What is the main task of India’s third moon mission which could not be achieved in its earlier mission? List the countries that have achieved this task. Introduce the subsystems in the spacecraft launched and explain the role of the ‘Virtual Launch Control Centre’ at the Vikram Sarabhai Space Centre which contributed to the successful launch from Sriharikota.
Introduction
Chandrayaan-3's primary objective was to achieve a safe and soft landing on the lunar surface, specifically near the Moon's South Pole. This crucial task, which its predecessor Chandrayaan-2's Vikram lander could not accomplish due to a last-minute communication loss and hard landing, was essential for India to demonstrate advanced lunar exploration capabilities and deploy a rover for in-situ chemical analysis.
Body
Lunar Soft Landing Achievers
- United States of America
- Russia (then Union of Soviet Socialist Republics)
- China
Chandrayaan-3 Spacecraft Subsystems
- Propulsion Module: Carried the Lander and Rover configuration from Earth orbit to a 100 km lunar orbit, providing necessary thrust and navigation.
- Lander Module (Vikram): Designed for the autonomous soft landing on the lunar surface, executing precise descent maneuvers.
- Rover (Pragyan): A six-wheeled robotic vehicle deployed from the Lander to explore the lunar surface, collect data, and conduct in-situ scientific experiments.
Role of Virtual Launch Control Centre (VLCC)
The Virtual Launch Control Centre (VLCC) at Vikram Sarabhai Space Centre played a pivotal role in the successful launch from Sriharikota. It enabled remote monitoring and real-time data analysis from various launch systems and sensors. The VLCC facilitated collaborative decision-making among multiple expert teams situated across different geographical locations, ensuring seamless communication and coordination during critical launch phases. This enhanced reliability, safety, and operational efficiency, contributing significantly to the mission's initial success.
Conclusion
Chandrayaan-3's triumph in achieving a soft lunar landing and deploying a rover marked a historic milestone for India, solidifying its position among elite spacefaring nations and paving the way for future lunar and planetary explorations.
254 words · target ~250
The directive 'explain' requires providing detailed information, reasons, and clarification for each component of the question.
Suggested structure
Introduction: Main task of Chandrayaan-3 and its link to Chandrayaan-2's failure
Countries that achieved lunar soft landing
Subsystems of Chandrayaan-3 spacecraft and their roles
Role of the 'Virtual Launch Control Centre' (VLCC)
Conclusion
Key points
Main task of Chandrayaan-3 was to achieve a safe and soft landing on the lunar surface (specifically near the South Pole) and deploy a rover for in-situ chemical analysis, which Chandrayaan-2's Vikram lander failed to do.
Countries that achieved soft landing on the Moon: USA, Russia (then USSR), China.
Chandrayaan-3 spacecraft subsystems: Propulsion Module (carried Lander and Rover to lunar orbit), Lander Module (Vikram - responsible for soft landing), Rover (Pragyan - explored lunar surface and conducted experiments).
Virtual Launch Control Centre (VLCC) at VSSC enabled remote monitoring, real-time data analysis, collaborative decision-making by multiple teams across different locations, ensuring successful launch from Sriharikota.
VLCC facilitated efficient communication and coordination among various experts and systems during critical launch phases, enhancing reliability and safety.
Common mistakes
Not clearly stating the specific failure of Chandrayaan-2 (i.e., the soft landing attempt).
Omitting one of the countries that achieved lunar soft landing.
Providing only a superficial description of the spacecraft subsystems without detailing their specific roles.
Failing to adequately explain the 'virtual' aspect and the comprehensive 'role' of the VLCC in a launch scenario.
Difficulty: Medium — The question requires specific factual recall about a recent, high-profile scientific mission (Chandrayaan-3), including its objective, historical context (Chandrayaan-2 failure), international achievements, technical components (subsystems), and operational aspects (VLCC). Explaining these diverse elements concisely for a 15-mark question demands both knowledge and structured presentation.