Bengaluru based Indian space startup GalaxEye Space Solutions announced on 8 September 2026 that it has secured a US patent for the core technology behind its OptoSAR imaging system. OptoSAR is a satellite imaging system that combines an optical camera and a Synthetic Aperture Radar (SAR) on a single satellite to deliver clear, all weather, day and night images of Earth. With this grant, GalaxEye has become the first Indian startup to receive a US patent for satellite imaging technology.
What Is OptoSAR Satellite Technology by GalaxEye?
OptoSAR means Optical Synthetic Aperture Radar. It is GalaxEye’s proprietary system that places two different imaging sensors on the same satellite and makes them work together as one integrated payload.
The first sensor is an electro optical (EO) camera, often called a multispectral imager. It works like a high resolution camera in space. It captures sunlight reflected from Earth to produce clear, colour rich and easy to read images of roads, buildings, crops and forests. Its main weakness is dependence on light and clear skies. It cannot see at night and its view is blocked by clouds, smoke, fog and monsoon rain.
The second sensor is a Synthetic Aperture Radar (SAR). SAR is a radar based imaging method. Instead of using sunlight, it sends its own microwave signals toward Earth and records the signals that bounce back. The term synthetic aperture refers to the technique of combining many radar pulses collected as the satellite moves to create a large virtual antenna, which produces sharp images. Since it creates its own illumination, SAR works in day and night and its long waves pass through clouds. Its limitation is that radar images look like grey, grainy maps and are harder for ordinary users to interpret.
GalaxEye’s breakthrough is system level synchronisation. The company has designed a special architecture that aligns the optical and microwave sensors so both capture the same location at the same time and from the same viewing angle. The result is spatially and temporally matched data. In simple terms, the user gets the visual clarity of an optical photo plus the all weather reliability of radar in a single pass, without time gaps or alignment errors.
What Does the US Patent Cover and Why Does It Matter?
The US patent covers the core architecture and system GalaxEye invented to align and synchronise optical and microwave sensors for simultaneous data collection. It does not cover the general idea of using optical and radar together. It protects the specific way GalaxEye built the sensors, timed their observations and fused their outputs on one spacecraft. The same foundational technology has already been granted a patent in India.
A patent from the United States Patent and Trademark Office (USPTO) gives the owner the legal right to stop others from making, using, selling or importing that specific invention inside the United States for 20 years. It is not a quality certificate and it does not by itself approve the satellite for commercial use. For a deep technology company, however, it is valuable protection. Space sensors are expensive and difficult to reproduce, so a patent helps the inventor keep a larger share of the market and negotiate with global customers and investors with confidence.
For GalaxEye, the timing is strategic. The company plans to sell weather independent imaging across the world for defence and national security, agriculture, forestry, infrastructure, insurance, maritime intelligence and disaster management. US protection strengthens its intellectual property position in the largest Earth observation market as it prepares a planned constellation of 30 satellites over five years. Former Indian Space Research Organisation chairman S Somanath has described the innovation as an example of globally differentiated technology emerging from India’s private space ecosystem, with strong commercial potential for applications that need richer and faster intelligence.
Mission Drishti Satellite Launch Status Explained
Mission Drishti is GalaxEye’s first satellite and the world’s first OptoSAR imaging satellite. It combined multispectral optical imaging and SAR on a single platform. Weighing about 190 kg, it was also India’s largest privately built Earth observation satellite at the time of launch.
The satellite was launched on 3 May 2026 aboard a SpaceX Falcon 9 rocket from Space Launch Complex 4E at Vandenberg Space Force Base in California. After lift off, it established contact with ground stations and completed a major part of its Launch and Early Orbit Phase (LEOP). LEOP is the critical first few weeks when engineers test deployment, attitude control, onboard computers and communication links through the company’s Mission Control Centre in Bengaluru.
In the final stage of LEOP, the spacecraft faced an anomaly after an extreme geomagnetic solar storm. A geomagnetic storm is a disturbance in Earth’s magnetic field caused by charged particles from the Sun, which can damage satellite electronics through radiation. GalaxEye reported that radiation likely affected a critical onboard system. Communication first became intermittent and was then lost. On 7 July 2026, the company stated that recovery efforts were continuing but the chances of recovery appeared low.
Despite the loss, the mission validated more than 80 percent of onboard systems, including deployment, computing and in house operations. The company has said it will use these lessons to build two next generation OptoSAR satellites in the 300 kg class within 20 to 24 months, with improved in house manufacturing and supply chain control.
Synthetic Aperture Radar vs Optical Imagery: How OptoSAR Combines Both
Traditional Earth observation forces users to choose between two imperfect options. Optical satellites give intuitive pictures but fail when they are needed most, during floods, cyclones, heavy monsoon cloud cover or at night. Radar satellites keep watching in all conditions but their outputs need expert processing before a farmer, insurer or soldier can use them. Past attempts combined the two only through software after the images were taken separately, which left time gaps and location mismatches.
