Chandrayaan 2 mission was a highly complex mission, which represented a significant technological leap compared to the previous missions of ISRO, which brought together an Orbiter, Lander and Rover to explore the unexplored south pole of the Moon. Since the launch of Chandrayaan 2 on July 22, 2019, not only India but the whole world watched its progress from one phase to the next with great expectations and excitement. This was a unique mission which aimed at studying not just one area of the Moon but all the areas combining the exosphere, the surface as well as the sub-surface of the moon in a single mission.
The Orbiter has already been placed in its intended orbit around the Moon and shall enrich our understanding of the moon’s evolution and mapping of the minerals and water molecules in the Polar Regions, using its eight state-of-the-art scientific instruments. The Orbiter camera is the highest resolution camera (0.3m) in any lunar mission so far and shall provide high resolution images which will be immensely useful to the global scientific community. The precise launch and mission management has ensured a long life of almost 7 years instead of the planned one year.
The Vikram Lander followed the planned descent trajectory from its orbit of 35 km to just below 2 km above the surface. All the systems and sensors of the Lander functioned excellently until this point and proved many new technologies such as variable thrust propulsion technology used in the Lander.
The success criteria was defined for each and every phase of the mission and till date 90 to 95% of the mission objectives have been accomplished and will continue contribute to Lunar science , notwithstanding the loss of communication with the Lander.
Know everything about Chandrayaan 2 Phases
Earth-bound Phase Lift Off: 22 July Day 1 to Day 23 (23 days)
ISRO
ISRO
ISRO
Trans Lunar Injection (TLI): Day 23
Lunar Transfer Trajectory (LTT): Day 23 to Day 30
ISRO
Lunar Orbit Insertion (LOI): Day 30
Lunar Bound Phase (LBN): Day 30 to Day 42 (13 days)
ISRO
ISRO
Lander-Orbiter Separation: Day 43
ISRO
Deboosting: Day 44
Powered Descent Starts: Day 48
Landing: Day48
Illustration of Vikram lander and Pragyan rover on the lunar surface. Image: ISRO
ISRO
ISRO
ISRO
ISRO