Long name | Landsat data set |
Short name | LMTX |
Sensor type | Optical |
Platform | Landsat 4, Landsat 5 |
Key file name (use to open data set) | *_MTL.txt |
Supported file extensions | .txt, .tif |
Sections |
Data product name and description |
Data product name and description
Sensor | Spectral bands: |
Spatial resolution (m)* |
Notes |
---|---|---|---|
MS | 450 - 520 (Blue) |
30 | 185 km swath width |
TIRS | 10400 - 12500 (Thermal) | 30 | 185 km swath width |
* Resolution is always nadir position unless noted otherwise.
Processing level | Horizontal accuracy (m) | Description/notes |
---|---|---|
L1G/1GS | N/A | Corrected for ground. |
L1T/1TP | N/A | Corrected for ground and terrain. |
A Landsat 4-5 TM data set is organized in a specific folder structure on disk. GDB uses this folder structure and the file names to identify the data product type.
In CATALYST Professional programs, such as Focus, you can open a Landsat 4-5 TM data set in the File Selector window by selecting the *_MTL.txt file.
When opening a Landsat 4-5 TM data set, the files read by GDB are as described in the following table.
File name | Format | Required | Contents/details |
---|---|---|---|
*_MTL.txt | Text | Yes | Key file name. Use this file to open the data set. |
*.TIF | GeoTIFF | Yes | TIFF image file. Contains imagery information. |
*.ANG.txt | ASCII | No | Angle-coefficent file that provides model coefficients of the sensor-viewing angle. With this file, you can create angle bands and compute solar and sensor-viewing angles per pixel. |
Returned data for supported format
Landsat 4-5 TM data can be opened directly in its raw vendor format or imported into a PCIDSK (*.pix) file using the key file name. For optimal processing, use the PCIDSK format. The data structure, after it is opened by GDB, is as described in the following table.
Data product | Data returned | Details |
---|---|---|
Landsat 4-5 TM 30m MS | 6 x [8U] raster channels |
Blue, Green, Red, NIR, IR, SIR, Quality bands.
Note: Quality band is only available for Collection 1.
Metadata (*_MTL.txt) file |
Landsat 4-5 TM 30m TIRS | 1 x [8U] raster channel |
Thermal band.
Metadata (*_MTL.txt) file |
Landsat 4-5 TM 30m Quality |
4 x [8U] raster channels |
Quality band.
Metadata (*_MTL.txt) file |
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