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ISRO Announces ‘Bhuvan’

Topics Covered: Awareness in Space.

ISRO Announces ‘Bhuvan’:


Context:

The Department of Space (DoS), under which ISRO comes, has signed an MoU with geospatial technology company CE Info Systems Pvt Ltd.

  • The collaboration will enable them to jointly identify and build a holistic geospatial portal utilising earth observation datasets, ‘NavIC’, Web Services and APIs (application programming interface) available in MapmyIndia.
  • The geospatial portals will be called ‘Bhuvan’, ‘VEDAS’ and ‘MOSDAC’.

Key facts:

Bhuvan is the national geo-portal developed and hosted by ISRO comprising geospatial data, services, and tools for analysis.

VEDAS (Visualisation of Earth observation Data and Archival System) is an online geoprocessing platform that uses optical, microwave, thermal, and hyperspectral EO data covering applications particularly meant for academia, research and problem solving.

MOSDAC (Meteorological and Oceanographic Satellite Data Archival Centre) is a data repository for all the meteorological missions of ISRO and deals with weather-related information, oceanography, and tropical water cycles.

What is NAVIC?

Navigation with Indian Constellation (NavIC) is an independent regional navigation satellite system designed to provide position information in the Indian region and 1500 km around the Indian mainland.

NavIC will provide two types of services:

  1. Standard Positioning Service (SPS) which is provided to all the users.
  2. Restricted Service (RS), which is an encrypted service provided only to the authorised users.

Its applications include:

  1. Terrestrial, Aerial and Marine Navigation.
  2. Disaster Management.
  3. Vehicle tracking and fleet management.
  4. Integration with mobile phones.
  5. Precise Timing.
  6. Mapping and Geodetic data capture.
  7. Terrestrial navigation aid for hikers and travellers.
  8. Visual and voice navigation for drivers.

How many satellites does NAVIC consist of?

It is powered by eight IRNSS satellites, of which one provides messaging services.

Three of these will be geostationary over the Indian Ocean, i.e., they will appear to be stationary in the sky over the region, and four will be geosynchronous – appearing at the same point in the sky at the same time every day.

  • This configuration ensures each satellite is being tracked by at least one of fourteen ground stations at any given point of time, with a high chance of most of them being visible from any point in India.

Why it is necessary to have indigenous global navigation system?

Having a global navigation system bolsters the ability of a nation to serve as a net security provider, especially through the guarantee of such assurance policies. It can also play a significant role in relief efforts post disasters such as the tsunami in the Indian Ocean region in 2004 and the Pakistan-India earthquake in 2005.

Sources: Indian Express.