ISRO's SSLV final developmental flight today, Earth Observation Satellite to be launched, countdown begins
The Indian Space Research Organisation (ISRO) has initiated the countdown for the third and final developmental flight of its Small Satellite Launch Vehicle (SSLV) mission. This launch, set for Friday at 9:19 am from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh, signifies the conclusion of SSLV's development phase, which was originally slated for August 15.
The 34-meter-tall rocket will carry a 175.5-kilogram Earth Observation Satellite (EOS-8) equipped with three advanced payloads: an electro-optical infrared payload, a global navigation satellite system reflectometry payload, and a silicon carbide ultraviolet dosimeter. EOS-8's mission objectives include the development of a microsatellite, the creation of payload instruments compatible with the microsatellite bus, and the incorporation of innovative technologies for future satellites, according to ISRO.
The satellite is designed for various applications, including day-and-night imaging for surveillance, disaster monitoring, and environmental assessments. The first payload, EOIR, will capture images in both the Mid-Wave and Long-Wave Infrared bands, supporting satellite-based surveillance, disaster monitoring, environmental evaluations, fire detection, volcanic observation, and monitoring of industrial and power plant disasters.
The second payload, GNSS-R, will showcase GNSS-R-based remote sensing capabilities for applications like ocean surface wind analysis, soil moisture assessment, cryosphere studies over the Himalayas, flood detection, and monitoring of inland water bodies.
The third payload, a SiC UV Dosimeter, will monitor UV irradiance at the viewport of the Crew Module in the Gaganyaan Mission and act as a high-dose alarm sensor for gamma radiation.
The SSLV, standing approximately 34 meters tall and capable of carrying up to 500 kilograms, is designed as a cost-effective and flexible launch vehicle for small satellites. With the successful completion of this mission, SSLV is set to transition into full operational mode, enabling the launch of small satellites for both Indian industries and NewSpace India Limited, ISRO’s commercial arm.
This mission follows two successful SSLV test flights earlier this year, including PSLV-C58/XpoSat in January and GSLV-F14/INSAT-3DS in February. The countdown for the launch of the EOS-08 satellite began early on Friday, and this mission will mark the completion of SSLV's development phase.
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