On May 3rd 2026, at
12.29 pm IST, a Bangalore-based space start-up incubated by Madras IIT, GalaxEye,
has successfully launched Mission Drishti, the world’s first OptoSAR satellite,
into orbit. This 190 kg satellite was launched aboard a SpaceX-owned Falcon 9
rocket from Vandenberg Air Force Base, California, USA.
You might wonder: “Launching
satellites is now almost a routine matter; so, what’s remarkable about GalaxEye’s
190 Kg satellite?” Yes, everything about
it stands out as special.
According to the company’s press
release, “It is the first satellite
globally to integrate Electro-Optical (EO) and Synthetic Aperture Radar (SAR)
sensors into a single operational platform, enabling all-weather, day-and-night
imaging capabilities. This integrated approach addresses long-standing
limitations of conventional systems and enables more reliable and consistent
data acquisition across diverse environmental conditions.”
What makes this mission so special is not the weight of the satellite
but the breakthrough technology that it carries, which sets it apart. The
SyncFusion technology of Mission Drishti satellite synchronizes SAR and optical
images through hardware-level co-location and AI-driven software processing.
The X-band SAR sensor and 7-band
multispectral optical imager are mounted on a single, thermally stable optical
bench within a compact payload. This physical alignment eliminates parallax
errors from the outset, ensuring both sensors capture data exactly from the
same vantage point during a single satellite pass.
Onboard and ground-based AI
models perform sub-pixel co-registration, jitter correction, and precise
temporal alignment of data points. The result is a unified dataset that fuses
SAR's all-weather penetration with optical clarity into "SyncFused"
imagery, providing synchronized, context-rich output without needing separate
passes.
This breakthrough technology
captures the Earth in unprecedented detail. “This integrated approach addresses
long-standing limitations of conventional systems and enables more reliable and
consistent data acquisition across diverse environmental conditions”, claims
the company.
Images
offered by GalaxEye's satellite have an inbuilt advantage over traditional SAR
or optical imagery alone by virtue of combining their strengths into a single,
aligned dataset from one satellite pass.
Unlike
Optical images, which fail in clouds, darkness, or smoke, SyncFused technology adds SAR’s penetration
for continuous imaging while overlaying optical’s visual clarity and texture
for intuitive interpretation—eliminating “speckle” noise in SAR data, which
complicates image interpretation, segmentation and classification.
Traditional
fusion from separate satellites introduces parallax (angle differences) and
temporal gaps. As against this, SyncFused's co-located sensors ensuring perfect
time and perspective alignment (Precise synchronization), provides 3x more
information with sub-pixel accuracy for mission-critical uses like defense
operations.
Obviously,
this yields better results in sectors like agriculture where crop health or
soil moisture estimates are to be made, or mapping oil spills in oceans etc.,
by reducing analysis errors and dependency on ideal conditions.
That
aside, AI fusion in GalaxEye's SyncFused
OptoSAR technology aligns and merges SAR
and optical data using machine learning models for precise and automated
processing. It is said that AI algorithms perform fine-grained alignment of
pixels from the SAR and MSI sensors, correcting for tiny geometric distortions
and ensuring every data point matches spatially despite differing sensor
physics.
AI in
the ground and onboard detects and compensates for satellite vibrations (plus)
minor timing offsets, creating seamless captures without manual intervention.
The models generate intuitive ‘SyncFused’ images by overlaying SAR’s structural
data onto optical visuals, and as it also reduces speckle noise, their
interpretability improves.
This breakthrough technology was developed, and
the Drishti mission was launched by GalaxEye Space Solutions Pvt Ltd., an Indian
start-up founded by a five-member team
from IIT Madras Alumni: Suyash Singh – Co-Founder & CEO,
Denil Chawda – Co-Founder & CTO, Rakshit Bhatt –Vice President, Computing,
Kishan Thakkar – Vice President, Product Development and Pranit Mehta –Vice
President, Business Development.
This launch signals that
India has come of age. Once successfully deployed and commissioned, initial
imagery is expected to be delivered to customers in the coming weeks. GalaxEye’s founder,
Suyash Singh, said that the launch has already generated significant interest
from government and commercial stakeholders internationally seeking access to
high-quality, high-frequency Earth observation data. According to Mehta, the
current global market for earth observation satellite images is about $3.5-4
billion.
GalaxEye has partnered with NewSpace India
Limited (NSIL), the commercial arm of ISRO, to market and sell its data
globally. Through the commercial sale of its unique satellite imagery data to
defence, agriculture and utilities sectors, GalaxEye can generate revenue and
become self-sustaining. It is currently in its commissioning phase and is
targeting to roll out analysis-ready datasets within the next six weeks.
GalaxEye says that it plans to build a
10-satellite network by 2030 to ensure continuous monitoring of Earth without
gaps. This shall position India as a serious player in global Earth
observation.
The Five-Man team from the portals of IIT Madras
richly deserves our congratulations for revolutionising the imaging services
with their Drishti mission. It’s an exciting time for Indian space-tech with
GalaxEye pushing the boundaries, and we wish them grand success in their future
endeavours.

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