What is NVS-01?

Why in news?

• The GSLV-F12/NVS-01 mission is designed to deploy the NVS-01 navigation satellite into a geosynchronous transfer orbit (GTO).

About NVS-01:

• It is the first in the series of second-generation navigation satellites built by ISRO’s UR Rao Satellite Centre in Bengaluru.
• At present, India uses its Navigation with Indian Constellation (NavIC) series of satellites for civilian and defence navigation in the Indian mainland and even 1500 kms beyond India’s borders. 
• NVS series of satellites will sustain and augment the NavIC with enhanced features.
• This series incorporates L1 band signals additionally to widen the services.
• For the first time, an indigenous atomic clock will be flown in NVS-01.

What is Navigation with Indian Constellation (NavIC):

• It is a regional navigation satellite system  established by the ISRO to meet the positioning, navigation and timing requirements of the nation.
• NavIC was erstwhile known as Indian Regional Navigation Satellite System (IRNSS).
• It is a constellation of seven satellites that work with a 24X7 network of ground stations while orbiting above Earth.
• Three satellites are placed in geostationary orbit and four in inclined geosynchronous orbit. 
• Coverage: The NavIC coverage area includes India and a region up to 1,500km beyond the nation’s boundary.
• Services offered:
  • It offers two services — Standard Position Service for civilian users and Restricted Service for strategic users.
  • The system is used in terrestrial, aerial, marine transportation, location-based services, personal mobility, resource monitoring, surveying and geodesy, scientific research etc.

What is Geosynchronous Transfer Orbit (GTO)?

• To attain geosynchronous (and also geostationary) Earth orbits, a spacecraft is first launched into an elliptical GTO.
• There on, the satellite will independently use its onboard propulsion systems to perform orbit-raising manoeuvres and reach its intended orbit.

Q1) What is Geosynchronous Transfer Orbit (GTO)?

To attain geosynchronous (and also geostationary) Earth orbits, a spacecraft is first launched into an elliptical GTO. There on, the satellite will independently use its onboard propulsion systems to perform orbit-raising manoeuvres and reach its intended orbit.

Source: ISRO To Launch NVS-01 Navigation Satellite On May 29

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