Short Name:

AST_07XT

ASTER L2 Surface Reflectance VNIR and Crosstalk Corrected SWIR V003

The ASTER Surface Reflectance VNIR and Crosstalk Corrected SWIR (AST_07XT) dataset (https://lpdaac.usgs.gov/documents/618/ASTER_Earthdata_Search_Order_Instructions.pdf) contains measures of the fraction of incoming solar radiation reflected from the Earth’s surface to the ASTER instrument corrected for atmospheric effects and viewing geometry for both the Visible and Near Infrared (VNIR) and Shortwave Infrared (SWIR) sensors. Each product delivery includes two Hierarchical Data Format - Earth Observing System (HDF-EOS) files: one for the VNIR, and the other for the SWIR. They are distinguished from one another by a one-second difference in the production time that appears as part of the file name. Both the VNIR and SWIR data are atmospherically corrected and are generated using the bands of the corresponding (ASTER L1B) (https://doi.org/10.5067/ASTER/AST_L1B.003) image. AST_07XT is a multi-file product that contains atmospherically corrected data for both the VNIR and SWIR sensors. The crosstalk corrected product no longer displays blurred images initiated by stray light that caused multiple reflections with the SWIR bands. ASTER Level 2 data requests for observations that occurred after May 27, 2020 will resort back to using the climatology ozone input. Additional information can be found in the ASTER L2 Processing Options Update (https://lpdaac.usgs.gov/news/aster-l2-processing-options-update/). Starting June 23, 2021, radiometric calibration coefficient Version 5 (RCC V5) will be applied to newly observed ASTER data and archived ASTER data products. Details regarding RCC V5 are described in the following journal article. Tsuchida, S., Yamamoto, H., Kouyama, T., Obata, K., Sakuma, F., Tachikawa, T., Kamei, A., Arai, K., Czapla-Myers, J.S., Biggar, S.F., and Thome, K.J., 2020, Radiometric Degradation Curves for the ASTER VNIR Processing Using Vicarious and Lunar Calibrations: Remote Sensing, v. 12, no. 3, at https://doi.org/10.3390/rs12030427.

Overview Download Data Services Tools Citation Information Documentation Additional Information

Science Keywords:

Spatial Extent:

Bounding Rectangle:

N: 90.0 S: -90.0 E: 180.0 W: -180.0

Data Format(s):

Distribution: HDF-EOS2

Temporal Extent:

2000-03-06 to now

Platform(s):

Terra

Data Center(s):

LP DAAC

Instrument(s):

ASTER

Version:

003

Download Options

LPDAAC_ECS_ECHO_ORDERS View Service Record
Type: ECHO ORDERS
Description: LPDAAC_ECS EOSDIS ECHO ORDERS Service Implementation

This collection does not have any associated tools at this time.

Title: ASTER On-Demand L2 Surface Reflectance VNIR and SWIR Crosstalk-Corrected
Creator: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team
Publisher: NASA EOSDIS Land Processes DAAC
Release Date: 2006-10-13T00:00:00.000Z
Other Citation Details: The DOI landing page provides citations in APA and Chicago styles.
Linkage: https://doi.org/10.5067/ASTER/AST_07XT.003

DOI

10.5067/ASTER/AST_07XT.003

https://doi.org

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://lpdaac.usgs.gov/documents/68/AST_07_ATBD.pdf, The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products.
USER'S GUIDE: https://lpdaac.usgs.gov/documents/69/AST_L1_User_Guide_V3.pdf, ASTER Level-1 User Guide
USER'S GUIDE: https://lpdaac.usgs.gov/documents/67/AST_07_User_Guide_V3.pdf, ASTER Higher-Level Product User Guide
GENERAL DOCUMENTATION: https://lpdaac.usgs.gov/documents/175/ASTER_L1_Product_Specifications.pdf, The ASTER Level-1T Product Specification provides a description of the data file.
HOW-TO: https://lpdaac.usgs.gov/documents/996/ASTER_Earthdata_Search_Order_Instructions.pdf, ASTER Order Instructions
USER'S GUIDE: https://lpdaac.usgs.gov/documents/1010/ASTER_User_Handbook_v3.pdf, The ASTER User Handbook provides in depth information on ASTER data products.

Version Description
Not provided
Search for granules from this collection

Processing Level

ASTER On-Demand L2 Surface Reflectance VNIR and SWIR Crosstalk-Corrected

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/documents/217/ASTER_SWIR_User_Advisory_July_18_08.pdf) for more details.

Collection Progress
Active
Use Constraints
See https://lpdaac.usgs.gov/data/data-citation-and-policies/ for redistribution and citation policies.
Access Constraints

See https://lpdaac.usgs.gov/data/data-citation-and-policies/ for data access information.

