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NASA Landsat Data Collection The NASA Landsat Data Collection (NLDC) contains multispectral scanner (MSS) and thematic mapper (TM) data purchased by NASA investigators. These data have been acquired from Space IMAGING EOSAT, the National Satellite Land Remote Sensing Data Archive (NSLRSDA) at the EROS Data Center (EDC), and from International Ground Stations. These data have been processed to Level-1 (systematic geometric and radiometric corrections), and the processing parameters (projection, resampling method, pixel and cell size) vary depending on what the investigator specified at the time of the data purchase. Customers that are qualified as USGAU need only complete and file this form once. There are also some scenes that were acquired for the Humid Tropical Forest Project (HTFP) that can be acquired in their original format or geographically referenced to a UTM projection (using satellite ephemeris data only) with embedded tic-marks annotated with UTM coordinates. The intent of the NLDC is to provide expedient access to data through the on-line search and order client, the Earth Observation System (EOS) Data Gateway (EDG). NLDC Status MapsThe following links provide global schematics of coverage for the NASA Landsat Data Collection by sensor. These schematics depict all data that were acquired for the NLDC project; due to certain use restrictions, some of the data depicted on these schematics are not orderable.
(To Order NLDC Data)The NLDC data are provided in the same format in which they were acquired from the data provider at the time of the initial data purchase by the NASA investigators, or in the case of HTFP "tic products," in band sequential format with an ASCII format data descriptor record (Refer to the NLDC Detailed Document).To search the geographic coverage and order the NLDC data, use the EDG. When the EDG 'Data Search and Order (Advanced)' screen is accessed, simply specify the following search parameters:
Dataset = NASA Landsat Data Collection The search can be constrained by specifying additional geographic and temporal parameters. There is additional information available for specific scenes (granules) when you display the Granule Attributes on the Granule Listing. NOTE: The NLDC data are provided in a "user beware" context which implies that the USGS User Services do not have documentation describing International Ground Stations data formats.
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