Or­biter has fuel for 7 yrs, may spot Vikram in 3 days

Or­biter may get ex­tended life, could send more data

The Times of India (New Delhi edition) - - Times Nation - Suren­dra.Singh @times­group.com

Ben­galuru (Isro cen­tre): In­dian Space Re­search Or­gan­i­sa­tion chair­man K Si­van on Satur­day an­nounced that “90-95% of the Chan­drayaan-2 mis­sion ob­jec­tives have al­ready been achieved”, so “we should not call the mis­sion a fail­ure”.

“The or­biter will have a life­span of over seven-and­half years, not just one year as was said ear­lier, as there is a lot of fuel left. And there is a pos­si­bil­ity of find­ing the Vikram lan­der with in­stru­ments on board the or­biter,” Si­van told TOI.

He added, “The du­al­band syn­thetic aper­ture radar (SAR) on board the or­biter will be able to pen­e­trate and see up to 10 me­tres of the sub-surface of the po­lar re­gion and help us find wa­ter ice. And its ad­vanced IR spec­trom­e­ter can work up to 5 mi­cron in­stead of 3 mi­cron that the ear­lier ones had. These pay­loads will give a


lot of data.”

Clar­i­fy­ing that the land­ing op­er­a­tion was just a “demon­stra­tion, which we could not achieve”, Si­van said this “mis­sion won’t de­lay any other mis­sion and there are many in hand”.

A se­nior sci­en­tist told TOI that there is a pos­si­bil­ity of find­ing the lan­der with the or­biter within three days. “This is be­cause an or­biter takes three days to come to the same point. We know the land­ing site, but as Vikram de­vi­ated from the path at the last minute dur­ing the final de­scent, we have to look in an area of 10km by 10km with SAR, IR spec­trom­e­ter and cam­era.”

The sci­en­tist also clar­i­fied if Vikram has crash­landed and turned into pieces, the chances of find­ing it will be bleak. “How­ever, if the com­po­nent is in­tact, high-res­o­lu­tion imag­ing will capture it,” he added.

To­tal fuel in or­biter dur­ing launch was Or­biter has used about of fuel for the first two ma­noeu­vres Re­main­ing ma­noeu­vres around Earth will need of fuel Ma­noeu­vres around Moon will re­quire pprox­i­mately When it reaches Moon’s or­bit, it is likely to ha


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