ASTER L1T Radiance (ASTER/AST_L1T_003)

Version V003

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER)
is a multispectral imager that was launched on board NASA’s Terra spacecraft
in December, 1999. ASTER can collect data in 14 spectral bands from the
visible to the thermal infrared. Each scene covers an area of 60 x 60 km.
These scenes, produced by the USGS, contain calibrated at-sensor radiance,
ortho-rectified and terrain corrected.

Not all 14 bands were collected in each scene. An asset property named
ORIGINAL_BANDS_PRESENT contains the list of bands that are present in each
scene.

To convert from Digital Numbers (DN) to radiance at the sensor, the unit
conversion coefficients are available in the metadata. See
ASTER L1T Product Users’ Guide
and ASTER L1T Product Specification
for more information.

NameDescriptionGee WavelengthGSD (m)
B01VNIR_Band1 (visible green/yellow)0.520-0.600µmmeters
B02VNIR_Band2 (visible red)0.630-0.690µmmeters
B3NVNIR_Band3N (near infrared, nadir pointing)0.780-0.860µmmeters
B04SWIR_Band4 (short-wave infrared)1.600-1.700µmmeters
B05SWIR_Band5 (short-wave infrared)2.145-2.185µmmeters
B06SWIR_Band6 (short-wave infrared)2.185-2.225µmmeters
B07SWIR_Band7 (short-wave infrared)2.235-2.285µmmeters
B08SWIR_Band8 (short-wave infrared)2.295-2.365µmmeters
B09SWIR_Band9 (short-wave infrared)2.360-2.430µmmeters
B10TIR_Band10 (thermal infrared)8.125-8.475µmmeters
B11TIR_Band11 (thermal infrared)8.475-8.825µmmeters
B12TIR_Band12 (thermal infrared)8.925-9.275µmmeters
B13TIR_Band13 (thermal infrared)10.250-10.950µmmeters
B14TIR_Band14 (thermal infrared)10.950-11.650µmmeters

Providers

NASA LP DAAC at the USGS EROS Center (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.0
Keywords aster, eos, imagery, nir, radiance, swir, terra, thermal, tir, toa, usgs, vnir
License proprietary
Temporal Extent 3/3/2000, 4:00:00 PM - now
DOI https://doi.org/10.5067/ASTER/AST_L1T.003
Citation Please visit [LP DAAC 'Citing Our Data' page](https://lpdaac.usgs.gov/citing_our_data) for information on citing LP DAAC datasets.
Type image_collection
Platform Terra
Instrument ASTER
gee:revisit_interval days
Asset schema {"name":"BAD_PIXELS_B01","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B02","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B03","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B04","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B05","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B06","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B07","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B08","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B09","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B10","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B11","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B12","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B13","description":"Number of bad pixels","type":"DOUBLE"},{"name":"BAD_PIXELS_B14","description":"Number of bad pixels","type":"DOUBLE"},{"name":"CLOUDCOVER","description":"Cloud coverage","type":"DOUBLE"},{"name":"COARSE_DEM_DATE","description":"Coarse DEM issuance date","type":"STRING"},{"name":"COARSE_DEM_NOTE","description":"Coarse DEM comments","type":"STRING"},{"name":"COARSE_DEM_VERSION","description":"Coarse DEM version number","type":"STRING"},{"name":"FLYING_DIRECTION","description":"The satellite flight direction when observation is done: 'AS' - ascending\ndirection, 'DE' - descending direction\n","type":"STRING"},{"name":"GAIN_COEFFICIENT_B01","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B02","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B03","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B04","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B05","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B06","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B07","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B08","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B09","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B10","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B11","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B12","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B13","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_COEFFICIENT_B14","description":"Coefficient used for radiance conversion","type":"DOUBLE"},{"name":"GAIN_SETTING_B01","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B02","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B03","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B04","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B05","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B06","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B07","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B08","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B09","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B10","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B11","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B12","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B13","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GAIN_SETTING_B14","description":"Band gain setting: 'HGH' - high, 'NOR' - normal, 'LOW' - low, 'LO1'\n- low 1, or 'LO2' - low 2\n","type":"STRING"},{"name":"GCP_CHIPS_CORRELATED","description":"How many chips correlated during correlation statistics creation","type":"DOUBLE"},{"name":"GEOMETRIC_DB_DATE","description":"Geometric correction data issuance date","type":"STRING"},{"name":"GEOMETRIC_DB_VERSION","description":"Geometric correction data version number","type":"STRING"},{"name":"GRANULE_REPROCESSING","description":"What reprocessing has been performed on the granule: 'not reprocessed',\n'reprocessed once', 'reprocessed twice', or 'reprocessing n times'\n","type":"STRING"},{"name":"ORBIT_NUMBER","description":"The orbit number of the satellite when data is acquired","type":"DOUBLE"},{"name":"ORIGINAL_BANDS_PRESENT","description":"List of bands that are present in each scene","type":"DOUBLE"},{"name":"PGE_VERSION","description":"The version of PGE","type":"STRING"},{"name":"PRODUCTION_TIME","description":"Generation time of this product","type":"DOUBLE"},{"name":"QA_PERCENT_INTERPOLATED_DATA","description":"The percentage of interpolated data in the scene","type":"DOUBLE"},{"name":"QA_PERCENT_MISSING_DATA","description":"The percentage of missing data in the scene","type":"DOUBLE"},{"name":"QA_PERCENT_OUT_OF_BOUNDS_DATA","description":"The percentage of out of bounds data in the scene","type":"DOUBLE"},{"name":"RADIOMETRIC_DB_DATE","description":"Radiometric correction data issuance date","type":"STRING"},{"name":"RADIOMETRIC_DB_VERSION","description":"Radiometric correction data version number","type":"STRING"},{"name":"RESAMPLING_METHOD_B01","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B02","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B03","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B04","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B05","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B06","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B07","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B08","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B09","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B10","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B11","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B12","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B13","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"RESAMPLING_METHOD_B14","description":"Resampling method: 'BL', 'NN', or 'CC'\n","type":"STRING"},{"name":"SATELLITE_RECURRENT_CYCLENUMBER","description":"The satellite recurrent cycle number","type":"DOUBLE"},{"name":"SATELLITE_REVOLUTION_NUMBER","description":"The satellite revolution number in the cycle","type":"DOUBLE"},{"name":"SCENE_PATH","description":"Scene path","type":"DOUBLE"},{"name":"SCENE_ROW","description":"Scene row","type":"DOUBLE"},{"name":"SCENE_VIEW","description":"Scene view","type":"DOUBLE"},{"name":"SOLAR_AZIMUTH","description":"Sun direction as seen from the scene center; azimuth angle in degrees measured eastward from North (0.0<az<360)","type":"DOUBLE"},{"name":"SOLAR_ELEVATION","description":"Sun direction as seen from the scene center; elevation angle in degrees (-90.0<el<90.0)","type":"DOUBLE"},{"name":"SOURCE_DATA_GRANULE","description":"ID of input AST_L1A data granule used for generating this product","type":"STRING"},{"name":"SWIR_POINTING_ANGLE","description":"Pointing angle in degrees","type":"DOUBLE"},{"name":"TIR_POINTING_ANGLE","description":"Pointing angle in degrees","type":"DOUBLE"},{"name":"VNIR_POINTING_ANGLE","description":"Pointing angle in degrees","type":"DOUBLE"}