Chandrayaan 3 landing updates: India is the first nation to land close to the lunar south pole during the Chandrayaan-3 mission

Chandrayaan 3 landing updates:

As the first mission to set foot on the lunar south pole, the ISRO mission may go down in history. If everything goes according to plan, India may become only the fourth nation to make a gentle lunar landing.

Live updates on the Chandrayaan 3 Moon landing: The Chandrayaan 3 mission of the Indian Space Research Organisation (ISRO) has safely landed after a 40-day voyage that began at the Sathish Dhawan Space Center in Sriharikota. On August 23, at 6:04 PM IST, the Vikram lander should have achieved a smooth lunar landing.

Chandrayaan 3 landing updates: India is the first nation to land close to the lunar south pole during the Chandrayaan-3 mission

At 5.44 PM IST, ISRO initiated the automated landing sequence. Currently, the Vikram lander is making an attempt to land softly on the Moon by using its internal processors and logic. The onboard systems of the lander will be conducting all the work, while mission controllers at ISTRAC will be attentively watching it.

2019’s Chandrayaan-2 mission, which is followed by the Chandrayaan 3 mission, saw the Vikram lander crash into the lunar surface. The primary objective of the mission is to show that the space agency is capable of performing a soft landing on the Moon. India’s effort places them in a select group of nations that have accomplished a soft landing on the moon. The Soviet Union, China, and the United States are the club’s only current members.

At 18:14 (IST) on August 23, 2023,

India launched Chandrayaan 3 toward the Moon.

IST 18:04, 23 AUG 2023
History of the Chandrayaan-3 scripts
At the mission control centre, there is raucous applause as the Chandrayaan 3 lander successfully completes a safe and smooth landing.

IST 18:01, 23 AUG 2023
Lander makes an effective tilt.
Before landing, the Vikram lander has successfully tilted to a horizontal position. Now, it is only a few hundred meters above the landing area.

IST 17:59, 23 AUG 2023
As Chanrayaan 3 approaches, mission control applauds
As the lander hovers 1 km above the ground before landing, which did not occur during Chandrayaan-2, there are cheers in MoX.

17:57 (IST), 23 AUG 2023
The phase of attitude holding finished
The lander finished its attitude-holding phase and entered the fine braking phase at an altitude of roughly 7.43 kilometres above the lunar surface.

IST 17:47, 23 AUG 2023
starts the rough-braking phase
During the harsh braking period, which lasts just over 10 minutes, the speed of the Chandrayaan-3 lander module will drop from above 6000 kilometres per hour to 500 kilometres per hour, according to ISRO.

Chandrayaan 3 landing updates: India is the first nation to land close to the lunar south pole during the Chandrayaan-3 mission

ST 17:45, 23 AUG 2023
At 5.44 PM IST, the automatic landing sequence was initiated.
At exactly 5.44 PM IST, Chandrayaan 3 reached a designated spot, which initiated the Automated Landing Sequence. The throttleable engines are started by the LM for a powered descent when it receives the ALS command. According to ISRO, “the mission operations team will keep verifying the sequential execution of commands.” The powered fall of the Chandrayaan-3 mission has started.

IST 17:42, 23 AUG 2023
Important changes in Chandrayaan-3
According to S Somanath, the head of ISRO, the improvements to the mission are “failure-based,” meaning that researchers examined what went wrong with Chandrayaan-2 in order to enhance its successor. Some of the updates are listed below.

Legs that have been strengthened: The new Vikram lander’s legs have been strengthened so that it can land safely at speeds of up to 10.8 kilometres per hour. Of course, if anything like Chandrayaan-2 occurs, where the lander crashes while travelling at a speed of about 580 kilometres per hour, this may not actually be helpful.

Greater fuel capacity: The Chandrayaan 3 mission has a larger fuel capacity than its predecessor to allow for any last-minute adjustments that may be required.

More solar panels: As opposed to its predecessor, the new Vikram Lander has solar panels on all four of its faces.

Additional tools, and better software More importantly, the Chandrayaan 3 project has upgraded its software and added instrumentation to support the soft-landing effort. Included in this is the Laser Doppler Velocimeter, which will use laser beams fired at the lunar surface to determine the speed of the Lander. The upgraded program has numerous redundancies that will enable it to handle a variety of situations.

IST 17:14, 23 AUG 2023
The final four stages
K Sivan, the ISRO chairman during Chandrayaan-2, referred to the final few minutes of the Moon landing as the “15 minutes of terror.” Four phases make up those essential 15 minutes, which will be equally important and nerve-wracking during the Chandrayaan 3 mission:

Rough braking phase: For a soft landing, the lander’s horizontal velocity should drop from about 6,000 km/h to close to zero during this phase.

Attitude holding phase: The lander will tilt from a horizontal to a vertical position while travelling a distance of 3.48 kilometres at a height of around 7.43 kilometres above the lunar surface.

During the fine-breaking phase, which lasts around 175 seconds, the lander will move approximately 28.52 kilometres horizontally to the landing spot while lowering its altitude by almost 1 kilometre. Between the Attitude hold and fine-braking stages, Chandrayaan-2 lost control.
The totally vertical lander should now descend to the Moon’s surface in what is known as the terminal descent.

ISTRAC and MOX The Chandrayaan 3 project, which aims to make history by landing on the Moon, will be supported by ISRO’s ISTRAC (Indian Space Research Organization’s Telemetry, Tracking and Command) centre in Bengaluru and its mission control facility, known as MOX.

ISTRAC offers telemetry, tracking, and command services from the moment a rocket lifts off until the mission’s finish. Its network includes Deep Space Network stations as well as ground stations in Bengaluru, Lucknow, Mauritius, Sriharikota, Port Blair, Thiruvananthapuram, Brunei, and Biak (Indonesia).

Similar to how it was for Mangalyaan, Chandrayaan-1, and Chandrayaan-2, the MOX facility for Chandrayaan-3 is set up at ISTRAC.

IST 16:37, 23 AUG 2023
A nation waits impatiently
As the Chandrayaan 3 mission prepares to attempt a historic soft landing on the Moon, excitement has swept the nation.

Chandrayaan 3 landing updates: India is the first nation to land close to the lunar south pole during the Chandrayaan-3 mission

IST 16:17, 23 AUG 2023
The show will be run by machines
The “15 minutes of terror,” or the final few minutes of Chandrayaan 3’s landing, will be essential in determining whether the mission is successful or not. However, instead of being remotely flown during those 15 minutes, the Vikram lander will be under the control of the logic built into its computers. Naturally, ISTRAC mission controllers will be keeping a careful eye on it, but at that point, the spacecraft’s systems will be doing all the work.

This is due to the fact that radio communication from the Moon takes about two seconds to send or receive. This could result in a response time delay of up to four seconds in an emergency situation, which would be excessive.

Given that, the wisest course of action would be to let the spacecraft’s autonomous systems handle the situation.

If the propulsion system is effective, even if all the sensors fail, the aircraft will still land. It has been created in this manner. The lander will be able to land even if two of the engines fail this time. It has been created so that it ought to be able to withstand many failures. When alluding to the mission’s landing systems earlier this month, ISRO chairwoman S. Somanath remarked, “If the algorithms work well, we should be able to execute a vertical landing.

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