December 18, 2009 – Landsat 5 Anomaly
December 3, 2009 – TerraLook
September 28 – October 5, 2009 – Landsat Ground Station Operators Working Group (LGSOWG#38) Meeting
This year's Landsat Ground Station Operators Working Group (LGSOWG#38) meeting was held in Berlin, Germany, September 28–October 5, 2009. The meeting was jointly organized by the USGS and NASA and was hosted by the German Aerospace Center (DLR). Participants from 11 countries represented 14 international ground stations and discussed a wide range of programmatic and technical topics.
Presentations included Landsat 5 and Landsat 7 mission status, the Landsat Project’s Web-enabled product distribution statistics, Landsat 4 Thematic Mapper (TM) and Landsat 1-5 Multi-Spectral Scanner (MSS) product development progress, the Global Land Survey Projects, the Landsat Global Archive Consolidation initiative, proposed data validation and exchange modifications, and future development plans. LDCM-related presentations included project and ground system status, ground system and downlink overview, data processing flow, and the LDCM Ground System-to-International Cooperator (IC) interface, including the IC Web Portal. Additionally, the USGS Land Remote Sensing Program provided the attendees with an overview of the future land remote sensing satellite data downlink framework agreement, along with the National Land Imaging initiative’s international vision and goals. A Landsat Science Team update was also presented, providing an update on its working group activities and several key research projects.
Each International Cooperator briefed the group on the status of their systems, addressed their future satellite mission(s) and ground system plans, and provided an overview of their data distribution statistics and business model impacts since the introduction of Landsat web-enabled data. Finally, a representative from the Australian Department of Climate Change capped the meeting with a briefing on the Group on Earth Observation (GEO) Forest Carbon Tracking (FCT) initiative.
ICs in attendance included representatives from the following countries and organizations:
October 1, 2009 – USGS Scientists Survey Users of Moderate-Resolution Satellite Imagery
September 29, 2009 – New Bulk Download Tool for Landsat Free Data.
August 20, 2009 – Free Landsat Scenes Go Public by the Million
On August 17, someone who wanted to see how the Earth looks from 440 miles away in space downloaded the one-millionth Landsat satellite image scene from a U.S. Geological Survey web site at its Earth Resources Observation and Science (EROS) Center in Sioux Falls, South Dakota. Since the USGS opened its full Landsat archive to user access at no charge last October, the response from across the nation and around the globe has grown exponentially.
"USGS satellite operations and its data archives at EROS enable experts, or any interested member of the public, to see the land objectively with unbiased, consistently calibrated data," said Secretary of the Interior Ken Salazar. "The historical depth and reliability of these earth observations are vital to scientists and land managers across the country and across the Department of the Interior in projects that range from climate change studies and invasive species surveys to the monitoring of drought and assessment of wildfire damage."
One development of particular note is that the very oldest data in the archive, dating to over three decades ago, is being downloaded at unprecedented levels - with land-surface change detection emerging as a primary use of Landsat data.
"The opening of the Landsat archive to free, web-based access is like giving a library card for the world's best library of Earth conditions to everyone in the world," said Adam Gerrand, Food and Agriculture Organization of the United Nations
Landsat 1 was launched on July 23, 1972, and subsequent Landsat missions have continually acquired land-image data across the globe. Scientists, educators, and the general public use these data for a wide array of activities ranging from supporting disaster relief efforts to making agricultural crop assessments to identifying sites for cell phone towers.
Landsat scenes can be previewed and downloaded through:
Additional information on satellites, sensors, data, and the Landsat Program, which is managed by the USGS in partnership with NASA, can be found at: http://landsat.usgs.gov
USGS provides science for a changing world. For more information, visit www.usgs.gov.
August 17, 2009 – Landsat 5 Update
Engineers deemed the data from Friday, August 14 as non-nominal due to cooler than normal temperatures associated with the primary focal plane of the instrument. Data from that day will remain unavailable for order or download. The Landsat Team continues to investigate the cause of the incident, but do not have anything definitive to report at this time.
August 14, 2009 – Landsat 5 Update
August 13, 2009 – Landsat 5 Anomaly
Landsat 5 experienced an anomaly in the early morning hours of August 13, 2009. The Flight Operations Team (FOT) is assessing the problem and testing spacecraft systems. No imaging will occur until further notice.
At 0523Z, the Landsat 5 spacecraft experienced an attitude anomaly characterized by extreme gyro rates. The spacecraft proceeded to tumble out of control for some time until the FOT was able to stabilize the satellite attitude (positioning). At this point, the spacecraft is stable and the FOT is beginning to analyze the data from the anomaly.
June 22-24, 2009 – The Landsat Science Team meeting
April 2, 2009 – Free data downloads hit 500,000
March 1, 2009 – Happy 25th Birthday, Landsat 5!
February 9-13, 2009 – Landsat Technical Working Group (LTWG#18) Meeting
This year's Landsat Technical Working Group (LTWG#18) meeting was held in Maspalomas, Spain, February 9–13, 2009. The meeting was jointly organized by the USGS and NASA and was hosted by the European Space Agency (ESA) and Spanish Space Agency Instituto Nacional de Técnica Aeroespacial (INTA). Participants from 11 countries, including members of the USGS Landsat and Landsat Data Continuity Mission (LDCM) Projects, represented 14 international ground stations and discussed a wide range of technical topics.
Presentations included Landsat 5 (L5) and Landsat 7 (L7) mission statuses, which outlined recent L5 battery management improvements, the Landsat Project’s Web-enabled product distribution, the Global Land Survey 2005 and 2010 Projects, the Landsat Global Archive Consolidation initiative, and other technical items and future plans. With LDCM sensor and spacecraft development well underway, this was the primary topic of discussion. Related presentations included project and ground system status, ground system and downlink overview, data processing flow, and the Landsat Science Team. A new International Cooperator Landsat/LDCM Web portal was also introduced, as well as current and future data validation and exchange plans.
Each International Cooperator briefed the group on the technical status of their systems, provided information on the status of their new L5 Thematic Mapper Calibration Parameter File and Landsat Metadata Description Document metadata and browse implementations, and addressed the future satellite mission and ground system plans of their agencies.
Australia briefed the attendees on a recent reorganization and on the creation of their new National Earth Observation Group. The Japanese delegation presented data distribution status for the Advanced Land Observation Satellite (ALOS) and its associated data node infrastructure. The German delegation presented information about several recent and future programs, including TerraSAR-X, TanDEM-X, EnMap, and RapidEye. The Brazilian delegation presented the status of the China-Brazil Earth Resources Satellite (CBERS) programs and a compelling briefing on the Satellite Monitoring of the Brazilian Amazon (PRODES and DETER Projects). ESA briefed the group on many programs in progress, including the Global Monitoring for Environment and Security (GMES) and their multi-mission architecture. The China Centre of Earth Observation and Digital Earth (CEODE) presented information about their new building planned for 2010 and extended an invitation to all participants for their 6th International Symposium on Digital Earth (September 9–12, 2009, in Beijing). Finally, the Thailand delegation capped the meeting with an interesting presentation on their recent and successful launch of the Thailand Earth Observation System (THEOS).
January 9, 2009 – USGS announcement: Opening the Landsat Archive
January 6-8, 2009 – The Landsat Science Team meeting