IndianTiger
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In the first step towards
ending Indias dependence on
the US-controlled Global
Positioning System (GPS), the
first of seven satellites that
will form the Indian Regional Navigation Satellite System,
or IRNSS, is expected to be
launched by December 2012,
Indian Space Research
Organisation (ISRO) scientists
have said. The IRNSS will be composed
of seven geostationary
satellites to watch over the
country from 36,000 km
above the earths surface
two satellites each would be positioned in the north and
south, with three in the
middle, according to Pradeep V
Khekale, a senior scientist
with ISROs Space
Applications Centre (SAC) in Ahmedabad. Khekale is the
programme manager for
GAGAN, or GPS-aided Geo
Augmented Navigation, a
system that improves GPS
accuracy for users in India, and is involved in developing
the applications for IRNSS. Currently, only the United
States and Russia have
functional independent
satellite-based navigation
systems, although China has
recently launched two satellites for its own system.
The first satellite launch is
expected within a year, and
all seven satellites for IRNSS
are expected to be launched
within three years, said Chirag Dewan, a senior
scientist at SAC. The payloads for the IRNSS
would weigh approximately
2,000 kilograms, and would
need Geosynchronous Satellite
Launch Vehicles, or GSLVs, to
launch them. Khekale added that the two-frequency INRSS
would be more accurate than
the single frequency GPS. IRNSS is generating a lot of
interest, excitement and focus
at the SAC now, especially
after the successful launch of
the RISAT-1 just a few weeks
ago, said Shailendra Singh, a Radio Frequency engineer at
SAC who was part of the
RISAT mission, the payload
for which was developed
here.
ending Indias dependence on
the US-controlled Global
Positioning System (GPS), the
first of seven satellites that
will form the Indian Regional Navigation Satellite System,
or IRNSS, is expected to be
launched by December 2012,
Indian Space Research
Organisation (ISRO) scientists
have said. The IRNSS will be composed
of seven geostationary
satellites to watch over the
country from 36,000 km
above the earths surface
two satellites each would be positioned in the north and
south, with three in the
middle, according to Pradeep V
Khekale, a senior scientist
with ISROs Space
Applications Centre (SAC) in Ahmedabad. Khekale is the
programme manager for
GAGAN, or GPS-aided Geo
Augmented Navigation, a
system that improves GPS
accuracy for users in India, and is involved in developing
the applications for IRNSS. Currently, only the United
States and Russia have
functional independent
satellite-based navigation
systems, although China has
recently launched two satellites for its own system.
The first satellite launch is
expected within a year, and
all seven satellites for IRNSS
are expected to be launched
within three years, said Chirag Dewan, a senior
scientist at SAC. The payloads for the IRNSS
would weigh approximately
2,000 kilograms, and would
need Geosynchronous Satellite
Launch Vehicles, or GSLVs, to
launch them. Khekale added that the two-frequency INRSS
would be more accurate than
the single frequency GPS. IRNSS is generating a lot of
interest, excitement and focus
at the SAC now, especially
after the successful launch of
the RISAT-1 just a few weeks
ago, said Shailendra Singh, a Radio Frequency engineer at
SAC who was part of the
RISAT mission, the payload
for which was developed
here.
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