It is no secret that ISRO's Chandrayaan-2 mission wasn't a complete success after all communication with the Vikram lander was lost after a hard landing on the moon's south pole. In a statement ISRO said: "Professor David Tirrell, Provost of California Institute of Technology, USA visited ISRO Headquarters, Bangalore and met K. Sivan, Chairman, ISRO and Secretary, Department of Space (DOS) on September 11, 2019". It has maintained that data received is being analysed. "And then, we have very high-resolution cameras and large spectral range", he added.
The orbiter, India's 32-metre antenna at the Byalu ground station, and NASA's Deep Space Network's 70-metre antennae have all been attempting to communicate with the Vikram. Thereafter, the solar panels will not be able to energise and it will be too cold for lander Vikram to operate.
The Lander Vikram was to soft-land on the far side of the moon at on September 7.
As days pass, the hope of lander Vikram's revival also diminishes because of the 14-day period.
On July 22, India launched its second moon mission with an aim to land a lander and rover on the moon's surface.
However, it has no around 500 kg of fuel, which ISRO claimed will make it possible for the orbiter to last seven years.
The mission is on track even though the launch was delayed by a week. Counter-intuitively, lowering and climbing would use much less fuel than attempting to stay at a lower orbit because of uneven lunar gravity. Uneven mass distribution changes the effect of gravity at different regions of the Moon - it is the most gravitationally "lumpy" body in the solar system.
The spacecraft went silent just minutes before it was supposed to safely touch down on the Moon, leaving its handlers back on Earth scrambling to save it. The space agency's attempts to communicate with the lander, which has tumbled and is in a tilted position, has been futile till date.