India's moon mission control station in Karnataka:  

[Technology India]: Bangalore, Nov 28 : The Indian
Space Research Organisation (ISRO) is setting up an
earth station for its first moon mission.

The Karnataka government had agreed to allot about 100
acres of land in Tavarakare in Bangalore south
sub-district for the station to monitor Chandrayan-1
spacecraft that will orbit the moon, G. Madhavan Nair,
the ISRO chairman, said here Sunday.

"We have identified and inspected the land for setting
up the Rs.1-billion earth station. The station will
exchange the voluminous data with the lunar orbiter at
a distance of 400,000 km from the earth," Nair told
IANS on the sidelines of a conference.

The land cost is estimated at about Rs.200 million.
The total cost of the moon mission is projected to be
Rs.3.9 billion ($87 million) as of now.

The deep space network with a 100-foot diameter
antenna dish will have ground and surveillance systems
to track the unmanned lunar probe and subsequent
missions of the ISRO.

"The station will be ready and operational by mid-2007
for launching Chandrayan during late 2007 or early
2008. The 529-kg spacecraft will be positioned at an
altitude of 100 km from the moon to conduct
experiments on its surface, explore its origins and
detect the presence of any form of life on it," Nair
said.

In the run up to its maiden launch on board the Polar
Satellite Launch Vehicle (PSLV) from the Satish Dhawan
Space Center at Sriharikota in Andhra Pradesh, ISRO
has started fabricating the spacecraft that will have
55-kg payload of on-board instruments. 

"We have decided to carry a 20-kg impactor besides 25
kg of payload as piggyback in the spacecraft. The
additional payload will be five foreign experimental
instruments from the US, Britain, Germany, France, and
the European Space Agency," Nair said.

Taking the cue from space-and-defence
scientist-President A.P.J. Abdul Kalam, ISRO has
decided to drop the impactor on the moon to study the
huge dust it is expected to kick up after hitting the
lunar surface at a very high velocity, with its
instruments intact.

"We want to see how a small prop can be dropped on the
moon so that we can learn a lot of technologies and
analyse the dust it will kick up after impacting the
surface," Nair said.

The space agency has modified the design and
fabrication of Chandrayan to integrate the impactor
that will descend on the lunar surface on a
hard-landing mode once the spacecraft is slotted in
the lunar orbit at a distance of 100 km.

Though Chandrayan will eventually crash into the lunar
surface after two years of orbiting, ISRO wants to
make an early assessment of the moon and its features
with the impactor's instruments.

"We want to collect the specific data of the lunar
surface with the impactor in the earlier stages so as
to make use of it (data) to design the spacecraft of
future lunar missions," Nair pointed out.

The impactor's instruments will study the dust
particles expected to remain suspended in the airless
lunar atmosphere for sufficient time to analyse the
chemical composition of its surface.

Asked whether ISRO plans to launch more unmanned lunar
probes after Chandrayan, Nair said such missions would
be a logical step.

"If the data from Chandrayan is promising and
exciting, we will certainly go for more such missions
in the next decade," he said.

--Indo-Asian News Service 




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