An In-Orbit Gold Standard
TRUTHS (Traceable Radiometry Underpinning Terrestrial- and Helio- Studies) is a new ESA mission led by the UK’s National Physical Laboratory (NPL) that will put the equivalent of a “metrology lab in space.”
Once launched, it will provide an SI-traceable reference for all other EO satellites, ensuring measurements of solar radiation and reflected light from Earth are directly linked to internationally agreed standards.
For you, that means the ability to anchor your sensor calibration to a trusted, independent, on-orbit reference without relying solely on costly in-house campaigns or post-processing corrections.
Key Commercial Benefits for Constellation Operators
Lower Calibration Costs:
Maintaining radiometric accuracy today means expensive field campaigns, Pseudo-Invariant Calibration Sites (PICS) visits and using on-ground labs. With TRUTHS, much of this can be replaced (or drastically reduced) by a space-based reference you can access remotely.
Interoperability Across Fleets:
If you operate multiple satellites, or partner with other providers, TRUTHS allows you to align datasets with precision, making it easier to deliver seamless multi-sensor products.
Extended Satellite Lifespan:
By correcting sensor drift more effectively, you can keep satellites in revenue-generating service for longer and delay costly replacements.
Premium Data Products:
With guaranteed calibration traceability you can offer “certified accuracy” as a selling point — unlocking higher-value contracts in defence, climate finance, insurance, and precision agriculture.
Competitive Advantage for EO Service Providers
Service providers who buy imagery or data streams will also benefit from TRUTHS when it makes it possible to:
- Mix and match suppliers without fear of mismatch artefacts.
- Deliver multi-year trend analyses with unquestionable accuracy: essential for climate-related services and ESG reporting.
- Build customer trust through transparency. “Our products are calibrated to TRUTHS standards” becomes a badge of quality.
A Timely Solution for a Changing Market
The EO market is shifting toward integrated, multi-source data services. That trend makes interoperability and traceability not just nice-to-haves, but business-critical.
TRUTHS arrives at exactly the right time to:
- Support emerging climate-related disclosure regulations.
- Enable AI/ML models to work with higher-confidence data.
- Reduce the need for redundant in-orbit calibration satellites.
Secure Your Place in the TRUTHS Era
When TRUTHS begins operations, early adopters will have the ability to differentiate themselves instantly in an increasingly crowded EO market.
Whether you own satellites or transform raw data into customer-ready insights, TRUTHS offers a way to prove the accuracy of your product, reduce operational costs, and expand your market reach.