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Chandrayan - 3 Launch

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The Chandrayaan-3 Rover is a major step forward for India’s space program. It is a testament to the country’s growing technological capabilities, and it is sure to make significant contributions to ou ...
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About Event

Chandrayaan-3 (transl.?"mooncraft";[6][7] pronunciation ) is the third lunar exploration mission by the Indian Space Research Organisation (ISRO).[8] It consists of a lander and the Pragyan rover similar to Chandrayaan-2, but does not have an orbiter. Its propulsion module behaves like a communication relay satellite. The propulsion module carries the lander and rover configuration until the spacecraft is in a 100 km lunar orbit.[9][10]

Following Chandrayaan-2, where a last-minute software glitch in the soft landing guidance software led to the failure of the lander's soft landing attempt after a successful orbital insertion, another lunar mission was proposed.[11]

The launch of Chandrayaan-3 took place at July 14, 2023, at 2:35 pm IST[12] and injection of 100 km circular polar orbit is completed successfully as part of phase one.[2][13]The lander and rover is expected to land near the lunar south pole region on August 23, 2023.[14]



Chandrayaan-3 comprises three main components

Propulsion Module

Chandrayaan-3 Propulsion Module

The propulsion module will carry the lander and rover configuration till 100 km lunar orbit. It is a box-like structure with one large solar panel mounted on one side and a large cylinder on top (the Intermodular Adapter Cone) that acts as a mounting structure for the lander. In addition to the lander, the module carries a payload called Spectro-polarimetry of Habitable Planet Earth (SHAPE) to study the spectral and polarimetric measurements of Earth from the lunar orbit.[10][9]

Lander

Chandrayaan-3 Lander

The lander is responsible for the soft landing on the Moon. It is also box-shaped, with four landing legs and four landing thrusters of 800 newtons each. It will carry the rover and various scientific instruments to perform in-site analysis.

The lander for Chandrayaan-3 will have only four throttle-able engines,[21] unlike Vikram on Chandrayaan-2 which had five 800 Newtons engines with a fifth one being centrally mounted with a fixed thrust. Additionally, the Chandrayaan-3 lander will be equipped with a Laser Doppler Velocimeter (LDV).[22] The impact legs are made stronger compared to Chandrayaan-2 and increased instrumentation redundancy. ISRO is working on improving the structural rigidity and adding multiple contingency systems.[23]

The lander will carry three payloads:

  • Chandra's Surface Thermophysical Experiment (ChaSTE) will measure the thermal conductivity and temperature of the lunar surface.
  • Instrument for Lunar Seismic Activity (ILSA) will measure the seismicity around the landing site.
  • Langmuir Probe (LP) will estimate the plasma density and its variations.

Rover

Chandrayaan-3 Rover

Chandrayaan-3 Rover Overview:

  • Six-wheeled design
  • Weight of 26 kilograms (57 pounds)
  • Range of 500 meters (1,640 feet)
  • Scientific instruments including cameras, spectrometers, and a drill
  • Expected lifespan of one lunar day (14 Earth days)
  • Communication with the lander and ground control team in India

The Chandrayaan-3 Rover is expected to make a number of important scientific discoveries, including:

  • The composition of the lunar surface   
  • The presence of water ice in the lunar soil
  • The history of lunar impacts
  • The evolution of the Moon’s atmosphere

The Chandrayaan-3 Rover is a major step forward for India’s space program. It is a testament to the country’s growing technological capabilities, and it is sure to make significant contributions to our understanding of the Moon.

          Panel 1: The power of Women in the leadership roles and startup world
          Panel 1: The power of Women in the leadership roles and startup world