Based on the experience and data obtained by Indian
scientists from the Chandrayaan I mission, they launched another lunar mission.
Unlike Chandrayaan I, they also planned to land a spacecraft on the surface of
the moon. The mission was named Chandrayaan II. It had a probe and a lander
named Vikram Lander to land on the moon and inside the lander a rover named
Pragrayaan could travel on the moon. This lander has been named Vikram in memory
of Mr. Vikram Sarabayi, who is known as the father of the Indian space project.
Chandrayaan II mission was launched by ISRO on July 22,
2019, from Satis Dhawan Space Center and ISRO's GSLV Mark III rocket was used
for it.
The probe was taken to earth orbit and its thrusters changed
its orbit to a long elliptical orbit, gradually rotating around the earth for
several rounds and enlarging it to reach the moon. After it was caught by the
gravitational force of the moon, its thrusters were activated the speed was
reduced and it entered a spherical orbit at a distance of 100 km from the moon
on August 20, 2019. Then it had searched about the Vikram lander could land
safely. was studied and for that, a place was taken at the south pole of the
moon. To separate the Vikram lander from the main probe and land on the moon,
the thrusters reduced its speed and reduced its orbit to 30 km from the surface
of the moon and targeted a place to land and further reduced that orbit.
Suddenly the communication link between the Vikram lander and the ISRO main
control center was interrupted. No matter how hard they tried, communication
could not be restored. They thought it must have crashed into the surface of
the moon.