ASTER L1B Registered Radiance at the Sensor
Entry ID: AST_L1B

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Summary
Abstract: The ASTER Level-1B Registered Radiance at the Sensor product contains radiometrically calibrated and geometrically co-registered data for the acquired channels of the three different telescopes of Level-1A data. The Level-1B data set is produced by applying the radiometric calibration and geometric correction coefficients to the Level-1A. Both intra-telescope and inter-telescope registration correction for all the Bands are accomplished relative to the reference Band for each sub-system (Bands 2, 6, and 11). The Level-1B radiance data set offers the same number of Bands at the same resolution as the Level-1A, and provides the input for generating a number of derived Level-2 geophysical products.

V002 data set release date: 2000-11-10
V003 data set release date: 2002-05-03
The key determinants between these versions are the use of a newer algorithm with an improved set of radiometric calibration and geometric correction coefficients databases in version 003.

Data Set Characteristics:
Area: ~60 km x 60 km
Image Dimensions:
VNIR: 4200 rows x 4980 columns
VNIR (3B): 4600 rows x 4980 columns
SWIR: 2100 rows x 2490 columns
TIR: 700 rows x 830 columns
File Size:
VNIR (1,2,3N): ~60 MB
VNIR (3B): ~22 MB
SWIR (4-9): ~30 MB
Total: 118 Megabytes
Units: w/m2/sr/┬Ám
Projection: Universal Transverse Mercator (UTM)
Data Format: HDF-EOS, GeoTIFF
Vgroup Data Fields: 15

Related URL
Link: GET DATA > REVERB
Description: Interface to search, discover, and access EOS data products, and invoke available data services.


Link: GET DATA > ON-LINE ARCHIVE
Description: LP DAAC Data Pool provides direct access to all currently available MODIS products and the ability to download them via FTP.


Link: GET DATA
Description: USGS EarthExplorer (EE) provides users the ability to query, search and order archived ASTER and MODIS products available from the LP DAAC. Registered users of EE have access to additional features than guest users.


Link: GET DATA
Description: The USGS Global Visualization Viewer (GloVis) is an online search and order tool driven by browse images. Users may select any geographical area of interest (for any given product) and view all available browse images for that area before deciding to order those products.


Link: VIEW PROJECT HOME PAGE
Description: The Land Processes Distributed Active Archive Center (LP DAAC) is one of several discipline-specific data centers within the NASA Earth Observing System Data and Information System (EOSDIS). The LP DAAC Web page provides information about available data products, services, documentation, order interfaces, and tools.


Link: VIEW PROJECT HOME PAGE
Description: The ASTER home page is maintained through NASA's Jet Propulsion Laboratory and documents various aspects of the ASTER mission.


Link: VIEW RELATED INFORMATION
Description: Detailed product descriptions and additional information including links for data access, user guides, and customer support, etc.


Geographic Coverage
 N: 83.0 S: -83.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: Land Processes Distributed Active Archive Center (LP DAAC)
Dataset Title: ASTER L1B Registered Radiance at the Sensor
Dataset Release Date: 2000-11-10
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological Survey
Version: V002, V003
Online Resource: https://lpdaac.usgs.gov


Temporal Coverage
Start Date: 2000-03-04


Location Keywords
GEOGRAPHIC REGION > GLOBAL LAND


Data Resolution
Latitude Resolution: 90m
Longitude Resolution: 90m


Science Keywords
SPECTRAL/ENGINEERING >INFRARED WAVELENGTHS >REFLECTED INFRARED    [Definition]
SPECTRAL/ENGINEERING >INFRARED WAVELENGTHS >THERMAL INFRARED    [Definition]
SPECTRAL/ENGINEERING >VISIBLE WAVELENGTHS >VISIBLE IMAGERY    [Definition]
SPECTRAL/ENGINEERING >VISIBLE WAVELENGTHS >VISIBLE RADIANCE    [Definition]


ISO Topic Category
IMAGERY/BASE MAPS/EARTH COVER


Platform
TERRA >Earth Observing System, TERRA (AM-1)    [Information]


Instrument
ASTER >Advanced Spaceborne Thermal Emission and Reflection Radiometer    [Information]


Project
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]
CWIC >CEOS WGISS Integrated Catalog    [Information]


Quality
Users are advised that ASTER SWIR data acquired from late April 2008 to the present exhibit anomalous saturation of values and anomalous striping. This effect is also present for some prior acquisition periods. Please refer to the ASTER SWIR User Advisory Document (https://lpdaac.usgs.gov/sites/default/files/public/aster/docs/ASTER...) for more details.


Access Constraints
See https://lpdaac.usgs.gov/customer_service/aster_access_notice for data access information.


Use Constraints
See https://lpdaac.usgs.gov/products/aster_policies for redistribution and citation policies.


Keywords
LP DAAC
EOSDIS
USGS/EROS
ESIP
USGS
LPDAAC
Near Real Time (NRT)


Data Set Progress
IN WORK


Originating Center
USGS/EROS


Data Center
Land Processes Distributed Active Archive Center    [Information]
Data Center URL: https://lpdaac.usgs.gov/
Dataset ID: AST_L1B

Data Center Personnel
Name: LP DAAC USER SERVICES
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
Contact Address:
LP DAAC User Services
U.S. Geological Survey (USGS)
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA



Distribution
Distribution_Media: HTTP
Distribution_Size: 118 MB
Distribution_Format: HDF-EOS, GeoTIFF


Personnel
LP DAAC USER SERVICES
Role: TECHNICAL CONTACT
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
Contact Address:
LP DAAC User Services
U.S. Geological Survey (USGS)
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA


Publications/References
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) publication references: [available online at http://asterweb.jpl.nasa.gov/asterbiblio20120719.pdf]

National Aeronautics and Space Administration, revised 2006, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 261 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/sites/default/files/publications/2006Re...].

Creation and Review Dates
DIF Creation Date: 2002-05-29
Last DIF Revision Date: 2013-08-26

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