The rocket carrying the Brazilian Amazonia-1 satellite weighing 637 kg as its main passenger and 18 others (13 from the US and five from India including defense satellites) as co-passengers took off from the first launch pad at the Satish Dhawan Space Center (SDSC). ) here at 10:24 a.m. Sunday.
India’s first space mission for 2021 is the longest one for a PSLV rocket and is expected to be completed in 1 hour, 55 minutes and 7 seconds.
If all goes well, India will end the mission orbiting a total of 342 foreign satellites, all for a fee.
This rocket is one of NewSpace’s fully commercialized
At 10:24 p.m., the 44.4 meter high PSLV-C51 rocket shot off the first launch pad here and slowly ascended into the sky with thick orange flames on its tail.
The rocket slowly gained speed as it ascended while emitting a rolling thunder sound.
Amazonia-1 is an optical earth observation satellite from the National Institute for Space Research (INPE).
This satellite will further strengthen the existing structure by providing remote sensing data to users for monitoring deforestation in the Amazon region and analysis of agricultural diversification across Brazil.
18 shared passenger satellites including four from IN-SPACe (three UNITYsats from a consortium of three Indian academic institutes (Jeppiaar Institute of Technology, Sriperumbudur, GHRaisoni College of Engineering, Nagpur and Sri Shakthi Institute of Engineering and Technology, Coimbatore), one Satish Dhawan Sat from Space Kidz India) with the engraved images of Prime Minister Narendra Modi and the Bhagavad Gita in an instant.
The remaining 14 satellites are Sindhu Netra, India’s technology demonstration satellite
For the third time ISRO is using the DL variant of the PSLV rocket which will have two strap-on boost motors.
In normal configuration, the PSLV is a four-stage / engine expendable rocket powered by solid and liquid fuels as alternatives. Six thrust motors will also be tied to the first stage to provide higher thrust during the initial flight moment.
But the 44.4 meter high PSLV rocket that flew on Sunday is the DL variant that only has two rope-reinforcing motors. This variant was first used to put the Microsat R satellite into orbit on January 24, 2019.
The Indian space agency has a PSLV variant with two and four strap-on motors, a larger PSLV-XL and a Core Alone variant without a strap-on motor.
The choice of rocket to be used for a mission depends on the weight of the satellite and the orbit in which it is to be orbited.
However, the PSLV-C51 mission is one of its longest.
As per its flight plan, the rocket will place 19 satellites into Sun Synchronous Orbit for a duration of 1 hour, 55 minutes and 7 seconds.
During its flight, the rocket’s fourth-stage engine will be shut off and restarted several times, the first of which will take place 16 minutes after flight.
Seventeen minutes into its flight, the rocket will launch to the Brazilian satellite Amazonia-1.
More than an hour after flight, the rocket engine will restart for about nine seconds before turning off again.
After 1 hour, 49 minutes and 52 seconds, the rocket engine will restart for eight seconds after which 18 piggy back satellites will be placed in orbit.
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