Pleiades

Long name	Pléiades
Short name	PLE
Sensor type	Optical multispectral (2 meter) and panchromatic (50 centimeter)
Platform	Pléiades satellite
Key file name (use to open dataset)	DIM*.xml
Supported file name extensions	.xml, .tif, .jpg
Sections	Data product name and description Distribution disk files Returned data for supported format References

Data product name and description

Pléiades is composed of two twin satellites operating as a true constellation on the same orbit and phased 180 degrees from each other. The Pléiades twins are very-high-resolution satellites that deliver 2 meter multispectral and 50 centimeter panchromatic products.

Note: The information provided herein is based on the data distributor's documentation cited under References.

Spectral bands: Spectral range (nm)	Spatial resolution (m)* (spectral resolution)	Maximum image dimensions (Across track x along track, km)	Notes
MS1 (Blue): 430 - 550 MS2 (Green): 500 - 620 MS3 (Red): 590 - 710 MS4 (NIR): 740 - 940 PAN (Panchromatic): 470 - 830	MS: 2 (12-bit) PAN : 0.5 (12-bit)	20 (at nadir)	Standard viewing angle: ±30 degrees Maximum viewing angle: ±47 degrees

* Resolution is always nadir position unless noted otherwise.

Pléiades data is available in the processing levels described in the following table.

Processing level	Description/notes
Primary	The Primary product is the processing level closest to the natural image acquired by the sensor. This product restores perfect collection conditions: the sensor is placed in rectilinear geometry, and the image is clear of all radiometric distortion. Rational polynomial coefficients (RPC) and the sensor model are provided with the product to ensure full autonomy and simplicity of use.
Projected	This product level is an image projected at constant altitude. By default, the image will be projected at mean altitude of the area, but the client will have the possibility to specify another altitude (useful in case of high relief difference, if the mean altitude is not representative of the area).
Standard Ortho	The Ortho product is a georeferenced image in Earth geometry, corrected from acquisition and terrain off-nadir effects. The Ortho product is produced as a standard, with fully automatic processing. You can select the spectral-band combination, bit-depth, and file format, if necessary.

Distribution disk files

Pléiades is distributed using DIMAP V2. Separate directories are included for multispectral and panchromatic data. You can open each by selecting the DIM*.xml file.

File name	Format	Required	Contents/details
DIM*.xml	Extensible Markup Language	Yes	Key file name, contains data set metadata
.tif, .jp2	Tagged Image File Format, Joint Photographic Experts Group 2000	Yes	Image data
RPC*.xml	Extensible Markup Language	Yes	Rational function model

Returned data for supported format

Pléiades data can be opened directly in its raw vendor format or imported into a PCIDSK (*.pix) file using the key file name (DIM*.xml). For optimal processing, use the PCIDSK format.

The following table describes the data structure after it is opened by GDB.

Data product	Data returned	Details
Primary Multispectral	4 x [16U] raster channels 1 x [TEX] Text segment 1 x [ORB] Orbit segment 1 x [BIN] Rational function model	Multispectral and panchromatic data must be opened separately.
Primary Panchromatic	1 x [16U] raster channel 1 x [TEX] Text segment 1 x [ORB] Orbit segment 1 x [BIN] Rational function model	Panchromatic and multispectral data must be opened separately.
Standard Ortho	1, 3, or 4 x [16U/8U] raster channels 1 x [TEX] Text segment	Number of channels and bit-depth depends on your selections when ordering data.

References

Pléiades Imagery User Guide. Astrium GEO-Information Services, France, Version 2.0, October 2012

For more information, visit: intelligence-airbusds.com