Image Navigation and Registration
In addition to the acquisition of imaging and sounding data, the GOES I-M system is capable of registering to a high degree of accuracy the earth's latitude and longitude locations of each picture element (pixel) within an image. This accurate determination of pixel location is accomplished by a ground computer in the operations ground equipment (OGE), which processes star and landmark data obtained by the Imager and Sounder. Working in conjunction with the spacecraft attitude and orbit control electronics (AOCE), the process maintains pointing of the pixels.
The accurate location and pointing of each pixel is a two-part process. The first part, image navigation, determines the location of a pixel within an image relative to an earth-referenced latitude and longitude. The second part, registration, entails maintaining the location of the pixels within an image and between repeated images to their earth-referenced latitude and longitude. This unique process, image navigation and registration (INR), yields daily imaging and sounding data on a precisely located, fixed-earth coordinate grid without ground interpolation.
- Image Navigation/Registration with Fixed Earth Projection
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