Sunday, August 11, 2019

chandrayaan 2 information

Chandrayaan 2, about the mission.


The chandrayaan-2 spacecraft was successfully launched at 2:43 p.m. IST on July 22, 2019, into its planned orbit with a perigee (nearest point to Earth) of 169.7 km and an apogee (farthest point to Earth) of 45475 Km. The launch was done from the Second Launch Pad at Satish Dhawan Space Centre SHAR, Sriharikota.

After the launch of Chandrayaan 2 spacecraft, a series of maneuvers will be carried out with the help of its onboard propulsion system to raise its orbit and place it in the Lunar Transfer Trajectory.

On entering Moon's sphere of influence, on-board thrusters will slow down the spacecraft for Lunar Capture. Subsequently, the orbit of Chandrayaan 2 around the moon will be circularised to a 100 x 100 km orbit through a series of orbital maneuvers.

On the day of landing, the Lander (Vikram) will separate from the Orbiter and then will perform a series of complex maneuvers comprising of rough braking and fine braking. Imaging of the landing region prior to landing will be done with the purpose of finding safe and hazard-free zones. Vikram will try its best to make a soft landing on a high plain between two craters — Manzinus C and Simpelius N — at a latitude of about 70° South on 7th September 2019.

Afterward, the Rover (Pragyan) will roll out and carry out experiments on the Lunar surface for a period of 1 lunar day which is almost equal to 14 Earth days. The total mission life of Vikram is also around 1 lunar day. The Orbiter will continue its mission for one year.

Sunday, August 4, 2019

Chandrayaan 2 Name and Pictures

            About the vision of chandrayaan 2

Moving slowly towards the edge of discovery

Chandrayaan 2 is an Indian lunar mission that will boldly go where no country has ever gone before — the Moon's south polar region. Through this effort, the aim is to expand our understanding of the Moon — discoveries that will help India and humanity as a whole. These insights and understandings aim at a pattern shift in how lunar expeditions are approached for years to come — boosting further expeditions into the farthest frontier.


                                                       Why are we going to the Moon?


The Moon is the nearest galactic body at which space discovery can be attempted and documented. It is also a promising testbed to exhibit technologies required for deep-space missions. Chandrayaan 2 efforts to foster a new age of discovery, increase our understanding of space, stimulate the advancement of technology,  promote global alliances, and inspire a future generation of explorers and scientists.



 What are the scientific objectives of Chandrayaan 2? 
Why explore the Lunar South Pole?

Moon provides the best linkage to Earth’s early history. It offers an unscathed historical record of the inner Solar system situation. However there are a few mature models, the origin of Moon still needs added explanations. Extensive mapping of the lunar surface to study variations in lunar surface composition is vital to trace back the origin and evolution of the Moon. Evidence for water molecules revealed by Chandrayaan-1, requires additional studies on the extent of water molecule distribution on the surface, below the surface and in the fragile lunar exosphere to address the origin of water on Moon.
The lunar South Pole is particularly interesting because of the lunar surface area here that remains in shadow is much larger than that at the North Pole. There is a chance of the presence of water in forever shadowed areas around it.
Chandrayaan-2 will try to soft-land the lander -Vikram and rover- Pragyan in a high plain between two craters, Manzinus C and Simpelius N, at a latitude of about 70° south.