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EO-1 Image Gallery
Products
The following products and services are available:
- Data Acquisition Requests (DARs) must be submitted in order to collect a requested image for a specific area of interest. There will be a $750 service fee for tasking the sensor(s). The fee will also cover the labor required to support the scheduling, tracking and quality assessment of a DAR.
- Data Products consist of imagery collected during the original one-year technology demonstration/validation mission, as well as more recent collects from the subsequent EO-1 Extended Mission period to date.
- Level 1R is radiometrically corrected with no geometric correction applied. The image data are provided in 16-bit radiance values. The data are available in Hierarchical Data Format (HDF) and is distributed on CD-ROM, DVD, and File Transfer Protocol (FTP).
- Level 1Gst is terrain corrected and will be provided in 16-bit radiance values. The image data are available in Hierarchical Data Format (HDF) or Geographic Tagged Image-File Format (GeoTIFF) and is distributed on DVD and File Transfer Protocol (FTP).
- Level 1R is radiometrically corrected with no geometric correction applied. The image data are provided in 16-bit radiance values. The data are available in Hierarchical Data Format (HDF) and is distributed on CD-ROM, DVD, and File Transfer Protocol (FTP).
- Level 1Gs is geometrically corrected and will be provided as a single 'stitched' file. The image data are provided in 16-bit radiance values. The data are available in Hierarchical Data Format (HDF) or Geographic Tagged Image-File Format (GeoTIFF) and is distributed on DVD and File Transfer Protocol (FTP).
- Level 1Gst is terrain corrected and will be provided as a single 'stitched' file. The image data are provided in 16-bit radiance values. The data are available in Hierarchical Data Format (HDF) or Geographic Tagged Image-File Format (GeoTIFF) and is distributed on DVD, and File Transfer Protocol (FTP).
- The L1Gs product shall be accurate to within 250 meters in flat areas at mean sea level. The L1Gs product does not employ ground control or relief models to obtain absolute geodetic accuracy. Landscape parameters (elevation and relief) along with spacecraft/instrument limitations (sensor look angles, ephemeris, attitude, alignment knowledge) will impact the overall accuracy of the L1Gs product. Geometric calibrations of the satellite and sensor are on-going. As a result, the absolute geodetic accuracy may improve with future releases of the L1Gs processing system.
- The Level 1Gst product will also include terrain correction through use of a digital elevation model (DEM). This addition will correct parallax error due to topographic relief and improve the overall band-to-band registration accuracy. The elevation data used for correction consist of the Shuttle Radar Topography Mission (SRTM) 'Finished' data set and other elevation data as required.
DAR |
42-km strip |
185-km strip |
|---|---|---|
| ALI and/or Hyperion | $750 | $750 |
Hyperion data have the following levels of correction:
Advanced Land Imager (ALI) data have the following levels of correction:
Data Product |
Cost |
|---|---|
| Hyperion - radiometrically corrected (Level 1R) | $250 |
| Hyperion - terrain corrected (Level 1Gst) | $500 |
| ALI - radiometrically corrected (Level 1R) | $250 |
| ALI - geometrically corrected (Level 1Gs) | $500 |
| ALI - terrain corrected (Level 1Gst) | $500 |
Level 1Gs and Level 1Gst: Absolute Geodetic Accuracy Specification
The Level 1Gs and Level 1Gst products will be distributed with the following standardized set of processing parameters:
Map projection |
UTM (default zone of the scene center coordinates) |
Horizontal datum |
WGS84 |
Resampling method |
CC (cubic convolution) |
Image orientation |
Map (North up) |
Pixel size |
30 meter (10 meter pan band) |
Format |
HDF or GeoTIFF |
Output media |
FTP or DVD |
