Mission Drishti-India’s largest privately developed Earth observation satellite

The Bengaluru-based startup GalaxEye successfully on May 3 launched Mission Drishti. Carried into orbit by SpaceX’s Falcon 9 rocket from Vandenberg Space Force Base in California, this mission introduces the world’s first commercial OptoSAR satellite.

Why in the News?

It is the first satellite to combine two traditionally separate imaging technologies—Optical and SAR (Synthetic Aperture Radar)—onto a single platform. Prime Minister Narendra Modi hailed the launch as a “testament to the youth’s passion for innovation,” noting its significance in achieving sovereign, all-weather surveillance capabilities for India. 

Key Facts: Mission Drishti

Feature	Details
Manufacturer	GalaxEye (IIT Madras-incubated startup)
Launch Vehicle	SpaceX Falcon 9
Satellite Weight	190 kg (Largest privately-built satellite in India)
Technology	OptoSAR: Fuses Multi-Spectral Imaging (MSI) & Synthetic Aperture Radar (SAR)
Resolution	1.2 to 3.6 meters (Gen-1)
Orbit	Low Earth Orbit (LEO) at ~500 km altitude
Revisit Rate	Every 7–10 days (targeting 4 days with full constellation)

Technological Breakthrough: What is OptoSAR?

Traditionally, satellites use either optical cameras (which provide high-detail color images but are blinded by clouds/darkness) or radar (which “sees” through everything but produces complex, grainy data).

• SyncFused Technology: GalaxEye’s proprietary payload merges these data streams at the source.
• All-Weather Performance: It provides high-resolution, “analysis-ready” imagery even during heavy monsoon cloud cover or at midnight.
• Edge Computing: Features onboard AI processing (powered by Nvidia Jetson) to analyze data in orbit, reducing the time to deliver actionable intelligence to the ground.

Strategic Significance

The mission was inspired by India’s unique tropical geography, where persistent cloud cover often renders conventional satellites useless for over half the year.

• Operation Sindoor Lessons: The company noted that during Operation Sindoor, the military had to rely on commercial American satellites for bomb damage assessments due to weather constraints. Mission Drishti ensures India can now generate its own high-quality intelligence independently.
• Dual-Use Applications: Beyond national security and border surveillance, the data will be used for:
  • Agriculture: Monitoring crop health through clouds.
  • Disaster Management: Real-time flood and cyclone assessment.
  • Maritime: Tracking vessels in the Indian Ocean regardless of visibility.

Sources: AIR & NDTV