With this launch, Insat expects to boost its transponder capacity
to over 100 through five birds in orbit. The Indian demand is projected
to reach 250 transponders in the next 10 years.
provides an overview of the transfer of Flight 160's Ariane
5 launcher as it nears a final turn before arriving on the launch
pad. The launch pad (with its tall towers that provide protection
against lightning strikes) is at the left.
Liftoff of Arianne Flight 160 is on schedule for Tuesday evening
(local time in Kourou), during a launch window that begins at 7:49
pm and closes at 8:30 pm (4.19 am and 5 am IST on Wednesday). ISRO's
Master Control Facility (MCF) at Hassan will take control as soon
as the satellite is launched into a transfer orbit.
The Ariane-5 is scheduled to launch the INSAT-3A satellite into
a geosynchronous transfer orbit (GTO) with a perigee of 200 km and
an apogee of 35,980 km. The satellite will be manoeuvered to its
final orbit by firing the satellite's apogee motor. Subsequently,
the deployment of solar array, antennae and the solar sail will
be carried out and the satellite will be commissioned after in-orbit
checkout. INSAT-3A is to be located at 93.5 deg east longitude in
the geostationary orbit.
INSAT-3A is the third satellite in the INSAT-3 series. INSAT-3B
and INSAT-3C were launched in March 2000 and January 2002 respectively
by the Ariane launch vehicle and both the satellites are now providing
is a multipurpose satellite for providing telecommunications, television
broadcasting, meteorological and search & rescue services. It carries
24 transponders - 12 operating in the normal C-band frequency, six
in Extended C-band and six in Ku-band. Nine of the 12 normal C-band
transponders provide expanded coverage and the remaining three have
India coverage beam. All the extended C-band as well as the Ku-band
transponders have India coverage beams. INSAT-3A also carries a
Another two satellites, INSAT-3D and INSAT-3E are planned for launch
in the next two years followed by INSAT-4 series of satellites.
here for more on the INSAT 3A