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NVS-02 Satellite Launched Successfully by ISRO, Achieving 100th Milestone from Sriharikota

The Satish Dhawan Space Centre in Sriharikota hosted the Indian Space Research Organization’s (ISRO) historic 100th launch early on Wednesday, January 29, 2025.

After taking off from the spaceport’s second launch pad at 6:23 a.m., the GSLV-F15 carrying the NVS-02 satellite successfully deployed the satellite in a Geosynchronous Transfer Orbit 19 minutes later using its in-house cryogenic stage.

“I am extremely happy to announce from the spaceport of ISRO that the first launch of this year has been successfully accomplished with the GSLV-F15 precisely placing the NVS-02 satellite into the intended orbit. This mission is our 100th launch from here. This is a significant milestone for our space programme,” said ISRO Chairman Dr. V. Narayanan.

During these 100 launches, ISRO has launched 548 satellites into orbit, according to Dr. Narayanan, who took over as the agency’s new leader earlier this month. Dr. Narayanan continued, “We have lifted 120 tonnes of payload in total, including 23 tonnes for 433 foreign satellites.”

A component of India’s Navigation with Indian Constellation (NavIC), the NVS-02 is the second satellite in the NVS series. NavIC is India’s autonomous regional navigation satellite system, according to ISRO, and it was created to give customers in India and the surrounding area precise Position, Velocity, and Timing (PVT) services. Its primary service area is approximately 1,500 km outside of the Indian continent.

Standard Positioning Service (SPS) and Restricted Service (RS) are the two service categories offered by NavIC. Over the core service region, NavIC SPS offers location accuracy of over 20 meters (2σ) and timing precision of over 40 nanoseconds (2σ).

Standard Positioning Service (SPS) and Restricted Service (RS) are the two service categories offered by NavIC. Over the core service region, NavIC SPS offers location accuracy of over 20 meters (2σ) and timing precision of over 40 nanoseconds (2σ).

In order to guarantee service continuity, five second-generation NavIC satellites, NVS-01/02/03/04/05, are planned to add improved functionalities to the NavIC base layer constellation. To expand the services, the NVS satellite series uses L1 band communications.

On May 29, 2023, GSLV-F12 launched NVS-01, the first of the second-generation satellites. In NVS-01, an indigenous atomic clock was flown for the first time. Like its predecessor, NVS-01, NVS-02, the second satellite in the NVS series, is set up with a range payload in the C-band and a navigation payload in the L1, L5, and S bands. It will take the place of IRNSS-1E at 111.75ºE. For accurate time estimation, NVS-02 combines in-house and purchased atomic clocks.

“The NavIC system is evolving as the backbone of indigenous satellite navigation ecosystem of the Indian region. The first batch of Indian Regional Navigation Satellite System (IRNSS) satellites launched in the previous decades has been successful in establishing the Personal Navigation Device (PND) services in the country, the NVS series is the second generation of these satellites that are progressively being deployed by the GSLV to augment NavIC constellation and further strengthening the PND ecosystem in the nation,” Dr. Narayanan said. He claimed that the second domestic atomic clock is a brilliant illustration of “Made in India” in terms of important technological advancement. “Today many applications based on NavIC spanning from strategic uses, tracking of shipping vessels, time synchronization, train tracking and safety of alert life dissemination are accomplished,” he added.

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