The Indian Space Research Organisation (ISRO) has achieved a significant milestone with the successful launch of the SSLV-D3/EOS-08 mission on August 16, 2024, at 9:17 AM IST from the Satish Dhawan Space Centre in Sriharikota. This mission marks the completion of the SSLV Development Project, paving the way for operational missions using this small-lift launch vehicle.
## Mission Overview
The SSLV-D3 mission successfully deployed the EOS-08 microsatellite, weighing approximately 175.5 kg, into a circular orbit at an altitude of 475 km. The satellite is equipped with advanced technology designed for Earth observation, featuring three primary payloads:
1. **Electro Optical Infrared (EOIR) Payload**: This instrument captures images in the Mid-Wave and Long-Wave Infrared bands, facilitating applications such as environmental monitoring, disaster management, and surveillance.
2. **Global Navigation Satellite System-Reflectometry (GNSS-R)**: This payload is utilized for analyzing ocean surface winds, assessing soil moisture, and detecting floods.
3. **SiC UV Dosimeter**: Designed for future manned missions, this payload monitors UV radiation levels and acts as a high-dose alarm sensor for gamma radiation.
The successful launch of EOS-08 follows the SSLV's previous flights, which included a failure during its first developmental attempt in August 2022, and a successful second flight in February 2023. The completion of the SSLV development program now positions ISRO to transfer technology to Indian industries, enabling commercial launches of small satellites.
## Technical Specifications
The SSLV is a compact three-stage launch vehicle capable of carrying payloads ranging from 10 kg to 500 kg into Low Earth Orbit. It utilizes solid propulsion stages complemented by a liquid propulsion-based Velocity Trimming Module for precise orbital insertion. The latest mission demonstrated consistent flight performance, a crucial objective for ISRO's future operational plans.
ISRO Chairman S. Somanath expressed satisfaction with the mission's outcome, stating, "The third development flight of SSLV (SSLV-D3) with EOS satellite has been successfully accomplished. The rocket has placed the spacecraft at the precise orbit as planned." He emphasized that the successful deployment of both EOS-08 and the co-passenger satellite, SR-0 DEMOSAT, indicates the robustness of the SSLV system.
## Future Implications
With the SSLV now fully operational, ISRO is poised to enhance its capabilities in launching small satellites, which are increasingly in demand for various applications, including communication, Earth observation, and scientific research. The successful completion of the SSLV Development Project not only strengthens India’s position in the global space industry but also supports the country’s growing commercial space sector.
In conclusion, the SSLV-D3/EOS-08 mission stands as a testament to ISRO's commitment to innovation and excellence in space exploration. As the organization transitions to operational missions, it is set to play a pivotal role in advancing satellite technology and expanding its commercial launch services.
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