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AST_L1B V003

10.5067/ASTER/AST_L1B.003
ASTER L1B Registered Radiance at the Sensor
AST_L1B

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Level-1B (AST_L1B) Registered Radiance at the Sensor data product is radiometrically calibrated and geometrically co-registered. Application of intra-telescope and inter-telescope registration corrections for all bands are relative to the reference band for each telescope: Visible and Near Infrared (VNIR) Band 2, Shortwave Infrared (SWIR)* Band 6, and Thermal Infrared (TIR) Band 11.

Collection

Characteristic Description
Temporal Granularity Other
Temporal Extent 2000 - Present
Spatial Extent Global
File Size ~90 MB
Coordinate System Universal Transverse Mercator (UTM)
Datum WGS84
File Format HDF-EOS or GeoTIFF
Geographic Dimensions ~60 km x 60 km

 

Granule

Characteristic Description
Number of Science Dataset (SDS) Layers 15
Columns/Rows 4980 x 4200 (VNIR), 4980 x 4600 (VNIR 3B), 2490 x 2100 (SWIR), 830 x 700 (TIR)
Pixel Size 15 m (VNIR), 30 m (SWIR), and 90 m (TIR)

 

Data Layer Characteristics

SDS Name Description Units Data Type Fill Value Valid Range Scale Factor
VNIR_Band1

15 meter resolution VNIR Band 1 (0.52 to 0.60 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
VNIR_Band2

15 meter resolution VNIR Band 2 (0.63 to 0.69 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
VNIR_Band3N

15 meter resolution VNIR Band 3 (0.78 to 0.86 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
VNIR_Band3B

15 meter resolution VNIR Band 3B (0.78 to 0.86 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
SWIR_Band4

30 meter resolution SWIR Band 4 (1.600 to 1.700 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
SWIR_Band5

30 meter resolution SWIR Band 5 (2.145 to 2.185 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
SWIR_Band6

30 meter resolution SWIR Band 6 (2.185 to 2.225 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
SWIR_Band7

30 meter resolution SWIR Band 7 (2.235 to 2.285 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
SWIR_Band8

30 meter resolution SWIR Band 8 (2.295 to 2.365 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
SWIR_Band9

30 meter resolution SWIR Band 9 (2.360 to 2.430 µm)

w/m2/sr/µm 8-bit unsigned integer

N/A

0 to 255

N/A
TIR_Band10

90 meter resolution TIR Band 10 (8.125 to 8.475 µm)

w/m2/sr/µm 16-bit unsigned integer

N/A

0 to 65535

N/A
TIR_Band11

90 meter resolution TIR Band 11 (8.475 to 8.825 µm)

w/m2/sr/µm 16-bit unsigned integer

N/A

0 to 65535

N/A
TIR_Band12

90 meter resolution TIR Band 12 (8.925 to 9.275 µm)

w/m2/sr/µm 16-bit unsigned integer

N/A

0 to 65535

N/A
TIR_Band13

90 meter resolution TIR Band 13 (10.25 to 10.95 µm)

w/m2/sr/µm 16-bit unsigned integer

N/A

0 to 65535

N/A
TIR_Band14

90 meter resolution TIR Band 14 (10.95 to 11.65 µm)

w/m2/sr/µm 16-bit unsigned integer

N/A

0 to 65535

N/A

 

 

Known Issues

*Users are advised that ASTER SWIR data acquired from 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 for more details.

AST_L1B. Acquired May 21, 2017. Mt. Diablo, California.

AST_L1B. Acquired May 21, 2017. Mt. Diablo, California.

PI Name: 
U.S./Japan ASTER Science Team
Decommissioned: 
False