The Indian Space Research Organisation (ISRO) plans to retain the names of the Chandrayaan-2 lander (Vikram) and rover (Pragyan) for their Chandrayaan-3 equivalents as well.
GS III: Science and Technology
Dimensions of the Article:
- Chandrayaan-3 Mission
- Objective and Composition
- Implementation Plan for the Mission
- Chandrayaan-3 is the third lunar exploration mission by ISRO.
- It aims to demonstrate capabilities in safe landing and roving on the lunar surface.
- Safe landing (through the lander Vikram – after Vikram Sarabhai, the father of the Indian space programme) and
- Roving (through the rover Pragyan) on the lunar surface.
- Unlike Chandrayaan-2, it will not have an orbiter and the propulsion module will act as a communications relay satellite.
- Includes the Spectro-polarimetry of Habitable Planet Earth (SHAPE) payload for studying Earth from lunar orbit using spectro-polarimetry.
Consists of four payloads:
- Radio Anatomy of Moon Bound Hypersensitive ionosphere and Atmosphere (RAMBHA) for studying the temporal evolution of electron density in the Lunar ionosphere.
- Chandra’s Surface Thermophysical Experiment (ChaSTE) for measuring thermal conductivity and temperature on the lunar surface.
- Instrument for Lunar Seismic Activity (ILSA) for measuring seismic activity around the landing site.
- Langmuir Probe (LP) for estimating plasma density and variations.
- Equipped with the Alpha Particle X-ray Spectrometer (APXS) and Laser Induced Breakdown Spectroscope (LIBS) payloads to analyze elemental composition near the landing site.
Launch and Rocket:
- ISRO plans to launch Chandrayaan-3 in mid-July.
- It will be launched aboard the LVM3 (formerly GSLV Mk-III) rocket from Sriharikota.
Objective and Composition:
- Objective: Chandrayaan-3 is an ambitious mission by ISRO aimed at demonstrating critical technologies required for successful spacecraft landing on the moon’s south pole.
- Composite Structure: The Chandrayaan-3 spacecraft is composed of three modules: propulsion, lander, and rover.
- Scientific Instruments: The mission carries scientific instruments to study various aspects of the lunar environment, including the thermo-physical properties of the lunar regolith (surface material), lunar seismicity, lunar surface plasma environment, and elemental composition near the landing site.
Implementation Plan for the Mission:
Propulsion Module Deployment:
- The mission will commence with the deployment of a propulsion module, which will transport the lander-rover configuration to a lunar orbit situated 100 kilometers above the lunar surface.
Lander Module Arrival:
- Following a successful journey, the dedicated lander module named ‘Vikram’ will safely reach the moon’s surface.
- Once the lander module has achieved a secure landing, it will initiate the deployment of the rover module called ‘Pragyan’ onto the lunar surface.
In-Situ Chemical Analysis:
- The rover, Pragyan, will undertake comprehensive in-situ chemical analysis of the lunar surface throughout its mobility phase.
- It will conduct detailed examinations and investigations to gather valuable data and insights.
-Source: The Hindu