Band Combinations:
Pan-sharpened Color: Color
imagery is created using a pan-sharpening process that
combines a high-resolution panchromatic image with the
multispectral bands to create a 50-centimeter or 1-meter
color product. GeoEye delivers 50-centimeter or 1-meter
color imagery as either one file with three bands in true
color (red, green, blue) or false color (near infrared,
red, green); or four files of one band each (blue, green,
red, near infrared) or one file with four bands.
Multispectral: 2 or 4 meter
GSD imagery delivered as one file with three bands in true
color (red, green, blue) or false color (near infrared,
red, green); or four files of one band each (blue, green,
red, near infrared) or one file with four bands.
Panchromatic: 50-centimeter
or 1-meter resolution black and white imagery.
Bundle: Customers receive
panchromatic and multispectral imagery. GeoEye-1 and IKONOS
collect panchromatic and multispectral imagery simultaneously
to ensure radiometric and temporal consistency.
Map Projections: Universal
Transverse Mercator (UTM), Geographic (nominal ARC), Albers
Conic Equal Area (ACEA), Lambert Conformal Conic (LCC),
Transverse Mercator (TM) and State Plane projection (US
only). Customers must supply desired parameters for ACEA,
LCC, and TM projections.
Datums: Map-projected
imagery products are available in a variety of datums such
as: WGS849 (available worldwide), NAD83 and NAD2710.
Dynamic range adjustment
(DRA): Enhances the visual interpretability of the
image. If “DRA off” is selected, absolute radiometric
accuracy and full dynamic range will be preserved for scientific
applications.
Bits: Choice of
8 bit or 11-bit dynamic range.
Resampling: Cubic
convolution (also called bi-cubic) is the default resampling
method for panchromatic, multispectral, and color imagery.
Nearest neighbor resampling is available by request but not
recommended due to color anomalies that may result.
Image Format: GeoTIFF,
NITF 2.0, NITF 2.1, or NITF 2.1 with NCD11.
Stereo imagery is available in NITF or TIFF format for epipolar
imagery and NITF or GeoTIFF for map-projected imagery.
Media: DVD, CD,
External Hard Drive, electronic delivery (FTP) or Signiant
Service12.
Deliverables: Media
with data (image and support files), License, Return Policy,
Packaging list, Packaging.
Minimum Order Size: The
minimum order size for new collections is 100 square kilometers.
For archive products the minimum order size is 49 square kilometers.
All imagery product orders must be a minimum of five kilometers
wide in any direction.
Sun Angle: Solar
elevation angle from ground to sun will exceed 15°. Solar
azimuth is unrestricted. Collection geometry will avoid reflections
of the sun from water bodies into the sensor. Our satellite
orbits are sun synchronous; therefore, all imagery is collected
at approximately 10:30 AM local solar time, however not necessarily
at the same sun azimuth.
Clouds: Newly
collected imagery from IKONOS and GeoEye-1 will have less than
15% cloud cover. GeoEye uses an automated process to calculate
the percentage of cloud cover in each image collected. Additionally,
customers can designate a single coordinate within the image
that must be cloud free. The imagery delivered will be cloud-free
in a 2 km by 2 km square centered on the customer’s designated
coordinate.
Support Files & Metadata: All
GeoEye products are shipped with a text metadata file that
includes GeoEye contact information, order parameters (area
of interest, spectral bands, and coordinate system), source
image description (acquisition date, sun angles, and viewing
geometry), and product file descriptions (file names, sizes,
and coverage) and also a license file, shapefiles, TIFF, and
JPEG thumbnail with world files. Shapefiles show order area
of interest (AOI), delivery component layout, and source image
footprints with acquisition geometry. |
