Landsat Missions

What are Calibration Parameter Files?

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What are Calibration Parameter Files?


Calibration and Validation is an important aspect of any remote sensing system. The calibration of the Landsat sensors is supported by data from preflight, postlaunch-onboard, and ground reference.

Calibration Parameter Files (CPFs) provide radiometric and geometric coefficients needed for processing of raw, uncorrected Landsat image data into Level-1 data products. Over 15,000 coefficients are issued to span distinct timeframes and are updated with improved calibration coefficients. CPFs are often updated with improved coefficients.

The Landsat Calibration page provides CPFs for all sensors, along with notices that describe the changes made from previous file updates.


Landsat represents the world's longest continuously acquired collection of space-based moderate-resolution land remote sensing data. Four decades of imagery provides a unique resource for those who work in agriculture, geology, forestry, regional planning, education, mapping, and global change research. Landsat images are also invaluable for emergency response and disaster relief.


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Page Last Modified: 04/25/18 01:57 pm