Import RapidEye Products

Import RapidEye Products

This command allows to import the data of RapidEye products in GeoTIFF format. RapidEye Satellite Imagery Products are offered at three different processing types to support the varied needs of the customer:

• RapidEye Basic (Level 1B) products are sensor level products with a minimal amount of processing (geometrically uncorrected) for customers who prefer to geo-correct the images themselves;
• RapidEye Ortho (Level 3A) are orthorectified tile products with radiometric, geometric and terrain corrections in a map projection;
• RapidEye Ortho Take (Level 3B) are orthorectified, bundle adjusted image takes that are larger than the Level 3A products.

For more details please see: RapidEye Product Guide

RapidEye System Mission Characteristics are outlined in the next table.

RAPIDEYE BASIC – LEVEL 1B PRODUCT SPECIFICATION

The RapidEye Basic product is the least processed of the available RapidEye image products. This product is designed for customers with advanced image processing capabilities and a desire to geometrically correct the product themselves.

The RapidEye Basic product is radiometric and sensor corrected, providing imagery as seen from the spacecraft without correction for any geometric distortions inherent in the imaging process, and is not mapped to a cartographic projection. The imagery data is accompanied by all spacecraft telemetry necessary for the processing of the data into a geo-corrected form, or when matched with a stereo pair, for the generation of digital elevation data. Resolution of the images is 6.5 meters GSD at nadir. The images are resampled to a coordinate system defined by an ideal basic camera model for band alignment.

RapidEye Basic image product consists of the following file components:

• Image File – Image product delivered as a group of single-band NITF 2.0 or GeoTIFF files with associated RPC values. Bands are co-registered.
• Metadata File – XML format metadata file. Metadata file contains additional information related to spacecraft attitude, spacecraft ephemeris, spacecraft temperature measurements, line imaging times, camera geometry, and radiometric calibration data.
• Browse Image File – GeoTIFF format
• Unusable Data Mask (UDM) file – GeoTIFF format

RAPIDEYE ORTHO – LEVEL 3A PRODUCT SPECIFICATION

The RapidEye Ortho product offers RapidEye Satellite imagery orthorectified as individual 25 by 25 kilometer tiles. This product was designed for a wide variety of applications that require imagery with an accurate geolocation and cartographic projection. It has been processed to remove distortions caused by terrain and can be used for many cartographic purposes.

The RapidEye Ortho product is radiometric, sensor and geometrically corrected and aligned to a cartographic map projection. The geometric correction uses fine DEMs with a post spacing of between 30 and 90 meters. Ground Control Points (GCPs) are used in the creation of every image and the accuracy of the product will vary from region to region based on available GCPs. RapidEye Ortho image products are output as 25 by 25 kilometer tiles referenced to a fixed, standard RapidEye image tile grid system (see Appendix B). All Ortho image products (Level 3A) are black-filled 1000 meters (200 pixels) beyond the order polygon used to place the product order, except for when the order is tile-based. The Browse Image and Unusable Data Mask (UDM) files of an Ortho product show the full extent of valid imagery available for the given image tile regardless of the black-fill applied to an order.

RapidEye Ortho image product consists of the following file components:

• Image File – GeoTIFF file that contains image data and geolocation information
• Metadata File – XML format metadata file
• Browse Image File – GeoTIFF format
• Unusable Data Mask (UDM) file – GeoTIFF format

RAPIDEYE ORTHO TAKE– LEVEL 3B PRODUCT SPECIFICATION

The RapidEye Ortho Take product extends the usability of orthorectified RapidEye products by leveraging full image takes and adjusts multiple images together to cover larger areas with fewer files. These products are radiometric, sensor and geometrically corrected and aligned to a cartographic map projection. The geometric correction uses fine DEMs with a post spacing of between 30 and 90 meters. Ground Control Points (GCPs) and DEM are used in the creation of every image.

Multiple images may be used to cover the desired order polygon and those images will be bundle adjusted together before orthorectification, but each image will be produced and delivered as a separate standalone file with no mosaicking or color balancing being performed.

RapidEye Ortho Take image product consists of the following file components:

• Image File – GeoTIFF file that contains image data and geolocation information
• Metadata File – XML format metadata file.
• Browse Image File – GeoTIFF format
• Unusable Data Mask (UDM) file – GeoTIFF format

PRODUCT NAMING

The naming of RapidEye Satellite Imagery Products provides important information related to the image. The naming of the product depends on the product type and is different between the product levels. The name of each product is designed to be unique and allow for easier recognition and sorting of the imagery.

1B – BASIC PRODUCT NAMING

The information provided in the 1B – Basic product name includes acquisition date and time, satellite that acquired the image, product level, product description, product and order identification and file type with format. The name of each 1B product is composed of the following elements:

<acquisition time>_<satellite>_<product ID>_<RE catalog ID>_<order number>_ <file type>.<file extension>

For example:
1B Product File Name = 2008-10-26T012345_RE3_1B-NAC_0123456789_9876543210_band1.ntf
where:

The expected values for the satellite, product ID (processing level + product description), file type and file extension fields are listed below:

3A – ORTHO PRODUCT NAMING

The information provided in the 3A – Ortho product name includes acquisition date, RapidEye Tile ID, satellite that acquired the image, processing level, order identification and file type with format. The name of each 3A product is composed of the following elements:

<RapidEye Tile ID>_<acquisition date>_<satellite>_<processing level>_ <order number>.<file extension>

For example:
3A Product File Name = 3949726_ 2012-01-16_RE3_3A_9876543210.tif
where:

The expected values for the satellite, processing level, file type and file extension fields are listed below:

3B – ORTHO TAKE PRODUCT NAMING

The information provided in the 3B – Ortho Take product name includes acquisition date and time, satellite that acquired the image, product level, product description, product and order identification and file format. The name of each 3B product is composed of the following elements:

<acquisition time>_<satellite>_<product ID>_<RE catalog ID>_<order number>_ <file type>.<file extension>

For example:
3B Product File Name = 2008-10-26T012345_RE3_3B-NAC_0123456789_9876543210.tif
where:

The expected values for the satellite, product ID (processing level + product description), file type and file extension fields are listed below: