Sensors from GOES-R's SEISS Instrument (image) NASA/Goddard Space Flight Center Caption Sensors from GOES-R's SEISS instrument work together. Clockwise: Magnetospheric Particle Sensor - Low Energy Range, Magnetospheric Particle Sensor - High Energy Range (MPS-HI), Solar and Galactic Proton Sensor, Data Processing Unit, and Energetic Heavy Ion Sensor. Credit ATC Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.