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Watch: ISRO successfully launches EOS-08 Earth observation satellite
| Video credit: The Hindu
The Indian Space Research Organisation (ISRO) on Friday (August 16) launched the EOS-08 Earth observation satellite through a spacecraft. Small Satellite Launch Vehicle (SSLV)-D3 was launched from Satish Dhawan Space Centre, Sriharikota.
The SSLV-D3, in its third and final developmental flight, lifted off from the first launch pad of the Satish Dhawan Space Centre at 9.17 am.
SSLV-D3 lifts off carrying Earth Observation Satellite (EOS-08) from Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh on Friday. | Photo Credit: PTI
Seventeen minutes later the EOS-08 satellite was launched into a circular orbit of 475 km, as intended. “The third developmental flight of SSLV, SSLV-D3 with EOS-08 satellite, has been successfully completed. The rocket has put the spacecraft into a very precise orbit as planned. I think there is no deviation in the injection conditions. The present indication is that everything is correct,” ISRO Chairman S Somanath said after the successful launch.
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Mr. Somnath said that with the success of SSLV-D3, ISRO has declared the development process of SSLV complete. “We are in the process of transferring the SSLV technology to the industry and this is a great start for the serial production and launch of SSLV,” Mr. Somnath said.
EOS-08 is a first of its kind mission, built on ISRO’s standard Microsat/IMS-1 bus, carrying advanced payloads for observations in the IR range, a novel GNSS-R payload and a SiC UV dosimeter.
The satellite brings several new technology advancements in satellite mainframe system such as Integrated Avionics System – Communication, Baseband, Storage and Positioning (CBSP) package, embedded structural panels with PCB, embedded batteries, Micro-DGA (Dual Gimbal Antenna), M-PAA (Phased Array Antenna) and flexible solar panels and Nano star sensors for onboard technology demonstration. The satellite is scheduled to be launched by SSLV-D3.
The satellite is carrying three payloads, namely Electro Optical Infrared Payload (EOIR), SAC, Global Navigation Satellite System- Reflectometry Payload (GNSS-R), SAC and SIC UV Dosimeter, LEOS.
The EOIR payload is intended to acquire images in Mid-wave IR (MIR) band and Long-wave IR (LWIR) band during day and night for various applications like satellite based surveillance, disaster monitoring, environmental monitoring, fire detection, volcanic activities and industrial & power plant disasters.
The objective of the GNSS-R payload is to demonstrate the capability of using GNSS-R-based remote sensing to achieve applications such as sea surface winds, soil moisture, cryosphere applications in the Himalayan region, flood detection, detection of inland water bodies, etc.
The SiC UV Dosimeter is intended for monitoring the UV radiation at the view port of the crew module in Gaganyaan mission and to be used as a high dose alarm sensor for UV radiation.
The spacecraft mission configuration is set to operate in a circular low Earth orbit (LEO) at an altitude of 475 km with an inclination of 37.4 degrees and has a mission life of 1 year. The SR-0 DemoSat developed by Space Kidz India was also onboard which was also placed in the intended orbit.
The SSLV is capable of launching mini, micro or nano satellites (weighing 10 to 500 kg) into a flat orbit of 500 km. The SSLV is a three-stage launch vehicle with an all solid propulsion stage and a liquid propulsion-based Velocity Trimming Module (VTM) as the terminal stage.
According to ISRO, the key design elements of SSLV are – low cost, short lead time, flexibility in accommodating multiple satellites, feasibility of launch on demand, minimum launch infrastructure requirement etc.
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