India's Geosynchronous
Satellite Launch Vehicle (GSLV-F09) successfully
launched the 2230 kg South |Asia Satellite (GSAT-9)
into its planned Geosynchronous Transfer Orbit
(GTO) today (May 05, 2017). Today’s launch of GSLV
was its eleventh and took place from the Second
Launch Pad at the Satish Dhawan Space Centre SHAR
(SDSC SHAR), Sriharikota, the spaceport of India.
This is the fourth consecutive success achieved by
GSLV carrying indigenously developed Cryogenic Upper
Stage. In its oval shaped GTO, the South Asia
Satellite is now orbiting the Earth with a perigee
(nearest point to Earth) of 169 km and an
apogee (farthest point to Earth) of 36,105 km with
an orbital inclination of 20.65 deg with respect to
the equator.
Few seconds before the
launch countdown reached zero, the four
liquid propellant strap-on motors of GSLV-F09, each
carrying 42 tons of liquid propellants, were
ignited. At count zero and after confirming the
normal performance of all the four strap-on motors,
the 139 ton solid propellant first stage core motor
was ignited and GSLV lifted off at 16:57 IST.
The major phases of the flight occurred as
scheduled. About seventeen minutes after lift-off,
South Asia Satellite was successfully placed in GTO.
.
Soon after separation
from GSLV, the two solar arrays of the satellite
were automatically deployed in quick succession and
the Master Control Facility (MCF) at Hassan
in Karnataka assumed control of the satellite.
.
South Asia Satellite is a communication satellite
built by ISRO to provide a variety of communication
services over the South Asian region. For
this, it is equipped with Ku-band transponders.
Following the successful
launch, the Honorable Prime Minister of India, Mr.
Narendra Modi addressed along with the South Asian
leaders. He congratulated ISRO and remarked
that today was a historic day for South Asia and a
day without precedence. The Prime Minister
recalled that two years ago India made a promise to
extend the advanced space technology for the cause
of growth and prosperity of the people of South Asia
and felt that the successful launch of South Asia
Satellite today marks a fulfilment of that.
In the coming days, the
satellite orbit will be raised from its present
GTO to the final circular Geostationary Orbit (GSO)
by firing the satellite's Liquid Apogee Motor (LAM)
in stages. The South Asia Satellite will be
commissioned into service after the completion of
orbit raising operations and the satellite’s
positioning in its designated slot in the GSO
following in-orbit testing of its payloads.