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Question:

What is the latency of U.S. Landsat Analysis Ready Data?

Answer:

Landsat 7 Analysis Ready Data (ARD) is available for download about 26 days after data acquisition, whereas Landsat 8 ARD is available about 16 days after acquisition. The reason for this latency is to apply the necessary calibration, such as definitive ephemeris and bumper mode parameters to Landsat 7 data, and refined Thermal Infrared Sensor (TIRS) parameters to Landsat 8 data, before they are processed into the Landsat Collection 1 Level-1 inventory structure. Note, only Landsat 7 Collection 1 Tier 1 and Landsat 8 Tier 1 and Tier 2 scenes are processed into Landsat ARD.

For more information please visit the Landsat Collections or Landsat ARD pages.