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NASA Scientific Data Purchase Project: From Collection to UserNASA's Scientific Data Purchase (SDP) project is currently a $70 million operation managed by the Earth Science Applications Directorate at Stennis Space Center. The SDP project was developed in 1997 to purchase scientific data from commercial sources for distribution to NASA Earth science researchers. Our current data holdings include 8TB of remote sensing imagery consisting of 18 products from 4 companies. Our anticipated data volume is 60 TB by 2004, and we will be receiving new data products from several additional companies. Our current system capacity is 24 TB, expandable to 89 TB. Operations include tasking of new data collections, archive ordering, shipment verification, data validation, distribution, metrics, finances, customer feedback, and technical support. The program has been included in the Stennis Space Center Commercial Remote Sensing ISO 9001 registration since its inception. Our operational system includes automatic quality control checks on data received (with MatLab analysis); internally developed, custom Web-based interfaces that tie into commercial-off-the-shelf software; and an integrated relational database that links and tracks all data through operations. We've distributed nearly 1500 datasets, and almost 18,000 data files have been downloaded from our public web site; on a 10-point scale, our customer satisfaction index is 8.32 at a 23% response level. More information about the SDP is available on our Web site.
Document ID
Document Type
Preprint (Draft being sent to journal)
Nicholson, Lamar (NASA Stennis Space Center Stennis Space Center, MS, United States)
Policelli, Fritz (NASA Stennis Space Center Stennis Space Center, MS, United States)
Fletcher, Rose (Lockheed Martin Space Operations Bay Saint Louis, MS, United States)
Date Acquired
August 21, 2013
Publication Date
January 22, 2002
Subject Category
Earth Resources and Remote Sensing
Meeting Information
NASA Science Data Processing Workshop 2002(Greenbelt, MD)
Funding Number(s)
Distribution Limits
Public Use Permitted.
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