ISRO's Chandrayaan-2 mission to moon: All you need to know about simulation tests at Mahendragiri

India on Friday reaffirmed its space prowess and commercial launch capabilities by launching its 100th satellite but this is not enough as ISRO is preparing Chandrayaan-2 to undergo moon landing simulation tests at Mahendragiri.

Chandrayaan-2 is India's second lunar exploration mission after the famous Chandrayaan-1 launched in October 2008. Developed by the Indian Space Research Organisation (ISRO), scientists will make a landing attempt in the first quarter of 2018.

The lunar mission will be launched using a Geosynchronous Satellite Launch Vehicle (GSLV Mk II) which includes a lunar orbiter, lander and rover, all made in India.

India will also be the first country in last four years to land on the Moon. In 2013, China’s unmanned ‘Yutu’ rover had done this with month-long walk on the planet.

Chandrayaan-1 Launch| Watch Video

"It is on schedule. We have to find out whether it is in March or not," ISRO Chairman A S Kiran Kumar told reporters here in a response to a question.

Speaking after the successful orbiting of 31 satellites, including weather observation  Cartosat-2 Series craft, by the PSLV-C40, he said the Chandrayan-II satellite was getting ready at the ISRO Satellite Centre.

Director of ISRO's Liquid Propulsion Systems Centre at Mahendragiri in Tamil Nadu S Somanath said tests related to Chandrayan-2 were underway at the centre also.

"What we are trying to do is to prove the ability to do a soft landing (the rover). Tests are on to demonstrate soft landing in a simulated way," he said.

Terming it as a "wonderful task", he said "we are trying to complete it in a short span of time and that is going onright now". 

To a query on whether there was possibility of ISRO carrying out manned space mission, Kumar said, "The possibility was always there for taking up such a mission but the government has to decide by giving resources."   

On the future launches to be taken up by ISRO in 2018, Kumar said the next launch will be a communication satellite. The GSLV-MkII first stage had been assembled and already completed integration.

"They are going through process and it is targeted sometime next month (for launch)," he said.

Beyond that, there would be MkIII and another PSLV which will carry navigation satellite IRNSS-1I.

"We also have a number of launches almost every month one launch and we are going to work towards that", Kumar, who is retiring later this month, said.

"We are trying to push the launch envelope to such an extent so that we have three of GSLV category and nine of PSLV category (this year). It is still quite a tough task", he said.

Referring to the unsuccessful launch of IRNSS-1H on 31 August last year, he said it was a peculiar case.

"Very marginal deviation created a problem. Not withstanding that what we did is we went through a rigorous process of analysing and have made the system more robust", the ISRO chief said.

Kumar said to identify the cause of the incident, a team was formed which carried out various simulations and review process were taken up by the scientists.

"Each time you encounter a problem you come out of it. You need not worry about the failure. If you have not failed it means, you have not tried hard enough. So, we need not worry about set backs", he said.
Kumar said launch vehicle technology was a very complex thing and in spite of hundreds of successes, there can still be a failure.

"That is why it is called as risky business. So what we need to clearly understand is that each time make the system more and more robust, learn the deficiency and keep improving", he added.

Vikram Sarabhai Space Centre (VSSC) Director K Sivan, who has been named the successor to Kumar, termed as 'excellent' today's launch and credited the entire ISRO team for the success.

He also noted that many international customers approached the ISRO for the launch immediately after the PSLV-C39 failure and it showed the confidence that they have in the agency's workhorse launch vehicle.

"We will be definitely meeting their expectations in the future also. This mission is definitely showing the green flag for the exciting high profile missions in 2018 such as the Chandryaan 2, GSLV mk 3 then GSAT-11," he said.

Director of Satish Dhawan Space Centre P Kunhikrishnan lauded ISRO scientists for opening the year with a success. This mission proved the effectiveness of all corrective measures taken in PSLV C-40 "making the vehicle more robust and reliable," he said.

Multiple projects were underway at the spaceport to ramp up ISRO's launch capabilities, he said. He said the second vehicle assembly building project was in the final phase of completion and it would meet the future launch requirements from the second launch pad.

With PTI Inputs