PSLV C-51 Launched by NSIL

PSLV-C51 was successfully launched by ISRO recently.

This was the 53rd flight of ISRO’s launch vehicle and the first dedicated mission of its commercial arm, NewSpace India Ltd.
The mission was undertaken under a commercial arrangement with Spaceflight Inc., U.S.

Satellites onboard:

It carried 19 satellites (Including Brazil’s optical earth observation satellite, Amazonia-1, and 18 co-passenger satellites — five from India and 13 from the U.S.).

Amazonia-1 is the first fully Brazilian-made satellite, which would help to monitor the Amazon forests.
The Amazonia-1 was injected into its precise orbit of 758 km in a sun-synchronous polar orbit.

The satellites from India are:

The Satish Dhawan SAT (SDSAT) built by Space Kidz India. It has an engraving of Prime Minister Narendra Modi on the top panel.
A nano-satellite intended to study the radiation levels, space weather and demonstrate long-range communication technologies.
The UNITYsat, a combination of three satellites for providing radio relay services.
The Bhagavad Gita was also sent on board an SD card to give the scripture, which teaches oneness as the highest form of humanity, the highest honour.

What is PSLV?

Polar Satellite Launch Vehicle is an indigenously-developed expendable launch system of the ISRO.
It comes in the category of medium-lift launchers with a reach up to various orbits, including the Geo Synchronous Transfer Orbit, Lower Earth Orbit, and Polar Sun Synchronous Orbit.
All the operations of PSLV are controlled from the Satish Dhawan Space Center, Sriharikota.

Difference between PSLV and GSLV:

India has two operational launchers- Polar Satellite Launch Vehicle (PSLV) and Geosynchronous Satellite Launch Vehicle (GSLV).
PSLV was developed to launch low-Earth Orbit satellites into polar and sun synchronous orbits.
It has since proved its versatility by launching geosynchronous, lunar and interplanetary spacecraft successfully.
On the other hand, GSLV was developed to launch the heavier INSAT class of geosynchronous satellites into orbit.
In its third and final stage, GSLV uses the indigenously developed cryogenic upper stage.

Source: TH

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