From: "Jacques van Oene" <j.vanoene@chello.nl>
Newsgroups: sci.space.news
Subject: INSAT-3A Takes Over Satellite-Aided Search and Rescue Services
Date: Tue, 3 Jun 2003 19:26:43 +0200
Organization: Jet Propulsion Laboratory - Pasadena CA
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INSAT-3A Takes Over Satellite-Aided Search and Rescue Services
June 2, 2003


 ISRO's latest satellite in the INSAT series, INSAT-3A, launched on April
10, 2003, has taken over the Satellite Aided Search and Rescue services that
were being provided by INSAT-2B so far. INSAT-2B, which was launched in July
1993, has outlived its design life.

INSAT-3A is the only geostationary satellite at present, which is providing
Geostationary Orbit Satellite Aided Search and Rescue services (GEOSAR) in
this part of the globe, covering Europe to Australia in the Indian Ocean and
the Australian regions. Two American satellites, GOES(W) and GOES(E) provide
these services on the Western Hemisphere.

Satellite Aided Search and Rescue service is provided under the
international COSPAS-SARSAT system that provides location information of the
distress signals transmitted by beacons mounted on board ships, aircraft or
those carried by individuals. The GEOSAR transponder on INSAT-3A complements
the Low Earth Orbit COSPAS-SARSAT satellites in receiving the distress
signal transmission and its detection.

The ISRO Telemetry, Tracking and Command Network (ISTRAC) operates two
ground stations to receive and process the distress signals detected by Low
Earth Orbit COSPAS-SARSAT spacecraft besides a ground station capable of
receiving and processing distress signals detected by the GEOSAR transponder
of INSAT spacecraft in the geostationary orbit. The Mission Control Center
is located at Bangalore.

The location and other details of the beacon, transmitting the distress
signals, are determined instantaneously and informed to rescue coordination
centres for carrying out search and rescue operations of the affected ship,
aircraft or individuals.

It may be noted that ISRO, as the nodal agency in India for the
COSPAS-SARSAT system, has helped in saving about 1,400 lives in the last 12
years by providing timely distress alerts. For example, on August 17, 2002,
the Indian Mission Control Center detected a distress signal from a Cyprus
registered motor vessel in the Arabian Sea and alerted the Indian Cost
Guard. All the 22 crew members on board the vessel were rescued by another
vessel. In another incident on September 23, 2002, all the 18 crew members
of a Turkey registered motor vessel were rescued before the vessel sank in
the Bay of Bengal, thanks to the distress signal detected by the Indian
Mission Control Center and the alert given to Indian Coast Guard.


----

Jacques :-)

Editor: www.spacepatches.info

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