Everything about ISRO’s Small Satellite Launch Vehicles
Hyderabad: The Indian Space Research Organisation’s (ISRO) indigenous new launch rockets, called the Small Satellite Launch Vehicle (SSLV), will have its maiden development flight in April, new Chairman Dr S Somanath indicated. The SSLV aims to cater to the market for the launch of small satellites into Earth’s low orbits that has emerged in recent […]
Hyderabad: The Indian Space Research Organisation’s (ISRO) indigenous new launch rockets, called the Small Satellite Launch Vehicle (SSLV), will have its maiden development flight in April, new Chairman Dr S Somanath indicated. The SSLV aims to cater to the market for the launch of small satellites into Earth’s low orbits that has emerged in recent years to cater to the needs of developing countries, universities for small satellites, and private corporations. Read more about the game changing small satellite launching vehicle….
The Indian Space Research Organisation (ISRO) chairman has mentioned the launch of an “SSLV-D1 Micro SAT in April 2022”. The SSLV can carry satellites weighing a maximum 500 kg to low orbit while the PSLV can launch satellites weighing above 1000 kg.
The SSLV (Small Satellite Launch Vehicle) aims to cater to the market for the launch of small satellites into Earth’s low orbits that has emerged in recent years to cater to the needs of developing countries, universities for small satellites, and private corporations.
Key Features
It is the smallest vehicle weighing only 110-tonne. It will take only 72 hours to integrate, unlike the 70 days taken now for a launch vehicle. It can carry satellites weighing up to 500 kg to a low earth orbit while the tried and tested Polar Satellite Launch Vehicle (PSLV) can launch satellites weighing in the range of 1000 kg.
SSLV is a three-stage all solid vehicle and has a capability to launch up to 500 kg satellite mass into 500 km Low Earth Orbit (LEO) and 300 kg to Sun Synchronous Orbit (SSO). It is perfectly suited for launching multiple microsatellites at a time and supports multiple orbital drop-offs.
The key features of SSLV are low cost, with low turn-around time, flexibility in accommodating multiple satellites, launch on demand feasibility, minimal launch infrastructure requirements, etc.
The Government has sanctioned a total cost of Rs. 169 Crores for the development project including the development & qualification of the vehicle systems and the flight demonstration through three development flights (SSLV-D1, SSLV-D2 & SSLV-D3).
ISRO’s new chairman Dr Somanath is credited with designing and developing the SSLV during his tenure as director of the Vikram Sarabhai Space Centre in Thiruvananthapuram since 2018.The maiden flight of the SSLV was scheduled to launch in July 2019 but that has since been delayed due to setbacks from Covid-19 and other issues.
Importance of SSLV
The development and manufacture of the SSLV are expected to create greater synergy between the space sector and private Indian industries – a key aim of the space ministry. Indian industry has a consortium for the production of PSLV and should come together to produce the SSLV as well once it is tested.
One of the mandates of the newly-created ISRO commercial arm, New Space India Limited (NSIL) is to mass-produce and manufacture the SSLV and the more powerful PSLV in partnership with the private sector in India through technology transfers. Its aim is to use research and development carried out by ISRO over the years for commercial purposes through Indian industry partners.
Small satellite launches have so far depended on ‘piggy-back’ rides with big satellite launches on the Polar Satellite Launch Vehicle (PSLV) — ISRO’s work-horse with more than 50 successful launches. As a result, small satellite launches have relied on ISRO finalising launch contracts for larger satellites.
Game-changer
Launch on demand
Lower per-kg launch cost
Reduced turnaround time
Increased production rate from industries
Multiple satellite mounting options for Nano, Micro and small satellites
capability to launch 6 to 8 mission per year
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