Calibration Parameter File

Computer files of fixed parameters used in the Ground processing System to convert raw uncalibrated bits from a spacecraft imager to radiometrically calibrated, artifact-reduced and geometrically-referenced or re-sampled products. For example, the USGS Landsat Ground Processing System (LGPS) at EROS Data Center uses the current Version of the Calibration parameter File (CPF) to convert input Level-0R in its archive to radiometrically corrected Level-1Rs and radiometrically and systematically corrected Level-1Gs or topographically corrected (Level-1G terrain) products. Each CPF is stamped with applicability dates associated with the date of acquisition of the imagery being processed. The image Assessment System (IAS) updates the CPF as necessary. (Source: Dr. John Barker)

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