Publication References

Title: Publication reference title not provided

Online Resource: Not provided

Related URLs

Ancillary Keywords

LP DAAC
EOSDIS
USGS/EROS
ESIP
USGS
LPDAAC

ISO Topic Categories

climatologyMeteorologyAtmosphere
geoscientificInformation

Additional Attributes

Name: DAR_ID INT Description: ID of the Data Acquisition Request
Name: GenerationDateandTime DATETIME_STRING Description: Date and Time granule produced
Name: LowerLeftQuadCloudCoverage INT Description: The percentage of cloud coverage for the lower left quadrant
Name: LowerRightQuadCloudCoverage INT Description: The percentage of cloud coverage for the lower right quadrant
Name: SceneCloudCoverage INT Description: Percentage of cloud coverage for the whole scene
Name: Solar_Azimuth_Angle FLOAT Description: Angle of the sun clockwise from true North
Name: Solar_Elevation_Angle FLOAT Description: Angle of the sun above the horizon
Name: UpperLeftQuadCloudCoverage INT Description: The percentage of cloud coverage for the upper left quadrant
Name: UpperRightQuadCloudCoverage INT Description: The percentage of cloud coverage for the upper right quadrant
Name: Band4_Available STRING Description: Identifies the status of Band 4 - [Yes, band is acquired] or [No, band was not acquired]
Name: Band5_Available STRING Description: Identifies the status of Band 5 - [Yes, band is acquired] or [No, band was not acquired]
Name: Band6_Available STRING Description: Identifies the status of Band 6 - [Yes, band is acquired] or [No, band was not acquired]
Name: Band7_Available STRING Description: Identifies the status of Band 7 - [Yes, band is acquired] or [No, band was not acquired]
Name: Band8_Available STRING Description: Identifies the status of Band 8 - [Yes, band is acquired] or [No, band was not acquired]
Name: Band9_Available STRING Description: Identifies the status of Band 9 - [Yes, band is acquired] or [No, band was not acquired]
Name: RadiometricDBVersion STRING Description: The version number of the Radiometric Database used in Level 1 processing.
Name: GeometricDBVersion STRING Description: The version number of the Geometric Database used in Level 1 processing.
Name: ASTERGains STRING Description: Identifies the Gain setting for the Bands: HGH, NOR, LO1, LO2, LOW, OFF
Name: ASTERGRANULEID STRING Description: Unique identifier for the data granule held at the ASTER GDS
Name: ASTERProcessingCenter STRING Description: Name of the center where these ASTER data were processed
Name: ASTERVNIRPointingAngle FLOAT Description: Specifies the pointing angle of the ASTER Visible Near Infrared (VNIR) sensor
Name: ASTERSWIRPointingAngle FLOAT Description: Specifies the pointing angle of the ASTER Shortwave Infrared (SWIR) sensor

Name: ASTERMapOrientationAngle FLOAT Description: Denotes the angle between the path oriented image and the map oriented image for this ASTER scene.

Resolution	Range Begin	Range End	Unit of Measure	Accuracy
	-180.0	180.0

Name: ASTERReceivingCenter STRING Description: Name of the center where these ASTER data were received

Name: ASTERSceneOrientationAngle FLOAT Description: Denotes the azimuth angle made by the meridian at the ASTER scene center and the along-track direction, rotating from North toward East.

Resolution	Range Begin	Range End	Unit of Measure	Accuracy
	0.0	180.0

Name: source_granule_ur STRING Description: Granule-ur of the source granule
Name: metadata.uuid STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: metadata.extraction_date STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: metadata.keyword_version FLOAT Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: DIF9.0-to-DIF10-Converter STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: Discipline STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: IDN_Node.Short_Name STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: IDN_Node.UUID STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: Original.Dataset_Citation.DOI STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: Original.Metadata_Version STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: Original.Dataset_Language STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: Original.xsi:schemaLocation STRING Description: Not provided

Group: gov.nasa.gsfc.gcmd
Name: identifier_product_doi STRING Description: Digital object identifier that uniquely identifies this data product
Name: identifier_product_doi_authority STRING Description: URL of the digital object identifier resolving authority

Projects

Project Short Name	Campaigns	Project Dates
Terra	Terra	No dates provided.

Coverage Type	Zone Identifier	Geometry	Granule Representation
HORIZONTAL		CARTESIAN	GEODETIC

Resolution and Coordinate System

Horizontal Data Resolution

Varies Resolution
- Varies
Generic Resolutions
- Generic Resolution 1
  X Dimension
  15.0 Meters
  Y Dimension
  15.0 Meters
- Generic Resolution 2
  X Dimension
  30.0 Meters
  Y Dimension
  30.0 Meters

Location Keywords

- GEOGRAPHIC REGION
- GLOBAL

LP DAAC
ARCHIVER

Land Processes Distributed Active Archive Center
- U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
  Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time

605-594-6116

866-573-3222

Email
Contact Details
LP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/

Home Page

LP DAAC User Services
User Services

LP DAAC User Services
LP DAAC
- U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
  Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time

605-594-6116

866-573-3222

Email
Contact Details
LP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/

Home Page

Metadata Dates

Creation	2013-11-27T00:00:00.000Z
Last Revision	2021-10-08T17:42:00.000Z

File Distribution Information

Format: HDF-EOS2

Format Type: Native

Format Description: Hierarchical Data Format - Earth Observing System Version 2

Media: https

Average File Size: 94.0 MB

Total Collection File Size Begin Date: 2000-03-04T00:00:00.000Z

There is no direct distribution information for this collection.

CMR Search

ASTER L2 Surface Reflectance VNIR and Crosstalk Corrected SWIR V003

Collection Information

Data Identification

Publication References

Related URLs

Other Descriptive Keywords

Ancillary Keywords

ISO Topic Categories

Additional Attributes

Acquisition Information

Projects

Temporal Information

Spatial Information

Resolution and Coordinate System

Horizontal Data Resolution

Varies Resolution

Generic Resolutions

Generic Resolution 1

Generic Resolution 2

Location Keywords

Data Centers

LP DAAC

Land Processes Distributed Active Archive Center

Data Contacts

LP DAAC User Services

LP DAAC User Services

Metadata Dates

Archive And Distribution Information

File Distribution Information