NOAA Office of Satellite and Product Operations

Please Note:  

To view imagery from the operational GOES East (GOES-16) and GOES West (GOES-17) satellites, users may visit

Operational Calibration of the Imagers and Sounders
on the GOES-8 and -9 Satellites, Page 10

Michael Weinreb, Michael Jamieson, Nancy Fulton, Yen Chen, Joy Xie Johnson,
James Bremer, Carl Smith, and Jeanette Baucom


The imager uses a north-south array of eight silicon diode detectors to image the earth, and the sounder uses an array of four similar detectors, primarily for cloud detection. With each east-west or west-east traversal of the scan mirror, the imager thus produces eight adjacent east-west lines and the sounder, four. These detectors are not calibrated on orbit, but their data are processed to maintain image quality, as is described in the remainder of this section.

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Contact Michael P. Weinreb at
Latest Revision: July 9, 1997