RF-based Earth Information


Advanced Earth Information

You can experience our RF-based Earth Information data in a number of different ways, either accessing it directly from a Spire API, or through an existing funding vehicle. Find out how you can start working with Earth Information today.

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There’s more to Earth than meets the eye

Spire Earth Information offers a live, global view of our planet’s environment, from its surface to near-space. Our customers are companies and governments who use our data to solve a number of challenges.

Surface Data

Study Earth’s surface using GNSS scatterometry and precise altimetry (GNSS-R), to measure ocean wind speed, soil moisture, flood inundation, and sea ice

Atmospheric Data

Monitor our atmosphere with precise GNSS Radio Occultation soundings, to improve global weather forecasting accuracy

Thermosphere Data

Track objects in low-Earth orbit with centimeter-level precise orbit determination, to calibrate ground tracking systems and map thermosphere density for improved space situational awareness

Ionospheric Data

Monitor the ionosphere, using measurements of electron density and scintillation to augment GNSS accuracy and track space weather events

True Global Coverage

Our data provides a global view, with coverage in remote regions like oceans and poles not observed by traditional systems.

A Focus on RF

Our satellites specialize in RF remote sensing: we operate the world’s largest RF sensing fleet, and are the largest producer of radio occultation and space weather data.

Constant Innovation

By continuously launching improved sensors and upgrading them in-orbit through software, we turn an ideas into a live feed from space in as little as 6 months.

Weather Forecasting

Weather Forecasting Impact with Radio Occultation

GNSS Radio Occultation (RO) profiles are a key input to all weather forecasting systems, providing significant improvement to long-term forecast accuracy. Using a proprietary GNSS payload called STRATOS, Spire miniaturized and commercialized the technique, becoming the world’s first commercial producer of RO measurements. Today, Spire is the world’s largest producer of RO data.

An independent assessment of Spire RO from NASA concluded it is “of quality consistent with the other GNSS-RO observing systems […] in terms of their weather forecast impact, and the spatial distribution was complementary in filling data void regions. Vertical information content was suitable for studying the fine structures and seasonal variabilities of the tropopause, and their penetration depth was very good and may be useful in the study of the planetary boundary layer.”

Ocean & Climate

Rapid Development of Ocean Monitoring Using Spire SDRs

Spire adapted its existing radio occultation instruments in space to perform the first dual-frequency, grazing angle GNSS-R altimetry measurements of the ocean. NASA performed an independent evaluation of the Spire data and found that “The GNSS reflected measurements show promise to measure sea surface height with a precision of 2.5 cm over 1 sec averages and an accuracy of < 10 cm.”

In collaboration with NOAA, Spire is now working on a follow-on project to produce the ocean altimetry measurements and use it to monitor coastal sea levels and the extent of sea ice in polar regions.

Space-Situational Awareness

Increasing Space Situational Awareness with Spire POD Data

Using Spire’s Precise Orbit Determination (POD) data as their calibration source, Slingshot Aerospace was able to effectively evaluate the relative accuracy of both public and private radars used to track objects in Low Earth Orbit and deliver their findings to the US Air Force.

In a separate assessment, NASA found that Spire POD data was “useful in retrieving thermosphere density via satellite drag – particularly in quantifying day-to-day variability.” With improved thermosphere modeling, operators and governments can more effectively predict the paths of spacecraft in low-Earth orbit and improve operator safety.

Autonomous Vehicles

Enhanced GNSS Integrity with Ionospheric Monitoring

Businesses and individuals are increasingly reliant on GNSS technologies for daily life and operational success across a wide range of industries, in particular for autonomous vehicles.However, GNSS technology can be disrupted by the ionosphere, and existing terrestrial and satellite systems are not able to provide global monitoring on the time-scales of the disturbances.

By monitoring and correcting these disturbances, autonomous vehicles can work more safely and with higher availability. In collaboration with the European Space Agency, Spire is developing a real-time ionospheric mapping system using Spire ionospheric data.

They trust our data
  • Spire partners
  • Spire partner
  • European space agency

Flexible Plans to Suit Your Need

Get data samples for free, so you can see what the data looks like. If you’d like to see more, we can work with you to determine suitable pricing based on what data type(s), volumes, latency, and usage rights you need for your application.


Data Sample

  • Up to one week of data, from one or more satellites
  • Radio Occultation Profiles
  • Total Electron Content files
  • POD files
  • Magnetometer data
Request a sample

Data Sample

Download a sample of our data.


Contact us

Our data is delivered through easy-to-use APIs, contact our team to get started.

Scientific & Research Use

Spire has pre-established funding vehicles with public agencies, for researchers and scientists to access our data under scientific and research licence


NASA-funded researchers are able to access Spire’s Earth Information data through the Commercial Smallsat Data Acquisition Program (CSDAP).

Logo Luxembourg Space Agency

Spire’s Earth Information data is part of the Luxembourg Space Agency’s data-lake.


Spire’s Earth Information data is part of the ESA EO Third Party Mission. Mission description and catalog.