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Landsat Missions

Mission Headlines
December 22, 2014 – TIRS Level–1 Processing is Still Suspended

The configuration of the TIRS instrument on Landsat 8 remains unchanged since the detection of anomalous current levels associated with the scene select mirror (SSM) encoder electronics. The SSM electronics have been turned off with the instrument pointed at nadir and TIRS data continue to be acquired but not processed to generate Level–1 products. Plans are being formulated to switch to the “B-side” of the Main electronics Box (MEB) although the switch to the redundant electronics is not expected to occur until after the holidays. In the meantime the calibration validation team will continue to investigate whether updated calibration parameters can be derived. Landsat 8 Level–1 products will continue to be generated containing valid OLI data and TIRS bands consisting of zero-fill. Status updates will be posted as more information becomes available. (Read More)

December 19, 2014 – TIRS Calibration Reconfiguration

At 10:34 am (CST) the configuration of the TIRS instrument on Landsat 8 was reconfigured due to detection of anomalous current levels associated with the scene select mirror encoder electronics. Level 1 processing of TIRS and OLI data has been suspended until modified calibration parameter files are in place to enable processing to resume sometime late afternoon, December 19, 2014. (Read More)


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