• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1985-01-01T00:00:00.000+00:00

These events range from minor operational problems to permanent spacecraft failures. Australia, Canada, Germany, India, Japan, United Kingdom, and the United States have contributed data. This...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2013-05-01T00:00:00.000+00:00

The Space Environment Monitor (SEM) instruments onboard GOES 13-15 have four Energetic Particle Sensors, which include SEM/HEPAD (High Energy Proton and Alpha Particles Detector), SEM/EPEAD...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1994-05-01T00:00:00.000+00:00

The Space Environment Monitor (SEM) is a suite of instruments onboard the GOES satellite series. The objective of the SEM package is to measure solar radiation in the X-ray and Extreme Ultraviolet...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1974-07-01T00:00:00.000+00:00

*Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. The Space Environment Monitor (SEM) is a suite of instruments...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1974-07-01T00:00:00.000+00:00

*Note: This data has been reprocessed by NCEI adding quality flags and using consistent file formats across the period of record (POR). It is highly recommended that users access this version of...

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