WorldView-2
Download the WorldView-2 fact sheet
With a mission life of 7.25 years, and operating at an altitude of 770 km, the WorldView-2 system is expected to bring unsurpassed agility, capacity, accuracy and spectral diversity to commercial earth imaging.
Greater Agility
WorldView-1 and WorldView-2 are the first commercial satellites to have control moment gyroscopes (CMGs). This high-performance technology provides acceleration up to 10X that of other attitude control actuators and improves both maneuvering and targeting capability. With the CMGs, slew time is reduced from over 60 seconds to only 9 seconds to cover 300km. This means WorldView-2 can rapidly swing precisely from one target to another, allowing extensive imaging of many targets, as well as stereo, in a single orbital pass. Higher Capacity/Faster Revisit
With its improved agility, WorldView-2 acts like a paintbrush, sweeping back and forth to collect very large areas of multispectral imagery in a single pass. WorldView-2 alone has a collection capacity of 975,000 sq km per day, doubling the collection capacity of our constellation. And the combination of WorldView-2’s increased agility and high altitude enables it to typically revisit any place on earth in 1.1 days. When added to our constellation, revisit time drops below one day and never exceeds two days, providing the most same-day passes of any commercial high-resolution satellite constellation.
Better Accuracy
WorldView-2’s advanced geopositional technology is allowing for significant improvements in accuracy as well. The accuracy specification has been tightened to 6.5m CE90 right off the satellite, meaning no processing, no elevation model and no ground control. With WorldView-1, and anticipated for WorldView-2, the measured accuracy is coming in at a remarkable 4.1m CE90.
Most High Resolution Spectral Bands
WorldView-2 provides the only high-resolution 8-band multispectral commercial satellite imagery available. Along with the four typical multispectral bands: Blue (450-510), Green (510-580), Red (630-690) and NearIR (770-895), WorldView-2 is introducing the following new color bands for enhanced multispectral analysis:
Coastal Band (400 - 450 nm):
This band supports vegetation identification and analysis, and supports bathymetric studies based upon its chlorophyll and water penetration characteristics. Also, this band is subject to atmospheric scattering and will be used to investigate atmospheric correction techniques.
Yellow Band (585 - 625 nm):
Used to identify "yellow-ness" characteristics of targets, important for vegetation applications. Also, this band assists in the development of "true-color" hue correction for human vision representation.
Red Edge Band (705 - 745 nm):
Aids in the analysis of vegetative condition. Directly related to plant health revealed through chlorophyll production.
Near Infrared 2 Band (860 - 1040 nm):
This band overlaps the NIR 1 band but is less affected by atmospheric influence. It supports vegetation analysis and biomass studies.
The WorldView-2 system, offering unsurpassed accuracy, agility, capacity and spectral diversity, will allow DigitalGlobe and European Space Imaging to substantially expand its imagery product offerings to both commercial and international customers.
Free Sample CD
European Space Imaging together with DigitalGlobe created a Sample Imagery CD. The CD contains large Sample Imagery as well as a WorldView-2 8 band multispectral demo.
To receive a link to download the contents of the Sample Imagery CD, please click on the image below.
WorldView-2, successfully launched on October 8, 2009, is the first 8-band multispectral satellite commercially available. Operating at an altitude of 770 kilometers, WorldView-2 provides half-meter panchromatic resolution and 1.8 meter multispectral resolution. WorldView-2 is capable of collecting up to 975,000 square kilometers (376,000 square miles) per day.
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WorldView-2 Specifications
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Imaging Mode
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Panchromatic
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Multispectral
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Spatial Resolution
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0.46 meters
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1.84 meters
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Spectral Range
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450-800 nm
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400-450 nm (coastal)
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450-510 nm (blue)
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510-580 nm (green)
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| 585-625 nm (yellow) | ||
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630-690 nm (red)
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| 705-745 nm (red edge) | ||
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770-895 nm (near IR)
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860-1040 nm (near IR)
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Swath Width
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16.4 km
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Collection Elevation Angle
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50-90 degrees; off-nadir < 35°
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Dynamic Range
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11 bits per pixel
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Revisit Time
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1.69 days at 45 degrees latitude
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Orbital Altitude
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770 km
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Download the WorldView-2 fact sheet
With a mission life of 7.25 years, and operating at an altitude of 770 km, the WorldView-2 system is expected to bring unsurpassed agility, capacity, accuracy and spectral diversity to commercial earth imaging.
Greater Agility
WorldView-1 and WorldView-2 are the first commercial satellites to have control moment gyroscopes (CMGs). This high-performance technology provides acceleration up to 10X that of other attitude control actuators and improves both maneuvering and targeting capability. With the CMGs, slew time is reduced from over 60 seconds to only 9 seconds to cover 300km. This means WorldView-2 can rapidly swing precisely from one target to another, allowing extensive imaging of many targets, as well as stereo, in a single orbital pass. Higher Capacity/Faster Revisit
With its improved agility, WorldView-2 acts like a paintbrush, sweeping back and forth to collect very large areas of multispectral imagery in a single pass. WorldView-2 alone has a collection capacity of 975,000 sq km per day, doubling the collection capacity of our constellation. And the combination of WorldView-2’s increased agility and high altitude enables it to typically revisit any place on earth in 1.1 days. When added to our constellation, revisit time drops below one day and never exceeds two days, providing the most same-day passes of any commercial high-resolution satellite constellation.
Better Accuracy
WorldView-2’s advanced geopositional technology is allowing for significant improvements in accuracy as well. The accuracy specification has been tightened to 6.5m CE90 right off the satellite, meaning no processing, no elevation model and no ground control. With WorldView-1, and anticipated for WorldView-2, the measured accuracy is coming in at a remarkable 4.1m CE90.
Most High Resolution Spectral Bands
WorldView-2 provides the only high-resolution 8-band multispectral commercial satellite imagery available. Along with the four typical multispectral bands: Blue (450-510), Green (510-580), Red (630-690) and NearIR (770-895), WorldView-2 is introducing the following new color bands for enhanced multispectral analysis:
Coastal Band (400 - 450 nm):
This band supports vegetation identification and analysis, and supports bathymetric studies based upon its chlorophyll and water penetration characteristics. Also, this band is subject to atmospheric scattering and will be used to investigate atmospheric correction techniques.
Yellow Band (585 - 625 nm):
Used to identify "yellow-ness" characteristics of targets, important for vegetation applications. Also, this band assists in the development of "true-color" hue correction for human vision representation.
Red Edge Band (705 - 745 nm):
Aids in the analysis of vegetative condition. Directly related to plant health revealed through chlorophyll production.
Near Infrared 2 Band (860 - 1040 nm):
This band overlaps the NIR 1 band but is less affected by atmospheric influence. It supports vegetation analysis and biomass studies.
The WorldView-2 system, offering unsurpassed accuracy, agility, capacity and spectral diversity, will allow DigitalGlobe and European Space Imaging to substantially expand its imagery product offerings to both commercial and international customers.
Free Sample CD
European Space Imaging together with DigitalGlobe created a Sample Imagery CD. The CD contains large Sample Imagery as well as a WorldView-2 8 band multispectral demo.
To receive a link to download the contents of the Sample Imagery CD, please click on the image below.
