would be launched upon October 4 from French Guiana, he other.