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What is INSAT-3DS? The weather satellite Isro is set to launch

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India is set to enhance its meteorological monitoring capabilities with the launch of INSAT-3DS, an advanced weather satellite developed by the Indian Space Research Organisation (ISRO). 

Scheduled for a February liftoff aboard the GSLV-F14 rocket, this state-of-the-art satellite will play a pivotal role in weather forecasting and disaster management.


INSAT-3DS is designed as a successor to the existing in-orbit satellites INSAT-3D and INSAT-3DR, aiming to provide uninterrupted services and significantly improve the overall capabilities of the INSAT system. 

INSAT stands for the Indian National Satellite System that provides various services, including telecommunications, broadcasting, meteorology, and search and rescue operations. 

The INSAT-3DS satellite was recently flagged off to the Satish Dhawan Space Centre (SDSC) SHAR in Sriharikota on January 25, following the successful completion of assembly, integration, and testing at the U R Rao Satellite Centre in Bengaluru.

This mission is a user-funded project in collaboration with the Ministry of Earth Science (MoES), and it showcases the substantial contributions made by Indian industries in its development. 


Built around ISRO’s reliable I-2k bus platform, INSAT-3DS has a lift-off mass of 2,275 kg and is equipped with cutting-edge payloads for enhanced meteorological observation.

The satellite’s sophisticated instruments include a 6-channel Imager and a 19-channel Sounder, which are meteorological payloads designed to monitor land and ocean surfaces. These tools will provide critical data for accurate weather forecasting and early warning systems for natural disasters, thereby bolstering India’s preparedness and response strategies.

Additionally, INSAT-3DS carries communication payloads such as the Data Relay Transponder (DRT) and the Satellite Aided Search and Rescue (SAS&R) transponder. The DRT will receive data from automatic Data Collection Platforms and Automatic Weather Stations (AWS), enhancing the country’s weather forecasting capabilities. The SAS&R transponder is a vital component for global search and rescue operations, as it is designed to relay distress signals and alert detections from beacon transmitters.

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The launch of INSAT-3DS marks a significant milestone for India’s space program and its commitment to leveraging space technology for societal benefits. 

With its advanced features, INSAT-3DS is set to fortify India’s position in meteorological observation and disaster management, providing invaluable support to both national and international communities.

source by: India Today News

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