OptoSAR tries to solve this at the sensing stage itself by collecting both streams together. The difference becomes clear when the two methods are compared directly.
| Feature | Optical Imagery | Synthetic Aperture Radar (SAR) | GalaxEye OptoSAR System |
|---|---|---|---|
| Source of illumination | Sunlight reflected from Earth | Own microwave pulses sent to Earth | Both sunlight and microwave pulses together |
| Night operation | No, needs daylight | Yes, works day and night | Yes, continuous day and night |
| Performance in clouds, smoke and rain | Blocked, image is cloudy or blank | Passes through, image remains usable | Remains usable with visual detail added |
| Output style | Natural colour photo like image | Grey radar map, needs expert reading | Fused, analysis ready image with visual clarity |
| Best use | Crop health, land mapping, city planning in clear weather | Flood mapping, ship tracking, border watch in bad weather | Defence, disaster response, agriculture, insurance and maritime watch in all conditions |
This fused approach is especially useful for live satellite imaging needs such as tracking floods under cloud cover, monitoring crops during monsoon, spotting ships at night and assessing damage right after a cyclone. It also reduces dependence on foreign data providers for high resolution, all weather images.
Who Is GalaxEye and Where Does It Stand Among Indian Space Startups?
GalaxEye Space Solutions Private Limited is a Bengaluru based space technology startup founded in 2021 by five engineers from the Indian Institute of Technology Madras (IIT Madras), namely Suyash Singh, Denil Chawda, Kishan Thakkar, Pranit Mehta and Rakshit Bhatt. The idea grew from student work on Hyperloop pods and early experiments with aerial sensors on aircraft and drones, tested over 400 drone flights. The company was incubated at IIT Madras and is now headquartered in Bengaluru with a team of about 150 people.
GalaxEye is part of India’s fast growing private space sector. After the space sector reforms, the Indian National Space Promotion and Authorisation Centre (IN-SPACe) was set up in 2020 under the Department of Space as a single window agency to promote and authorise private space activity. IN-SPACe acts as the bridge between the Indian Space Research Organisation (ISRO), established in 1969 and headquartered in Bengaluru, and non government entities. Other prominent Indian space startups include Pixxel, which focuses on hyperspectral imaging, Skyroot Aerospace and Agnikul Cosmos, which build launch vehicles, Dhruva Space, which builds satellite platforms, and Digantara, which works on space surveillance.
Within this group, GalaxEye is building a vertically integrated business from spacecraft and sensors to data processing and artificial intelligence based analytics. It has raised about 27 million dollars across seed and Series A rounds, including a 10 million dollar bridge round, with backing from investors including Speciale Invest and Infosys associated funds. In August 2026, it acquired Bengaluru based spacecraft engineering firm StarOps, which traces its roots to TeamIndus, to bring satellite bus design and manufacturing in house. The company has also signed a data reseller arrangement with NewSpace India Limited (NSIL), the commercial arm of ISRO, to supply data to government users.
A useful reference point is NISAR, the NASA ISRO Synthetic Aperture Radar satellite launched on 30 July 2025 by India’s GSLV F16 from Sriharikota. NISAR is a large, 2,400 kg government science mission carrying L band and S band radars to study land deformation, glaciers and ecosystems every 12 days, with free and open data. GalaxEye’s OptoSAR satellites are much smaller commercial satellites focused on high resolution, high frequency images for paying users in defence, farming and infrastructure. The two show how radar imaging now spans both public science and private business in India.
What Lies Ahead for GalaxEye?
GalaxEye plans to move from a single demonstration satellite to a full Drishti constellation. The near term goal is to launch two next generation OptoSAR satellites within two years, followed by scale up to 10 satellites by 2029 and 30 satellites by 2030. A single satellite revisits the same spot only once in seven to ten days. A 30 satellite network can image any point on Earth roughly every three hours, which is the frequency needed for near real time defence watch, disaster alerts and daily farm advisories.
To support this scale, the company plans to expand its workforce from about 150 to nearly 350 people and to manufacture up to 20 satellites of 300 kg class per year from a new facility near Bengaluru. It is also developing artificial intelligence models that convert radar data into optical like images, so non expert users can read them easily. If these launches succeed, GalaxEye would give India an indigenous, high revisit, all weather imaging layer that complements government systems and reduces reliance on foreign commercial imagery, while also positioning an Indian invention as a global benchmark in Earth observation.
Key Takeaways
- GalaxEye became the first Indian startup to secure a US patent for satellite imaging technology on 8 September 2026 for its OptoSAR system.
- OptoSAR means Optical Synthetic Aperture Radar, a single satellite payload that fuses optical imaging with radar imaging for all weather, day and night observation.
- The patent covers the architecture to synchronise optical and microwave sensors for simultaneous, spatially and temporally matched data, already patented in India and protected in the US for 20 years.
- Mission Drishti, the world’s first OptoSAR satellite weighing 190 kg, was launched on 3 May 2026 by SpaceX Falcon 9 from Vandenberg and later lost contact after a solar storm.
- GalaxEye, founded in 2021 by IIT Madras engineers and based in Bengaluru, plans a 30 satellite constellation by 2030.
- IN-SPACe, set up in 2020 under the Department of Space, promotes private space activity, while NISAR, launched in July 2025, is the ISRO NASA radar science mission.
