Indian Space Research Organisation is scheduled to launch a GSLV Mk-II rocket as part of the GISAT-1 mission. The launch window for the Earth Science mission is on Fri, Feb 28th, 2020, at 5:30 a.m. IST from Satish Dhawan Space Centre's Second Launch Pad.

MISSION

GISAT-1

GISAT-1 is an Indian earth observation satellite to be launched in geostationary orbit. It is tasked with continuous observation of Indian sub-continent and quick monitoring of natural hazards and disaster. GISAT carries an imaging payload consisting of of multi-spectral, multi-resolution from 50 m to 1.5 km. It will provide pictures of the area of interest on near real time basis including border areas.

GISAT carries an imaging payload consisting of of multi-spectral (visible, near infra-red and thermal), multi-resolution from 50 m to 1.5 km. It will provide pictures of the area of interest on near real time basis including border areas.

GISAT will provide near real time pictures of large areas of the country, under cloud free conditions, at frequent intervals. That is, selected Sector-wise image every 5 minutes and entire Indian landmass image every 30 minutes at 50 m spatial resolution.

The GISAT payload consists of:

700 mm Ritchey-Chretien telescope based on the CARTOSAT-2 design
Array detectors in VNIR, SWIR and LWIR bands
High-resolution multi-spectral VNIR (HRMX - VNIR): 50 m resolution
High-resolution multi-spectral (HRMX - LWIR): 1.5 km resolution
Hyper-spectral VNIR: 320 m and 192 m resolution
Hyper-spectral SWIR: 320 m and 192 m resolution
Camera electronics and data handling system
Electronically steerable transmit antenna system
High agility platform to enable large payload steering requirements

GISAT is built on a modified I-1K (I-1000) Bus, which is to be launched on a GSLV Mk.2A launch vehicle.

ROCKET

GSLV Mk-II

Geosynchronous Satellite Launch Vehicle Mark II (GSLV Mk-II) is the largest launch vehicle developed by India, which is currently in operation. This fourth generation launch vehicle is a three stage vehicle with four liquid strap-ons. The indigenously developed cryogenic Upper Stage (CUS), which is flight proven, forms the third stage of GSLV Mk-II. From January 2014, the vehicle has achieved four consecutive successes.

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