A Full-proof Space Mission!
ISRO's Chandrayaan 3 mission showcases enhanced confidence in lunar surface
landing, backed by substantial technological upgrades, a robust design, and
rigorous stress testing. This ensures the safe touchdown of "Vikram
Lander" even in worst-case scenarios.
The Vikram Lander is engineered with precision within "six sigma" limits, along with an innovative "salvage mode" to guarantee a historical landing.
Thorough stress examination and the presence of two onboard computers contribute to a 99.9% assurance of the forthcoming moon touchdown.
Detailed specifications of the lander and a focus on native technology highlight India's strides in space exploration technology.
ISRO stands at the threshold of yet another milestone with Chandrayaan 3's Vikram lander. The mission introduces a novel "salvage mode," equipping it to ensure a safe landing "even in challenging scenarios." Key elements that bolster confidence in the mission's successful touchdown.
Learning
from your failure
Following the unsuccessful soft landing of Chandrayaan 2 due to algorithm and
control issues, substantial enhancements have been implemented to ensure the
success of Chandrayaan-3. Aerospace Scientist Professor Radhakant Padhi from
IISc Bengaluru emphasized the enhanced robustness of Vikram Lander's legs.
ISRO Chairman S Somanath has announced that India's third lunar mission Vikram Lander is capable of achieving a gentle lunar surface landing on August
23, even in the absence of sensor functionality and two of its engines.
The statement came during a tail on “Chandrayaan-3: Bharat’s Pride Space Mission”,
which was hosted by the non-profit organization “Disha Bharat”.
The statement quoted by PTI:
“If everything fails, if all the sensors fail, nothing works, still it (Vikram)
will make a landing. That’s how it has been designed—provided that the
propulsion system works well”
That's an assertive and confident statement, without a doubt! Additionally, the
propulsion module of Chandrayaan 3 has managed to conserve over 150 kilograms
of fuel, surpassing initial estimates. This efficiency boost could extend the
module's operational lifespan from months to years. Another remarkable
accomplishment, underscoring ISRO's meticulous planning and strategic
decisions.
The Approach of "Six Sigma" Design: Chandrayaan 3's construction
adheres to the principles of the "six sigma" philosophy, leading to a
more robust framework. The focus on creating a lander with the ability to
withstand the most challenging situations marks a significant shift from the previous
mission.
Vikram Lander Payload: Chandrayaan 3's mission objectives encompass a secure
and gentle lunar touchdown, rover exploration, and the execution of scientific
investigations. Within the lander, payloads like Laser & RF-based
Altimeters, Laser Doppler Velocimeter, and Lander Hazard Detection &
Avoidance Cameras contribute to improved guidance and stability. Furthermore,
the Vikram Lander boasts comprehensive features such as a power generation
capacity of 738W, a bi-propellant propulsion system, and an array of sensors
and actuators designed to manage every stage of the landing process.
Thorough Stress Testing: Professor Padhi indicated that Chandrayaan 3 has
undergone extensive stress trials, with ISRO addressing all anticipated
uncertainties. These preparations encompass recreating lunar conditions and
integrating hazard detection systems to optimize landing sites.
Redundant On-board Computers: Differing from Chandrayaan-2, the Vikram lander
within Chandrayaan 3 is outfitted with two onboard computers, boosting
dependability and performance. This design alteration underscores a 99.9% level
of confidence in Vikram Lander's operational efficacy.
Former ISRO Director K Sivan emphasized that every aspect of Chandrayaan-3 is
domestically sourced. Lessons from previous mission data have prompted
corrective actions and technological advancements.
A New Era of ISRO
Through its fresh design approach, cutting-edge technologies, and meticulous
evaluations, Chandrayaan-3 by ISRO serves as evidence of India's technological
advancement. The nation anticipates a momentous occasion as the lander is
poised to make contact with the Moon's South Polar area, representing a notable
achievement in space exploration.
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