<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div class="">I’ve noticed that Landsat on AWS is mostly “Pre-collection”. But coming from the USGS archive (e.g. Earth Explorer), I was expecting to find the same Collection-1 archive on AWS. Will the AWS archive be brought into sync with the USGS archive? Over what timeframe?</div><div class=""><a href="https://landsat.usgs.gov/may-10-2017-landsat-4-8-collection-1-processing-complete" class="">https://landsat.usgs.gov/may-10-2017-landsat-4-8-collection-1-processing-complete</a> </div><div class=""><br class=""></div><div class="">As an example, for path 047 row 027 there is Collection-1 data that goes back to 2013, but the Collection-1 data on AWS is just to 03/2017 (<a href="https://landsatonaws.com/L8/047/027/" class="">https://landsatonaws.com/L8/047/027/</a>)</div><div class=""><br class=""></div><div class="">Scenes after 03/2017 match the Collection-1 scheme:</div><div class="">LC08_L1TP_047027_20170502_20170515_01_T1 </div><div class=""><a href="https://landsat-pds.s3.amazonaws.com/c1/L8/047/027/LC08_L1TP_047027_20170502_20170515_01_T1/index.html" class="">https://landsat-pds.s3.amazonaws.com/c1/L8/047/027/LC08_L1TP_047027_20170502_20170515_01_T1/index.html</a><span class="Apple-tab-span" style="white-space: pre;"> </span></div><div class=""><br class=""></div><div class="">But all earlier scenes are pre-collection</div><div class="">LC08_L1TP_047027_20170331_20170414_01_T1 </div><div class=""><a href="http://landsat-pds.s3.amazonaws.com/L8/047/027/LC80470272017090LGN00/index.html" class="">http://landsat-pds.s3.amazonaws.com/L8/047/027/LC80470272017090LGN00/index.html</a> </div><div class=""><br class=""></div><div class="">A more detailed comparison is here:</div><div class=""><a href="https://gist.github.com/scottyhq/13aff1a37589baaf951b84ddea17f760" class="">https://gist.github.com/scottyhq/13aff1a37589baaf951b84ddea17f760</a> </div><div class=""><br class=""></div><div class="">Thanks for any insight!</div><div class="">Scott</div><div class=""><br class=""></div></div><br class=""><div class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div class="">------------------------------</div><div class="">Scott Henderson</div><div class="">eScience Postdoctoral Fellow</div><div class="">Earth & Space Sciences </div><div class="">University of Washington</div></div></div></body></html>