Design
The mission is planned to fly on a
Geosynchronous Satellite Launch Vehicle
(GSLV Mk II) with an approximate lift
lift-off
mass of 3,250 kg (7,170 lb) from Satish
Dhawan Space Centre on Sriharikota Island.
As of February 2018, the mission has an
allocated cost of ₹800
800 crore (approximately
US$125 million).
Orbiter
The orbiter will orbit the Moon at an altitude
of 100 km (62 mi). The mission will carry five
instruments on the orbiter. Three of them are
new, while two others are improved versions
of those flown on Chandrayaan
Chandrayaan-1. The
approximate launch mass will be 1,400 kg
(3,100 lb). The Orbiter High Resolution
Camera (OHRC) will conduct high
high-
resolution observations of the landing site
prior to separation of the e lander from the
orbiter. Interfaces between the orbiter and its
GSLV Mk II launch vehicle have been
finalised.
velocity meter, accelerometer, and the
software needed
ed to run these components.
compon
The lander's main engine has
successfully undergone a high altitude test
for a duration of 513 seconds, and closed loop
verification tests of the sensors, actuators and
software
are
were
completed
in
2016.
Engineering models of the lander began
undergoing ground and aerial tests in late
October 2016, in Challakere in the
Chitradurga district of Karnataka. ISRO
created roughly 10 craters on the surface to
help assess the ability of the lander's sensors
to select a landing site.
Lander
Unlike Chandrayaan-1's
1's Moon Impact Probe,
which impacted
cted the Moon's surface, the
lander will make a soft landing
ng to then deploy
the rover. The lander will perform some
scientific activities. The approximate mass of
the lander and rover is 1,250 kg (2,760 lb).
The preliminary configuration study of the
indigenous
enous lander was completed in 2013 by
the Space Applications s Centre (SAC) in
Ahmedabad.
The research team identified methods for a
soft landing on the lunar surface, as well as
the associated technologies that will be
needed for such an event. Amongs
Amongst these
technologies are a high resolution camera,
navigation camera, hazard avoidance camera,
an 800 N (180 lbf) throttle able liquid main
engine and attitude thrusters, altimeter,
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