In News:

India's first home-grown electric propulsion satellite to be launched in Dec.

Key Highlights:

• Objective of TDS-1:

• Purpose: To demonstrate electric propulsion technology for satellite steering, using solar-powered ionized gas.
• Goal: Reduce reliance on chemical fuel, making satellites lighter and more efficient.

• Key Benefits of Electric Propulsion:

• Weight Reduction: The technology can significantly cut down satellite mass. For example, a satellite weighing 4 tonnes could be reduced to around 2 tonnes.
• Fuel Efficiency: By using electric propulsion, the need for chemical fuel is minimized, allowing for a more efficient journey to geostationary orbit.

• Technology Details:

• Fuel Used: Gases like Argon are ionized using solar power to create propulsion.
• Process: The ionized gas is expelled at high speeds to generate thrust, pushing the satellite towards its desired orbit.

• Historical Context:

• The technology was first used in GSAT-9 (South Asia Satellite) in 2017 but with imported Russian components.
• TDS-1 marks the first fully indigenous development of electric propulsion technology by ISRO, highlighting India’s increasing space autonomy.

• Significance for India’s Space Program:

• Self-Reliance: TDS-1 reflects ISRO’s growing capacity to develop advanced space technologies domestically.
• Future Prospects: This breakthrough is expected to lead to more efficient satellite designs, enhancing India’s competitiveness in the global space industry.