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.

WorldView-3 Satellite Imagery


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 Applications

  • Superior 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.

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