Summary of the report to Landsat Executive Council
by Darrel L. Williams, Landsat Project Scientist


The fourth Landsat Executive Council Meeting was held at Hughes Santa Barbara Remote Sensing on April 24, 1996. The report to the council by the Landsat Project Scientist included the following:

Development of Landsat 7 Image Assessment System (IAS) at EROS Data Center (EDC): The IAS is responsible for calibration of Landsat 7 radiometry and geometry, monitoring Level 0R data products for image quality and determining the ability to generate acceptable Level 1 images, and monitoring and evaluation of image related system performance. Development of the IAS is proceeding. The preliminary design review was held, successfully, in February, 1996. The critical design review is scheduled for September. Release 1 of IAS software is scheduled for April, 1997, and the system will reach full functionality in November of that year.

Second X-band receiving station: The primary receiving station for Landsat 7 will be at EDC. A second X-band receiving station is needed to meet the program requirement to acquire 250 scenes per day. Approval for a second station has been obtained. The station will operate near Fairbanks, Alaska and will serve as a back-up for EOS as well. The combination of the primary and back-up stations will allow for direct downlink of ETM+ data from 49 of the 50 states.

Landsat 7/EOS-AM1 memorandum of understanding (MOU): An MOU between the Landsat 7 Project and the Earth Observing System (EOS) AM1 Project has been established. The MOU specifies that the two systems will be flown in "loose formation", covering the same ground track 15-60 minutes apart. Significant benefits can be derived from this configuration including:

Level 1 processing of Landsat ETM+ data: The Landsat 7 Project is considering including systematic correction of Landsat 7 data (to a Level 1 product) as part of the ground system. Systematic correction, currently an option in the project requirements, will meet the "data continuity" mandate for Landsat 7 established in the enabling legislation for the project (PL102-555).

Dr. Williams also described the EO-1 system, the first satellite under development in the New Millennium Program and the potential integration of the results of that program in a follow instrument to the ETM+. He noted that a new Landsat science team was being formed, with the announcement of those selected likely in May.


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