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CERES modes

https://forum.earthdata.nasa.gov/viewtopic.php?t=234

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CERES modes

Posted: Fri Jan 03, 2020 2:24 pm America/New_York
by EarthdataForumContributor
What are Cross-Track, Fixed and Rotating Azimuth Plane Scan modes?

Re: CERES modes

Posted: Fri Jan 03, 2020 2:25 pm America/New_York
by asdc_user_services
Fixed Azimuth Plane Scanning (FAPS) has scan lines perpendicular to the path of the satellite, while Rotating Azimuth Plane Scan (RAPS) lines are at a wide range of angles with respect to the satellite's path. An instrument operating in RAPS has increased spectral darkening of the transmissive optics. The Cross-Track instrument is recommended by CERES, since the spatial distribution of footprints is uniform.
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