SatLeo Labs Readies TAPAS-1, a Commercial Thermal-Imaging Payload, for Launch

An Ahmedabad startup is about to put what it calls India's first commercial thermal "eye" into orbit. SatLeo Labs says its TAPAS-1 payload is scheduled to fly on 1 October 2026 aboard SpaceX's Transporter-18 rideshare mission. The launch is on a Falcon 9 from Vandenberg in California.

TAPAS stands for Thermal Access Platform for Analytics & Solutions. The company describes it as India's first dedicated commercial CubeSat-class thermal-imaging payload: a sensor that measures heat, rather than reflected light, from Earth's surface.

How it gets to orbit

SatLeo is not building and launching its own satellite this time. TAPAS-1 rides as a hosted payload on Dhruva Space's LEAP-2 mission. Dhruva, a Hyderabad company, runs LEAP as a service: it flies other companies' payloads on its own satellite platform, so startups can prove their hardware in orbit without first building a whole spacecraft.

The mission is a hosted payload rather than a separately launched SatLeo spacecraft. Launch schedules can change; this article does not report a successful launch.

Why thermal matters

Most Earth-observation satellites see the world in visible or near-infrared light, the way a camera does. Thermal infrared sensors measure the heat surfaces give off, and that reveals things optical cameras cannot:

• Urban heat islands: which neighbourhoods trap heat, and where cooling measures would help most.
• Crop stress: plants short of water run warmer before they visibly wilt, so thermal data can flag irrigation problems early.
• Disasters and infrastructure: fires, industrial hot spots and failing equipment all show up as heat signatures.
• Imaging at night: because thermal sensors detect emitted heat, they work in the dark.

India's heat problem makes this especially relevant. Heatwaves are becoming longer and more intense, and city planners, farmers, insurers and disaster managers all need better data on surface temperatures. Coverage of the launch described TAPAS-1 as a "thermometer for planet Earth".

Commercial thermal data is also a gap in India's private space line-up. Pixxel focuses on hyperspectral imaging, and GalaxEye on combining optical and radar data. SatLeo is going after the heat band that neither covers as its core product.

The company

SatLeo is an Ahmedabad-based space-technology company. TAPAS-1 will demonstrate and validate its thermal sensing and data-processing capabilities in orbit. SatLeo's bigger plan is a constellation of 10–15 larger satellites, with sources putting each at around 150 kg. The system is meant to combine thermal and visible imaging, to revisit the same place frequently, and to process data on board with AI before sending insights back to the ground. The company has said it aims to build that constellation by 2029.

Why it matters for India

It tests the hosted-payload route. Building a full satellite is expensive and slow. Flying a sensor on a provider's platform, as TAPAS-1 does on Dhruva's LEAP, lets a young company prove its hardware in space first. Customers and investors then have flight data rather than a slide deck. If this model works, more Indian startups can reach orbit sooner.

It fills a sovereign data gap. Much of the thermal data Indian users rely on today comes from government or foreign satellites, with limited resolution and revisit rates. A domestic commercial source, tuned to Indian conditions such as heat stress in cities and crops, would give planners and businesses a local option.

It shows India's space reforms at work. Since the 2020 reforms and the creation of IN-SPACe, private companies have been allowed to build and operate their own Earth-observation systems. A three-year-old startup flying a commercial thermal instrument, on another Indian startup's platform, is the kind of layered private ecosystem those reforms were meant to create.

What to watch

The immediate question is simple: does TAPAS-1 switch on, calibrate and return usable images? Thermal sensors on small satellites face tough engineering limits. Detectors must be kept at stable temperatures, and resolution is limited by the size of the optics that fit in a small payload. The first images will show how far a CubeSat-class instrument can go.

After that, the harder test is commercial: turning heat maps into products that farmers, city governments and insurers will pay for. SatLeo has run pilot projects on urban heat, and the constellation plan depends on converting that interest into revenue. The first step, though, is successful launch and in-orbit checkout.

Sources

Core announcement or reporting

Image: SatLeo Labs. Official SatLeo Labs logo; company identity, not a payload photograph. Original source.