Chandrayaan-3 is it different from Chandrayaan-2?
→ Isro modified the lander in a number of ways since its aborted landing attempt in September 2019.
→ In order to endure landing at faster speeds this time around, Vikram will have stronger legs than in its previous incarnation.
→ Isro has also made various additional adjustments in response to Chandrayaan-2's shortcomings.
→ The velocity tolerance level has been raised, new velocity sensors have been added, and the solar panels have also undergone adjustments.
→ In addition, Isro removed the center or fifth engine that was hurriedly inserted during Chandrayaan-2, improving the software to be more resilient to faults such as engine disruptions, thrust disruptions, sensor failures, etc.
- More fuel & new Sensor
- Central engine & Software
- Solar Panels & Antennas
- Learning from past mistakes
- The Process
(1). More Fuel & New Sensor
→ Vikram has also undergone changes, including the addition of more fuel, which will allow him to handle more disturbances and have the "ability to come back" and provide more cushion for the mission.
(2). Central engine & Software
→ In addition, Isro removed the center or fifth engine that was hurriedly inserted during Chandrayaan-2, improving the software to be more resilient to faults such as engine disruptions, thrust disruptions, sensor failures, etc.
(3). Solar Panels & Antennas
→ The space agency has increased the size of its solar panels and their surface area.
→ Even if Vikram landed in a different direction and is not facing the Sun, it will still be able to produce electricity.
→ For redundancy, it also contains additional TTC (tracking, telemetry, and command) antennae.
(4). Learning from past mistakes
→ Before, the Chairman of ISRO (Indian Space Research Organisation), S. Somanath, said that Chandrayaan-3 will be positioned at a distance of 36,500 kilometers from Earth.
→ In comparison, Chandrayaan-2 was positioned at a distance of 45,475 kilometers from Earth.
→ Around 170 kilometers away from Earth, or nearly the same as last time, will be the perigee.
→ He declared, "This is being done to get more stability."
→ With the cryogenic upper stage, Isro used the "burn to depletion" strategy in Chandrayaan-2 to reach a high altitude.
→ This time, Isro has chosen to use a fixed orbit (36,500km), which will improve initial tracking and subsequent operations.
(5). The Process
→ Chandrayaan-3 will subsequently undergo a number of Earth-bound maneuvers to raise its orbit before receiving commands for trans-lunar insertion (TLI), which will begin the spacecraft's trip toward the Moon.
→ TLI will be completed on July 31 if all goes as planned.
→ The lunar orbit insertion of Chandrayaan-3 is anticipated to occur around August 5 after it has traveled toward the Moon for approximately five and a half days.
→ These are notional performance estimates.
→ The lander module (Vikram & Pragyan) will separate from the propulsion module once Chandrayaan-3 reaches a 100km X 100km orbit, and it will then be taken to a 100km X 30km orbit from which commands for deboost and final descent are anticipated for August 23.
→ After a successful landing, Pragyan will descend from Vikram, which will be visible to the lander's cameras, and start to roll on the lunar surface.
→ Additionally, Pragyan has cameras for avoiding obstacles.
→ A different experimental equipment will analyze the spectro-polarimetric signals of the Earth from the lunar orbit, which would fit in the topic of "Science from the Moon!" While the range of the scientific instruments on the lander and the rover would fit in the theme of "Science of the Moon,"
Also, Read our below Category 👇👇👇:
Join us for Regular Update:
👉 Whatsapp Group 👉 Whatsapp Channel
👉 Telegram 👉 Linkedin
👉 Telegram
Post a Comment