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GeoEye High Resolution Imagery


GeoEye High Resolution Imagery Solutions for Alaska SDMI Tara Byrnes GeoEye 703-480-4602 Statewide Digital Mapping Initiative – PowerPoint PPT presentation

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Title: GeoEye High Resolution Imagery

  • GeoEye High Resolution Imagery
  • Solutions for Alaska SDMI
  • Tara Byrnes
  • GeoEye
  • 703-480-4602
  • Statewide Digital Mapping Initiative
  • Imagery Workshop

  • Topics of the Day

GeoEye Agenda
  • GeoEye Overview
  • Questions Answered
  • Final Thoughts
  • Questions

  • GeoEye is a leading producer of high resolution
    satellite, aerial and geospatial information
  • Core Capabilities
  • 3 remote-sensing satellites
  • 3 aircraft with digital mapping capability and
  • Advanced geospatial imagery processing capability
  • Worlds largest satellite image archive gt 350
    million sq km
  • International network of regional ground
    stations, including Barrow and Fairbanks,Alaska,
    to directly task, receive and process high
    resolution imagery
  • GeoEye delivers high quality satellite imagery
    and products to better map, measure and monitor
    the world

What we do
  • Tasking of two HiRES Satellites
  • Large archive of HiRES imagery available for
    search and discovery
  • Deliver solutions to satisfy a wide variety of
    mapping and analysis applications
  • Respond to specific customer requirements with
    custom tasking and collection

SDMI Questionnaire
  • Questions Answered

Available Sensors
  • Two currently operating, highly capable
    commercial remote sensing satellites, IKONOS and
  • Substantial existing global ground segment
  • Four distinct ground terminals, including
    communications uplink/downlink stations in Barrow
    and Fairbanks, Alaska, and operations centers in
    Virginia and Colorado
  • Rapid collection, downlink processing,
    production, storage and archive, and access and

  • GeoEye-1 launched on September 6, 2008
  • Next-generation satellite with the highest
    resolution and most advanced collection
    capabilities of any commercial imaging satellite
  • GeoEye-1 offers unprecedented spatial resolution
    by simultaneously acquiring 0.41-meter
    panchromatic and 1.64-meter multispectral imagery
  • Imagery from the panchromatic and multispectral
    sensors can be merged to create 0.5 meter color
    imagery (pan-sharpened) products
  • It can collect 700,000 square kilometers (sqkm)
    of panchromatic imagery (350,000 square
    kilometers in multi-spectral) in a single day,
    downlink imagery in real-time to ground stations,
    and can store 1.0 terabits of data on its
    solid-state recorders

  • Worlds first commercial satellite to collect
    black-and-white (panchromatic) images with
    0.82-meter resolution and multispectral imagery
    with 3.28-meter resolution
  • Imagery from the panchromatic and multispectral
    sensors can be merged to create 0.82-meter color
    imagery (pan-sharpened)
  • IKONOS has collected more than 320 million square
    kilometers of imagery over every continent
  • From a 423-mile high orbit, IKONOS has a revisit
    time of once every three days and downlinks
    directly to more than a dozen ground stations
    around the globe

Performance Parameter IKONOS GeoEye1
Altitude 681 km 681 km
Inclination 98.1 / sun sync 98.1 / sun sync
Orbit Duration 98 minutes 98 minutes
Equatorial Crossing Time 1030 am 1030 am
Revisit at best NIIRS 3 days 3 days
Off Nadir (Terrestrial) Imaging 60 degrees 60 degrees
Image Quality    
Spatial Resolution Pan 0.82 m _at_ nadir MSI 3.2 m _at_ nadir Pan 0.41 m _at_ nadir MSI 1.65 m _at_ nadir
Imaging Bands 1 Pan / 4 MSI 1 Pan / 4 MSI
Spectral Range Pan 526929 nm MSI 1 (B) 445516 nm MSI 2 (G) 506595 nm MSI 3 (R) 632698 nm MSI 4 (NIR) 757853 nm Pan 450800 nm MSI 1 (B) 450510 nm MSI 2 (G) 510580 nm MSI 3 (R) 655690 nm MSI 4 (NIR) 780920 nm
Bits/Pixel 11-bits/pixel 11-bits/pixel
Minimum Image Size 121 sqkm 231 sqkm
Time Delay Integration 32 stages (selectable) 64 stages (selectable)
Best GSD _at_ nadir 0.82 meters 0.41 meters
NIIRS 4.5 5.5
Collection Capacity    
Daily Pan Area 300,000 sqkm 700,000 sqkm
Daily MSI Area 300,000 sqkm 350,000 sqkm
Swath Width _at_ nadir 11.3 km 15.2 km
On-Board HSSU Capacity (store dump) 80-gigabits 1-terabit
Mono CE90 w/out external GCPs lt15 meters lt5 meters
Stereo CE90 / LE90 w/out external GCPs 10 meters / 10 meters 4 meters / 6 meters
Design Life 5 years 7 years
Expected In-service Life 10 years 10 years
  • IKONOS and GeoEye-1 both are built to paint a
    target area
  • Based on the average scene size each can collect
    (4,000 sqkm for IKONOS and 5,100 sqkm for
    GeoEye-1), total capacity is quite large
  • Combined capability up to 650,000 square
    kilometers per day in multispectral mode and even
    more area in panchromatic only

