The latest Landsat TM and ETM+ products have been generated as part of the Systematic Landsat Processing Archive (SLAP) project conducted since 2013 (the MSS dataset has started to be processed in 2015) and include data from the Kiruna, Maspalomas and Matera archives (including the Fucino, Neustralitz, O'Higgins, Malindi, Libreville and Bishkek Ground Stations).
There are 3 types of reprocessed Level 1 Landsat product available for user download:
Important information about all Landsat acquisitions is available here.
For FAQs regarding the Landsat Missions, see the USGS pages.
Algorithm Information (applicable to IPF v3.08)
The European Space Agency (ESA) has acquired Landsat data over Europe through the ESA ground stations during the last 40 years, in co-operation with the USGS and NASA. Lately, the product generation system of ESA has been significantly improved for supporting the Landsat MSS, TM and ETM+ archive reprocessing ESA-S2-Symp-2014 and aligning historical Landsat data to Landsat 8 and Sentinel 2.
In terms of products and algorithms, the approach of ESA and the USGS is now similar and ESA algorithms are mostly based on the USGS ones (even if the software is different). Developments of the ESA software include the following improvements, and are discussed in detail here;
For details of the algorithms, radiometric and geometric processing of the ESA Landsat TM and ETM+ products, see the Landsat Products, Algorithms and Processing Document.
Landsat Technical Documents
Landsat TM/ETM+ Links