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WorldView-3 Satellite Imagery
WorldView-3 was the first multi-payload, super-spectral, high-resolution satellite offered to the public commercially. Orbiting at an altitude of 617 km; the WorldView-3 commercial satellite provides 31 cm panchromatic resolution, 1.24 meter multispectral resolution, 3.7 meter short-wave infrared resolution, and 30 m CAVIS resolution. WorldView-3’s revisit time averages to less than one day. The WV3 satellite is capable of collecting up to 680,000 sq km per day. The WorldView-3 satellite greatly enhanced Maxar‘s collection capacity to offer more rapid and reliable collections to its commercial and government clients.
Features
Very high pixel resolution
Panchromatic 31 cm
Visible & near-infrared 1.24 m
Short-wave infrared 3.7 m
CAVIS 30 m
The most spectral diversity commercially available:
- Panchromatic band
- 4 standard VNIR colors: blue, green, red, near-IR1
- 4 added VNIR colors: coastal, yellow, red edge, and near-IR2
- 8 SWIR bands: Penetrates haze, fog, smog, dust, and smoke
- 12 CAVIS bands: Maps clouds, ice and snow, corrects for aerosol and water vapor
Industry-leading geolocation accuracy
High capacity in variety of collection modes
Bi-directional scanning
Rapid retargeting using Control Moment Gyros
Direct Access tasking from and image transmission to customer sites is available
Benefits
Daily revisits
Simultaneous, high resolution ° Super-spectral imagery collections
Large area mono and stereoscopic collection eliminates temporal variations
Precision geolocation possible without ground control points for ortho image and mapping generation
Global capacity of 680,000 sq km per day
New and enhanced applications, including:
- Mapping
- Land Classifications
- Disaster Preparedness/Response
- Feature Extraction/Change Detection - Soil/Vegetative Analysis
- Geology: Oil & Gas, Mining
- Environmental Monitoring
- Bathymetry/Coastal ApplicationsSuperior haze penetration
Design and specifications
Orbit
Altitude: 617 km
Type: Sun synchronous, 10:30 am descending node
Period: 97 min.
Life
Spec Mission Life: 7.25 years
Estimated Service Life: 10 to 12 years
Spacecraft size, mass and power
Size: 5.7 m (18.7 ft) tall x 2.5 m (8 ft) across 7.1 m (23 ft) across deployed solar
Mass: 2800 kg (6200 lbs.)
Power: 3.1 kW solar array, 100 Ahr
Sensor bands
Panchromatic: 450–800 nm
8 Multispectral
8 SWIR Bands
12 CAVIS Bands
Sensor resolution
(or GSD, Ground Sample Distance; off-nadir is geometric mean)
Panchromatic nadir: 0.31 m
20° off-nadir: 0.34 m
Multispectral nadir: 1.24 m
20° off-nadir: 1.38 m
SWIR nadir: 3.70 m
20° off-nadir: 4.10 m
CAVIS nadir: 30.00 m
Dynamic range
11-bits per pixel Pan and MS; 14-bits per pixel SWIR
Swath width
At nadir: 13.1 km
Attitude determination and control
Type: 3-axis Stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, precision IRU, GPS
Pointing accuracy and knowledge
Accuracy: <500 m at image start/stop Knowledge: Supports geolocation accuracy below
Retargeting agility
Time to Slew 200 km: 12 sec
Onboard storage
2199 Gb solid state with EDAC
Communications
Image & Ancillary Data: 800 and 1200 Mbps X-band Housekeeping: 4, 16, 32, or 64 kbps real time, 524 kbps stored, X-band Command: 2 or 64 kbps S-band
Max contiguous area collected in a single pass (30° off-nadir angle)
Mono: 66.5 km x 112 km (5 strips)
Stereo: 26.6 km x 112 km (2 pairs)
Revisit frequency (at 40°N Latitude)
1 m GSD: <1.0 day
4.5 days at 20° off-nadir or less
Geolocation accuracy (CE90)
Predicted <3.5 m CE90 without ground control
Capacity
680,000 sq km per day
For more information or to order products and/or services visit our online store . You can contact GeoWGS84 directly at (720) 702-4849 or info@geowgs84.com.