IKONOS Bi-Directional Scanning
GeoEye-1 Bi-Directional Scanning
Quality and Access
  • Two key points to satisfy the SDMI requirements
    (to be defined)
  • Image quality is essentially dependent on three
    factors sensor performance, ground processing,
    and quality assurance
  • ISO 90012000 certification provides a foundation
    to control and measure performance against these
  • GeoEye-1 delivers NIIRS 5.7 imagery and IKONOS
    delivers NIIRS 4.5 imagery
  • This constellation affords the SDMI access to a
    high capacity constellation with global access to
    virtually any location on the Earth
  • Operating in a polar, sun-synchronous orbit, each
    satellite will orbit the earth approximately 15
    times per day with 3-4 passes per day over Alaska

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Product Offerings
  • GeoEye recommends our GeoProfessional product at
    10-meter CE90
  • Ortho-rectified using proprietary processes
    perfected in our production facilities and
    optimized for the data collected by both sensors
  • Available in two levels of accuracy allowing
    delivery of the most suitable and precise terrain
    corrected color products
  • Precision level product is available in a key
    areas at 4-meters CE90, but requires more
    accurate terrain models and ground control
  • Perfect product for projects requiring
    high-resolution and medium-scale accuracy when
    ground control can be costly and/or very
    difficult to acquire, such as in many parts of
  • Available in multiple band combinations
    panchromatic, 4-band multi-spectral (red, green,
    blue and near-infrared), and pan-sharpened(color)
  • GeoProfessional meets an accuracy specification
    of 15-meters CE90 at 1 meter and 10-meters CE90
    at 0.5 meter. Available in both 8-bit and 11-bit
  • Both sensors have the unique capability to do
    same pass stereo collection, which allows for
    both images in the pair to be collected at the
    same time maintaining consistent environmental
    conditions in both images
  • Stereo products are so accurate that they
    suitable for use as control for other sensor data
    in remote Alaska areas

  • Land Management
  • Environmental Analysis
  • Land Classification
  • Change Detection
  • Emergency Response
  • Disaster Management
  • Aviation Safety

Horizontal Accuracy
  • Native Horizontal Accuracy GeoEye-1 image
    accuracy is 5-meter CE90 (5.7-meter CE95). IKONOS
    image accuracy is specified at 15-meter CE90
    (17-meter CE95), but operational tests show
    actual performance is 7-meter CE 90 (8-meter
    CE95). RPC data is provided with Geo and Stereo
    products at no extra cost
  • Improved Horizontal Accuracy GeoEye image
    accuracy can approach the accuracy of the applied
    ground control, limited only by pixel resolution.
    With suitable GCP, IKONOS image accuracy is
    2-meter CE95 and GeoEye-1 is 1-meter CE95. These
    image accuracies are at nadir, and thus, exclude
    terrain displacement due to DEM errors

Horizontal Control Distribution
  • As control is only necessary for the 4-meter CE90
    product, GeoEye does not anticipate the need for
    ground control points to meet Alaska SDMI
  • However, for the Precision products, we space
    ground control approximately every 50 km down the
    length of each image strip
  • Control points located in the strip overlap areas
    reduce costs. GeoEye can obtain ground control
    points (GCP) or accept them as Customer Furnished
  • We do not, however, anticipate needing GCP for
    the GeoProfessional ortho-image products we
    propose to deliver for the current requirements

DEM Requirement
  • To achieve the SDMI specification of 124,000
    NMAS (12.2 meters CE90), GeoEye would require a
    DEM of 19-meters LE90 or better

Ortho-Mosaic Production
  • GeoEye leverages a strong network of partners all
    over the globe
  • Specifically in the state of Alaska, there are
    partners on which we would rely to assist with
    the ortho-image production
  • These partners have not only production knowledge
    and many years of experience with IKONOS data and
    now GE-1 data, they have a deep knowledge and
    understanding of SDMI needs
  • GeoEye can also provide ortho-mosaic imagery
    directly to the SDMI
  • The production time, regardless of who processes,
    would depend on the size of the ortho-image and
    on the necessity to re-collect for cloud cover

Swath Width
  • Nadir swath width for IKONOS is 11.3 km, and 15.2
    km for GeoEye-1
  • Collect large areas, such as Alaska, in
    one-degree (112km) long strips
  • IKONOS and GeoEye-1 can each collect three to
    four strips per pass
  • Adjacent strips are collected to facilitate tonal
    balance during ortho-mosaic generation
  • GeoEye-1 averages 2,500 sqkm per minute for large
    area collects
  • A 1,000 km long pass takes 2.45 minutes, so just
    over 6,000 sqkm are collected on said pass
  • With three to four passes per day over Alaska,
    GeoEye-1 will collect over 20,000 sqkm per day
  • IKONOS averages 1,900 sqkm per minute 4,655
    sqkm per 1,000 km pass or 16,300 sqkm per day.

