Jadavpur, University Of Bengal Joined Hands With ISRO To Land Chandrayaan On Lunar Soil: The mistakes of the second lunar mission will begin to be corrected in the third mission. Chandrayaan-3 will make the lander Vikram sad. ISRO chairman K Sivan said that the feather-soft landing will take place on the dark side of the moon’s south pole, without any mechanical disturbance. India is going to go to the moon again. The process of making spacecraft for it has also started. The good news is that Bengal’s Jadavpur University is going to join ISRO’s hand in the third lunar mission. According to sources, two professors-researchers of Jadavpur University have taken the responsibility of making the lander model for this year’s lunar journey. ISRO has tied up with Jadavpur University.
In 2019, ISRO did not respond to the lunar mission since the lander named Vikram with the rover fell face down on the moon during the Chandrayaan-2 mission. Rather, many things have been said about Gaganyan (mission to send people into space). Preparations for the Gaganyaan mission are also in full swing. In the meantime, it has been heard that ISRO has started preparations for the third lunar mission. This time the responsibility is more. The Chandrayaan-3 mission has to land the lander on the lunar surface. No more mistakes will be made this time. Therefore, ISRO has given the responsibility of making the model of the lander and its soft landing in the hands of two experienced researchers from Jadavpur. It is known that Amitabh Gupta, professor of power engineering at the university, and Sion Chattopadhyay, professor of electronics and telecommunication department, have started the work of making the lander model.
The Chandrayaan-2 mission had three parts, the orbiter (which orbits), the lander (which lands on the ground and settles down), and the rover (motorized vehicle). According to sources, there is no orbiter in the Chandrayaan-3 mission. There will only be landers and rovers. They are being tested. ISRO researchers have not yet opened their mouths about what changes have been made in the technology of Chandrayaan 3. It has been heard that the purpose of the third lunar journey may also be to find the dark side of the moon i.e. the mystery of the South Pole. Chandrayaan 2’s lander Vikram is lost somewhere at the South Pole. Chandrayaan 3 will reveal the secrets of the mysterious back of the moon.
The excitement inside ISRO over Chandrayaan 3 According to ISRO sources, an attempt will be made to correct the mistake that was made in landing on the moon. Last year on the night of September 6, all communication with the lander Vikram was lost after the process of landing on the moon’s south pole began. The orbiter orbiting the moon sent a radio signal, but the Vikram lander did not pick it up. The first stage of descent was momentum balanced, i.e., Bikram’s velocity naturally decreased from 1,683 m/s to 146 m/s at a distance of 30 km to 7.4 km from the lunar surface. The problem arises in the second step. Vikram got too close to the surface of the moon and became frozen due to the speed. The specific velocity that was updated in his system is lost. As a result, Vikram fell with great speed. It crashed at least 500 meters away from where it was supposed to land. The third lunar mission will correct that error.
The researchers of Jadavpur said that experiments are going on so that the lander can be light as a feather and land on the moon. This year’s Chandrayaan has a total of 13 ‘thrusters’, which will help in a soft landing. The weight of the spacecraft including fuel is about 2500 kg. It will weigh down to 500 kilograms without fuel. It will have special cameras and other technologies. Technology is also being provided to maintain contact with the lander even if it moves away from the landing site.
Lander Vikram crashed into the chest of the moon during the second lunar mission, what went wrong?
By The Wall on how exactly Vikram could land on the back of the moon Eminent Astronomer Sandeep Chakraborty, Director, Indian Center for Space Physics, Kolkata When contacted, he said that Vikram had reduced the distance by going around the Moon in an elliptical orbit. It reached very close to the moon. After the landing process began on the night of September 6, 35*101 km The Vikram lander was supposed to come straight down to the lunar surface through orbit. The scientists kept the necessary programming in the lander to cross this 35 km distance. Vikram was supposed to land on the back of the moon by turning his face 90 degrees (Vertical) in the last 5 km. At this stage, the speed should be controlled in such a way that the lander can turn vertically and land on the lunar surface like a feather. which is called a Soft Landing. This 90-degree rotation did not happen. Instead, he flipped over completely from 2.1 km and hit the lunar surface hard.
The fact that the four thrusters on the four sides of Vikram could not work properly is also a big reason. Turbulence also occurs during central thruster activation. Important work was his. Slowing down the ladder to reach the lunar surface. The programming was exactly like this – Vikram started descending at a height of 35 km at a speed of 5600 km per hour. In the last seven and a half kilometers his speed should have been 550 km/h. Gradually reduced to 5 km to about 100 km/h. And just from the distance from which contact with Vikram was broken, the speed should have decreased to less than 1 m/s i.e. less than 3.6 km per hour. That didn’t happen. It was found that his velocity was 49 m/s horizontally and 59 m/s vertically.
