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Rover Pragya will come out about 3-4 hours after the lander Vikram’s landing on the moon’s surface
Pragyan will do many experiments in one lunar day, the orbiter will continue to work on the mission for one year.
The mission will be webcast on ISRO’s website from 1.10 pm, live streaming on social media platforms
Chandrayaan-2 live : lander Vikram will land on the south pole of the moon between 1.30 am and 2.30 pm Friday-Saturday. Rover Pragyan from Vikram will come out between 5.30 to 6.30 in the morning.
In the last hours of the mission, the ISRO Chief K Sivan said that so far everything is going according to plan. ISRO scientists said that this is such a mission as to keep a child in a cradle.
Prime Minister Narendra Modi himself will be present at ISRO headquarters to witness this historic moment. He will also be accompanied by 60 children who won the science quiz last month.
The Prime Minister has appealed to the people to share pictures of this moment on social media. The mission will be webcasted on ISRO’s website at 1.10 pm. Apart from this, it will be live streaming on Facebook, Twitter and YouTube.
Pragyan will do many experiments on a lunar day
Pragyan will do many experiments on the lunar surface in one lunar day (one day of the moon). One day of the moon is equal to 14 days on Earth. The orbiter, orbiting the moon, will continue to work on the mission for one year.
If the lander Vikram lands on such a surface of the moon, where there is a slope of more thChandrayaan-2 enters the moon’s orbit, know how the way forwardan 12 degrees, then there will be a risk of it reversing.
‘Speed of lander will be low and reach the right place and make soft landing’
According to former ISRO chief G Madhavan Nair – Vikram on board cameras will determine the exact location. When the place matches, the speed of the 5 rocket engines installed in it will be reduced from 6 thousand km per hour.
The lander will float in the air for some time at the appointed place and take off slowly. Altitude sensors will also help for the landing of the lander.
Nair also mentioned that laser ranging systems, on board computers and many software have been installed in the lander for making soft landings. He said that this is a very complex operation. I do not think any country has taken landing on the moon of a vehicle through on board computers by taking real time pictures.
How long will it take to remove the rover from the lander?
The rover (wisdom) will remain inside the lander. It will exit the lander at a speed of 1 centimeter / second. It will take 4 hours to leave. After coming out it will run 500 meters on the lunar surface. It will work on the Moon for 1 day (14 days of Earth).
There are 2 payloads going with it. Their purpose will be to find out the presence of elements near the landing site and the fundamental structure of the rocks and soil of the moon.
The rover will collect this data through the payload and send it to the lander, after which the lander will pass this data to ISRO.
What work will the orbiter, lander and rover do?
The orbiter will work for one year after reaching the moon’s orbit. Its main purpose is to communicate between the earth and the lander. In addition, the orbiter will prepare a map of the lunar surface, so that the existence and development of the moon can be ascertained.
The lander will check whether earthquakes occur on the moon. Whereas, the rover will detect the presence of mineral elements on the lunar surface.
Moon dust protection is important
According to scientists
Moon dust is also a concern, it can cover the lander and disrupt its functioning. For this, four launchers will stop automatically during landing, only one will remain on. This will reduce the risk of dust blowing and covering its lander.
Soft landing on moon so far 38 attempts, 52% successful
The first attempt to touch the moon was made in 1958 by Russia and the US and Soviet Union. Between August and December 1968, both countries sent 4 Pioneer Orbiters (US) and 3 Luna Impact (Soviet Union), but all were unsuccessful.
So far, only 6 countries or agencies on the moon have sent satellite vehicles. Only 5 got success. So far 38 such attempts have been made, of which 52% were successful.
However, ISRO is confident of the success of Chandrayaan-2. Madhavan Nair also says that we are going to witness the historical moment. 100% success.
Vehicle Cost
Chandrayaan-2 – Rs 978 crore
Berheet (Israel) – Rs. 1400 Crore
Chang’e-4 (China) – 1200 Crore
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Also see: Success, Lander Vikram separated from arbiter- ISRO (Open in a new tab)
