Chandrayan-3.pptx

14,480 views 13 slides Jul 26, 2023
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Slide Content

C handrayan - 3 Presented By ~ Sanya Kumari

objective ~ Chandrayaan-3 mission  consists of the main objectives of exhibiting end-to-end capability in safe landing and roving on the lunar surface . The successful soft landing of this mission will make India the fourth nation to have done it after the United States, the former Soviet Union and China.

BACKGROUND ~ As part of the Chandrayaan programme to demonstrate soft landing on the Moon, ISRO launched Chandrayaan-2 on board a Launch Vehicle Mark-3 (LVM 3) launch vehicle consisting of an orbiter, a lander and a rover. The lander was scheduled to touchdown on the lunar surface in September 2019 to deploy the Pragyan rover. The European Space Tracking (ESTRACK) operated by European Space Agency (ESA) will support the mission according to a contract. Under the new cross-support arrangement, ESA tracking support could be provided for upcoming ISRO missions such as those of India’s first human spaceflight programme, Gaganyaan , the Chandrayaan-3 lunar lander and the Aditya-L1 solar research mission. In return, future ESA missions will receive similar support from ISRO’s own tracking stations.

Design ~ Chandrayaan-3 comprises three main components: 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 in the near-infrared (NIR) wavelength range (1-1.7 μm ).

PROPULSION MODULE

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 be carrying the rover and various scientific instruments to perform in-site analysis. The lander for Chandrayaan-3 will have only four throttle-able engines, unlike Vikram on Chandrayaan-2 which had five 800 Newtons engines with a fifth one being centrally mounted with a fixed thrust.[citation needed] Additionally, the Chandrayaan-3 lander will be equipped with a Laser Doppler Velocimeter (LDV).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. The lander has 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.

LANDER

Rover: Chandrayaan-3 Rover Overview: Six-wheeled design Weight of 26 kilograms (57 pounds) Range of 500 metres (1,600 ft) 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 rover has two payloads: Alpha Particle X-Ray Spectrometer (APXS) will derive the chemical composition and infer mineralogical composition of the lunar surface. Laser Induced Breakdown Spectroscope (LIBS) will determine the elemental composition (Mg, Al, Si, K, Ca, Ti , Fe) of lunar soil and rocks around the lunar landing site. 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

ROVER

LAUNCH ~ Chandrayaan-3 was launched on 14 July 2023, at 2:35 pm IST as scheduled, from Satish Dhawan Space Centre in Sriharikota , Andhra Pradesh, India. The spacecraft has been effectively placed in the trajectory it will take to reach the moon. It is anticipated that the Chandrayaan-3 mission will achieve a soft landing on the lunar South Pole region on 23 August. Choosing the month of July for the launch of Chandrayan 3 was a special move because of a calculation made by ISRO regarding the closeness of Earth and Moon.

FUNDING ~ In December 2019, it was reported that ISRO requested the initial funding of the project, amounting to ₹75 crore (US$9.4 million), out of which ₹60 crore (US$7.5 million) will be for meeting expenditure towards machinery, equipment and other capital expenditure, while the remaining ₹15 crore (US$1.9 million) is sought under revenue expenditure head. Confirming the existence of the project, ISRO's former chairman K. Sivan stated that the estimated cost would be around ₹615 crore (equivalent to ₹721 crore or US$90 million in 2023).

Mission executive ~ Mission Director : S. Mohanakumar Associate Mission Director : G. Narayanan Vehicle Director : Biju C Thomas Associate Vehicle Director : P. K. Sudeesh Kumar Spacecraft Director : Dr. P. Veeramuthuvel

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