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Landsat 7 Ghost Partial Aperture Solar Calibrator

2021 (approx.)

Detailed Description

On Landsat 7, an extra partial aperture solar calibrator (PASC) signal appears in dark data about one Worldwide Reference System (WRS) row behind the first PASC glint. This "ghost PASC" is dimmer than the real PASC glint and is dimmer in some bands due to spectral effects, making it appear blue in Red Green and Blue (RGB) color value images made with band combinations 321 or 543 (browse images).   

Visit the USGS Landsat Optical Leak webpage to learn more about this anomaly. 

 

Sources/Usage

Public Domain.

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