INSUBCONTINENT EXCLUSIVE:
NEW DELHI: India's third Moon mission Chandrayaan-3 is all set to attempt soft-landing on the lunar surface on Wednesday evening
Also See: Chandrayaan 3 Moon Landing LiveIf all goes well, Vikram, the Chandrayaan-3 lander, will touchdown a little after 6pm on Wednesday
Systems are undergoing regular checks
Smooth sailing is continuing
five decades yet soft-landing on the lunar surface remains a challenge
Here's why:Challenges ahead for Chandrayaan-3Soft landingLack of atmosphere makes it hard to slow down
Systems should read variation in local gravity and prevent 'communication shadows'.Lunar dustLanding by firing engines causes reverse flow
of hot gases and dust that can disrupt systems.ISRO moon mission: Chandrayaan-3 Rover to leave India's Imprint on the lunar surfaceExtreme
temperaturesThe lander and the rover will be exposed to extreme temperatures that vary from 54 degrees Celsius during day to -203 degrees
Celsius at night.Orbiting moonMoon's 'lumpy' gravity due to uneven mass distribution influences spacecraft's orbit
Needed: Precise knowledge of temperatures from 100km away.Deep-space communicationEvery message between mission control and spacecraft takes
Signals become weak with astral 'background noise' that gets picked up by antennas.Chandrayaan-3 Will Be First Lander To Land On Moon's
Moon's different parts have different pulls that affect the spacecraft's trajectory.Trans-lunar injection - lunar capture The challenge
posed by continuous change in Moon's location
Intersection of spacecraft and Moon's path must be predicted in advance with accuracy
Narrow margin of error.Where can Chandrayaan-3 mission be live-streamed?India's third lunar mission can be streamed live from 5:27pm
Isro official Website: Tune in to the official Isro website to catch the live stream as the spacecraft makes its descent onto the lunar
surface.YouTube: The Isro's official YouTube channel will be broadcasting the landing, providing a seamless experience for space enthusiasts
around the world.Facebook: Follow Isro's official Facebook page to join the global audience eagerly awaiting the moment of lunar
touchdown.WatchChandrayaan-3 Post-Touchdown Objectives Explained: What will lander - rover do after Moon touchdown?
