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March 20, 2015 - Attention Landsat Data Users

The Landsat 1-7 browse and full resolution browse products for MSS, TM and ETM+ data need to be reprocessed to correct a recent problem. The issue should be resolved by March 23, 2015. This Landsat browse problem does not affect the quality or usability of other Landsat data downloads.

Thank you for your patience in this matter.

November 20, 2013 - New Ground Control Available Soon for Select Path/Rows

New Ground Control Points (GCPs) will become available for a number of WRS-1 and WRS-2 path/rows on December 5, 2013. This will affect Landsat Multispectral Scanner (MSS), Thematic Mapper (TM), and Enhanced Thematic Mapper Plus (ETM+) data. (Read More)

July 8, 2013 - Old data being made newly available

As part of the Landsat Global Archive Consolidation effort, the first international Multi-Spectral Scanner (MSS) data from Canada has been added to the archive! MSS data, captured by the first Landsat missions, are often the most difficult to ingest and process, but yet can be the most valuable for studies using time series. The Canadian Centre of Remote Sensing contributed the data months ago, but the software to ingest that data successfully was just released in late June.

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May 1, 2013 - Landsat 5 MSS 2012-2013 Data Available

The workhorse of the Landsat 5 mission was the Thematic Mapper (TM) instrument. In November of 2011, the TM failed, and the MultiSpectral Scanner (MSS) instrument was brought back online a few months later. The MSS had not acquired data for over a decade, due to the loss of Band 4 (and the continued success of the TM). While the MSS was acquiring data, the ground station was crafting new capabilities to ingest the raw instrument data. The data have been successfully ingested and are available from EarthExplorer.

May 8, 2012 - Landsat 5 Thematic Mapper Ceases Routine Acquisitions - Update

After a silent winter, the USGS turned on the Landsat 5 Thematic Mapper (TM) in late April to determine the state of the electronics problem that suspended operations in November, 2011. Unfortunately, several alternate methods of acquisitions did not alleviate the problem, which severely limits any further acquisitions with the TM. (Read More)

April 12, 2012 - Landsat 5 Captures MSS Data

Landsat 5 recently captured and downlinked Multispectral Scanner (MSS) images for the first time in over a decade. An MSS sensor first flew on Landsat 1 in 1972 and was aboard each of the Landsats 1-5. The MSS was powered down on Landsat 5 in the late 1990's, but the USGS recently turned on the MSS to determine the current state of the sensor. (Read More)

March 24, 2011 - MSS orders held until April 1st

Starting on Friday, March 25th, MSS orders will be held so that radiometric enhancements can be implemented. MSS processing will recommence on April 1st, and notices will be sent, as typical, when scenes are completed. For more information on these enhancements, please see the L1-5 MSS Calibration page.

March 13, 2011 - Pending MSS and L4 TM Calibration Release

In the upcoming weeks, the Landsat Project will incorporate new radiometric enhancements for all Multi-Spectral Scanner (MSS) and Landsat 4 Thematic Mapper (TM) thermal data. A notice will be posted when the new calibrations are released in early April. At that time, all processed MSS and Landsat 4 TM data will be purged from the servers in order to ensure that all future MSS and L4 TM data have the new calibrations applied.

September 15, 2010 - MSS Data Products now created with LPGS processing system

Beginning September 15, 2010, all MSS data are processed using the LPGS processing system. Previously processed using NLAPS, the newly processed products are now consistent with Landsat ETM+ and TM data products. For more information, visit the MSS product page.

August 25, 2010 - MSS Transition to LPGS Processing

The Landsat project will begin processing MSS data on the Landsat Product Generation System (LPGS) on September 15, 2010. This is the same system that creates TM & ETM+ products, and there will be increased geometric accuracy in many of the MSS scenes. (Read More)

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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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The Landsat Update is an informal communication tool, prepared periodically and distributed electronically to USGS Landsat partners, to provide information about Landsat activities and related topics of interest.

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