The Landsat Data Continuity Mission (LDCM) will provide continuity in the multi-decadal land use/land cover change
measurements of the Landsat Program for scientific research. The project office at the National Aeronautics and Space
Administration (NASA) Goddard Space Flight Center (GSFC) is responsible for the development, launch and post
launch activation and check out for the Landsat Data Continuity Mission. The LDCM project is currently in its
development phase with launch scheduled for December 2012 on an Atlas V launch vehicle provided by the Kennedy
Space Center (KSC) from the Vandenberg Air Force Base (VAFB). The project is a partnership between NASA and the
Department of the Interior (DOI)/United States Geological Survey (USGS). DOI/USGS is responsible for development
of the ground system and will assume responsibility for satellite and ground system operations following the check-out
period. This paper will provide an overview and the latest status of the LDCM mission.
KEYWORDS: James Webb Space Telescope, Space telescopes, Mirrors, Sensors, Telescopes, Space operations, Stars, Observatories, Hubble Space Telescope, Galactic astronomy
The JWST project at the GSFC is responsible for the development, launch, operations and science data processing for the James Webb Space Telescope. The JWST project is currently in phase B with its launch scheduled for August 2011. The project is a partnership between NASA, ESA and CSA. The U.S. JWST team is now fully in place with the selection of Northrop Grumman Space Technology (NGST) as the prime contractor for the telescope and the Space Telescope Science Institute (STScI) as the mission operations and science data processing lead. This paper will provide an overview of the current JWST architecture and mission status including technology developments and risks.
The JWST project at the GSFC is responsible for the development, launch, operations and science data processing for the James Webb Space Telescope. The JWST project is currently in phase B with its launch scheduled for August 2011. The project is a partnership between NASA, ESA and CSA. The U.S. JWST team is now fully in place with the recent selection of Northrop Grumman Space Technology (NGST) as the prime contractor for the telescope and the Space Telescope Science Institute (STScI) as the mission operations and science data processing lead. This paper will provide an overview of the current JWST architecture and mission status including technology developments and risks.
KEYWORDS: Sensors, Satellites, Data processing, Data modeling, Earth observing sensors, Space operations, Data communications, Earth sciences, Antennas, Data centers
NASA's Earth Science Mission Operations and Systems (ESMOS) Project is responsible for developing and operating sensor data capture, processing and delivery systems on behalf of NASA's Earth Science Enterprise (ESE). As the volume of sensor data being collected by the next generation of Earth observing satellites continues to dramatically increase, the demand for timely data delivery has correspondingly increased. The ESMOS Project has utilized a variety of techniques and methodologies to provide sensor data to the end user, and has collected a series of lessons learned with regard to the most efficient implementations based on the needs of the end user. This paper discusses the successes achieved and the pitfalls encountered by NASA, NOAA and ESA and makes recommendations for changes and enhancements to maximize future mission sensor data processing.
KEYWORDS: Calibration, Sensors, Earth observing sensors, Signal to noise ratio, Landsat, Space operations, Satellites, Lamps, Data centers, Remote sensing
The goal of the current Landsat mission is to acquire annual data sets of optical band digital imagery of the landmass of the Earth. Ground spatial resolutions for the panchromatic, reflective and emissive bands are 15, 30 and 60 meters, respectively. The design life for the Enhanced Thematic Mapper Plus (ETM+) imager on the Landsat-7 satellite is five years. The satellite was launched on April 15, 1999. The mission builds on the 27-year continuous archive of thematic images of the Earth from previous Landsat satellites. Early results from the ETM+ instrument, the spacecraft, and the ground processing indicate that the image quality is as good as expected and all systems are working. Partial Aperture Solar Calibrator (PASC) 100-day radiometric background stability is approximately plus or minus 1.0%. Full Aperture Solar Calibrator (FASC) 2-day stability is approximately plus or minus 0.2%. Mid-scale per pixel noise is approximately plus or minus 1.0%. Operational collection of Landsat's Long Term Acquisition Plan (LTAP) started June 29th. NASA Goddard Space Flight Center (GSFC) is responsible for the instrument, spacecraft, launch, flight operations and science team investigations. On October 1, 2000 USGS EROS Data Center (EDC) takes over flight operations while continuing archiving, monitoring quality, and distributing the imagery without restrictions on reprocessing and redistribution.
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