Rapid Delivery and Ground Receiving Station
  • Network of ground stations strategically located
    around the world to command and control our
  • Responsive direct downlink and rapid imagery
    processing and dissemination
  • Ground station placement is optimized to afford
    maximum opportunities to downlink, process, and
    deliver imagery to our customers to meet
    stringent timelines
  • GeoEye-1s electronic image delivery worst case
    scenario is 2 hours 20 minutes from collection to
  • Our Antarctic ground station uniquely enables
    GeoEye to provide this timely and flexible
    downlink service. With access to this Antarctic
    ground station, we are able to download and start
    processing imagery instead of waiting for the
    sensor to complete a full orbit of the Earth
    before downloading
  • Ground stations in Barrow and Fairbanks, Alaska,
    that will be leveraged for the SDMI

Production Volume
  • GeoEye can collect 5.4 million sqkm in the
    150-day season by combining 16,300 sqkm per day
    from IKONOS with 20,000 sqkm per day from
    GeoEye-1 (Alaska)
  • Clouds are, however, significant during the
    collection season in Alaska
  • After accounting for clouds, feasibility analysis
    shows it will take 791 in-season days to collect
    mainland Alaska
  • Some of the outlying islands may take two years
    to collect because of poor weather conditions

Delivered Products
  • We complete delivery of raw imagery and/or
    ortho-products by several modes ranging from
    physical electronic media (DVD, Firewire, etc.)
    to File Transfer protocol (FTP), as well as
    through dedicated, high-bandwidth communication
  • We provide a direct uplink and downlink
    capability to customers with the necessary
    receiving and processing capabilities.
  • We deliver our data ready for ingestion and use
    by standard commercial exploitation software,
    Geographic Information Systems, and specialized
  • Multiple formats including industry standard
    GeoTIFF, as well as National Imagery Transfer
    Format (NITF) Versions 2.0 and 2.1.
  • Shipped with a text metadata file, license file,
    shape files, JPEG overview image and JPEG world
  • Shapefiles show area of interest (AOI), delivery
    component layout, and source image footprints
    with acquisition geometry
  • The metadata text file 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)

Licensing and Pricing
  • As the requirements for the SDMI have not been
    fully realized, GeoEye will be very flexible with
    pricing and licensing to best suit SDMI budget
    and product needs
  • Very open to considering other license types,
    such as a Non-commercial Unrestricted license
    that allows unlimited distribution (uplift factor
    to consider in this scenario)
  • Once requirements are determined, GeoEye will
    work very closely with the SDMI members to
    address licensing needs that are mutually
  • Alaska has already purchased a fair amount of
    monoscopic and stereo IKONOS data that could be
    re-licensed for an uplift fee in such a way to
    allow for use across the state and data could be
    re-processed to meet the specifications of the
  • The National Geospatial-Intelligence Agency (NGA)
    has identified the state of Alaska as a priority
    for collection on the new GeoEye-1 satellite
  • GeoEye is open to discussing with Alaska and the
    NGA how we may leverage this collection to meet
    the SDMI needs. Options include ensuring the
    states collection priorities are met, and/or
    licensing the NGA-collected data via uplift for
    SDMI use

Licensing and Pricing Contd
  • We consider project size and other factors that
    allow us to provide the best possible value for
    the SDMI
  • We will work through our strong allegiance of
    partners and/or directly with SDMI to deliver the
    best products, licensing, and pricing
  • If the SDMI finds exploring pricing for the
    entire state an overwhelming prospect, we wish to
    emphasize that we can work with SDMI and our
    partners to identify priority areas to collect
    and process
  • GeoEye will support developing a license and
    pricing model that works for all parties

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  • Collectively, the satellites comprising the
    GeoEye constellation meet SDMI requirements for
    imagery type, capacity, frequency, quality, and
    geographic access
  • The GeoEye constellation will deliver a robust
    selection of resolutions, imaging bands, and
    revisit opportunities on each satellite
  • Both IKONOS and GeoEye-1 have the ability to
    collect sub-meter imagery
  • Multiple vehicles for delivery and support to
    include our network of partners here in Alaska
  • Future imaging capability with GeoEye-2