WeatherStream (formerly Orbital Micro Systems)

Updated 2 Aug 2026
Manufacturer United States Listed
9 Products
11 Years Active
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About WeatherStream (formerly Orbital Micro Systems)

Orbital Micro Systems (OMS) spun out of the University of Colorado Boulder's Center for Environmental Technology to miniaturize millimeter-wave radiometer instruments that had previously required large government satellites. The company flew what it describes as the first commercially owned and operated space-based passive microwave radiometer, IOD-1 GEMS, proving that CubeSat-class atmospheric sensing hardware was viable for weather intelligence.

OMS now operates under parent brand Weather Stream, Inc., commercializing GEMS constellation weather data alongside software products (WeatherRecord, WeatherLock) and soil-moisture data products, targeting a 15-minute global refresh rate with a focus on historically under-observed regions such as South and Central Asia, Africa, and the Polar regions.

The company's partners and customers include NASA, NASA JPL (calibration hardware for the EZIE mission), Ball Aerospace, the UK Satellite Applications Catapult, AAC Clyde Space, Thomas Keating Ltd., the US Air Force, Space Force, and Navy, and Lockheed Martin.

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Products

9

GEMS is a constellation of CubeSats developed by Orbital Micro Systems Inc. to provide high-frequency, 3-dimensional temperature and moisture atmospheric profiles using microwave radiometer technology.

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The GEMS family of microwave radiometer instruments are designed to reduce the costs of satellite meteorology and enable improved global weather forecasting.

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GEMS2 CubeSats will improve the global availability of critical weather data utilizing multi-band microwave radiometers that improve the temporal and spatial resolution of microwave sounding and imagery data.

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MiniRad is a miniaturized passive microwave radiometer built by Orbital Micro Systems (OMS) that measures atmospheric temperature, humidity and precipitation from a 3U CubeSat, flown as the IOD-1 GEMS in-orbit demonstration payload.

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WeatherStream provides proprietary satellite weather data, including microwave sounder data, for climate and weather insights.

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Weather Stream offers high-resolution soil moisture measurements using uncrewed aerial systems, providing detailed soil moisture mapping across various terrains.

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SPECTRUM is a multi-model platform for environmental remote sensing, enabling rapid development of environmental algorithms from remote sensing data for various applications.

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Weather Lock is WeatherStream's next-generation numerical weather prediction solution, designed to fully exploit high-resolution passive microwave data from GEMS satellites.

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The Weather Record™ system provides rapid weather data processing and distribution in real-time, offering over-the-horizon weather insights on demand.

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