Former ISRO Chairman G Madhavan Nair says, "Vikram Lander and Pragyan Rover have been in deep sleep for almost two weeks now. It is almost like checking out something from the freezer and then trying to use it.
The temperatures would have gone beyond -150 degrees Celsius. At that temperature how the batteries, electronics and the mechanism survive is really a concern.
Of course, adequate tests have been done on the ground to establish that it will work even after such a condition. Still, we have to keep our fingers crossed.
The solar heat will warm up the instruments and also the charger batteries. If both these conditions are successfully met, it is a fairly good chance that the system will be operational again.
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