AST_L1A_003

ASTER L1A Reconstructed Unprocessed Instrument Data V003

Version 003
  • Abstract
    The ASTER instrument aboard the Terra satellite has a complement of three different telescopes with varying pointing capabilities. ASTER data are primarily acquired and processed in support of a global mapping mission, and based on Data Acquisition Requests (DARs) from authorized users. ASTER Level-1 data are produced at the Ground Data System (GDS) facility of Japan Space Systems in Tokyo, Japan, and subsequently sent to the Land Processes (LP) Distributed Active Archive Center (DAAC) for archiving, distribution, and higher-level product generation. The ASTER Level-1A data set contains reconstructed, instrument digital numbers (DNs) derived from the telemetry streams of the 3 telescopes: Visible Near Infrared (VNIR), Shortwave Infrared (SWIR), and Thermal Infrared (TIR). The Level-1A data contains depacketized, demultiplexed, and realigned instrument image data with their geometric correction coefficients and radiometric calibration coefficients calculated and appended but not applied. It also includes corrections for the SWIR parallax, and intra- and inter-telescope registration information. 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_SWIR_User_Advisory_July%2018_08.pdf) for more details. V003 data set release date: 2002-05-03 Data Set Characteristics: Area: ~60km x 60km Image Dimensions: VNIR: 4200 rows x 4100 columns VNIR (3B): 5400 rows x 5000 columns SWIR: 2100 rows x 2048 columns TIR: 700 rows x 700 columns File Size: VNIR (1,2,3N): ~50 MB VNIR (3B): 30 MB SWIR (4-9): ~25 MB TIR (10-14): ~5 MB Total: 110 Megabytes Spatial Resolution: VNIR: 15m SWIR: 30m TIR: 90m Units: Digital counts Projection: Universal Transverse Mercator (UTM) Data Format: HDF-EOS, GeoTIFF Data Fields: 15
  • Version Description
    Added Associated DLL name attribute.

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    1A

    Radiometric Counts

    Quality
    Collection Progress

    In Work

    Metadata Associations
Related URLs
    Science Keywords
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • INFRARED WAVELENGTHS
    • REFLECTED INFRARED
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • INFRARED WAVELENGTHS
    • THERMAL INFRARED
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • VISIBLE WAVELENGTHS
    • VISIBLE IMAGERY

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    AM-1
    Instruments
    • ASTER

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN GEODETIC
Location Keywords

Data Centers

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  • JP/METI/AIST/JSS/GDS
    PROCESSOR
    Ground Data System, Japan Space Systems, National Institute of Advanced Industrial Science and Technology, Ministry of Economy, Trade, and Industry, Japan

    This data center does not have any contact mechanisms listed.

  • LP DAAC
    ARCHIVER
    Land Processes Distributed Active Archive Center

    U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
    Sioux Falls, 57198

    M-F, 8 a.m. to 4 p.m. Central Time
    • 605-594-6116
    • 605-594-6963
    • Email
    Contact Details

    None

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