[Liftoff: 53:00] ISRO Launch GSLV Mk II LIVE | ISRO's 100th Launch | GSLV-F15/NVS-02 Mission

ISRO will be attempting for its 100th Launch carrying NVS-02 Mission aboard the mighty GSLV Mk2 Rocket.

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GSLV-F15 is the 17th flight of India’s Geosynchronous Satellite Launch Vehicle (GSLV) and 11th flight with Indigenous Cryo stage.It is the 8th operational flight of GSLV with an indigenous Cryogenic stage and 100th Launch from the India’s Spaceport Sriharikota.GSLV-F15 payload fairing is a metallic version with a diameter of 3.4 meters.

The GSLV-F15 with indigenous Cryogenic stage will place NVS-02 satellite into a Geosynchronous Transfer Orbit & the launch will take place from the Second Launch Pad (SLP) at Satish Dhawan Space Centre, SHAR.

Navigation with Indian Constellation (NavIC) is India's independent regional navigation satellite system designed to provide accurate Position, Velocity and Timing (PVT) service to users in India as well as to region extending about 1500 km beyond Indian land mass.

NavIC will provide two types of services, namely, Standard Positioning Service (SPS) and Restricted Service (RS). NavIC's SPS provides a position accuracy of better than 20 m (2σ) and timing accuracy better than 40 ns (2σ) over the service area.

Navigation with Indian Constellation (NavIC) is India’s independent regional navigation satellite system designed to provide accurate Position, Velocity and Timing (PVT) service to users in India as well as the region extending about 1500 km beyond the Indian landmass, which is its primary service area.

NavIC is providing two types of services, namely, Standard Positioning Service (SPS) and Restricted Service (RS). NavIC SPS provides a position accuracy of better than 20 m (2σ) and timing accuracy better than 40 ns (2σ) over the primary service Area.

Five second-generation NavIC satellites viz., NVS-01/02/03/04/05 are envisaged to augment NavIC base layer constellation with enhanced features for ensuring continuity of services. The NVS series of satellites incorporates L1 band signals additionally to widen the services.

NVS-01, the first of the second-generation satellites was launched onboard GSLV-F12 on May 29, 2023. For the first time, an indigenous atomic clock was flown in NVS-01.

NVS-02, the second satellite in the NVS series is configured with Navigation payload in L1, L5 and S bands in addition to ranging payload in C-band like its predecessor-NVS-01. It is configured on standard I-2K bus platform with a lift-off mass of 2250 kg and power handling capability of ~3 kW. It will be placed at 111.75ºE replacing IRNSS-1E. NVS-02 uses a combination of indigenous and procured Atomic clocks for precise time estimation.

NVS-02 satellite was designed, developed and integrated at U R Satellite Centre (URSC) with the support of other satellite-based work Centres. On completion of Assembly and Integrated Testing (AIT), the satellite was subjected to satellite level thermovac test to verify and validate its design and performance in simulated space environment during November-December 2024. The satellite underwent dynamic test during December 2024 thus confirming its suitability to withstand the dynamic loads anticipated during launch.

Geosynchronous Satellite Launch Vehicle Mark II (GSLV Mk II) is the launch vehicle developed by India, to launch communication satellites in geo transfer orbit using cryogenic third stage. Initially Russian GK supplied cryogenic stages were used. Later cryogenic stage was indigenously developed and inducted in Jan 2014 from GSLV D5 onwards. This operational fourth generation launch vehicle is a three stage vehicle with four liquid strap-ons. The flight proven indigenously developed Cryogenic Upper Stage (CUS), forms the third stage of GSLV Mk II. From January 2014, the vehicle has achieved six consecutive successes

The GSLV Mk2 (Geosynchronous Satellite Launch Vehicle Mark II) is India’s iconic workhorse rocket, developed by ISRO to launch heavy satellites into geostationary orbits. Known for its three-stage design, the GSLV Mk2 features a solid rocket booster, a liquid-fueled core stage, and a cryogenic upper stage, enabling it to carry payloads up to 2.5 tons. This rocket is a critical component of India’s space ambitions, playing a key role in missions like launching navigation satellites, communication satellites, and more. With its robust performance and advanced engineering, the GSLV Mk2 has become a symbol of India’s growing space capabilities

#ISRO #GSLVMk2 #Space