WORLDVIEW 2
WorldView-2, launched October 2009, is the first high-resolution 8-band multispectral commercial satellite. Operating at an altitude of 770 km, WorldView-2 provides 46 cm panchromatic resolution and 1.85 m multispectral resolution. WorldView-2 has an average revisit time of 1.1 days and is capable of collecting up to 1 million sq km of 8-band imagery per day.
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770 km altitude
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Sun synchronous orbit
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Orbits Earth every 100 minutes
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Estimated service life of 10-12 years
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5.7 x 2.5 x 7.1 m in size (including solar arrays); 2615 kg mass
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3.2 kW solar array, 100 Ah battery
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Sensor bands
Panchromatic: 450 – 800 nm
Multispectral – Coastal: 400 – 450 nm | Blue: 450 – 510 nm | Green: 510 – 580 nm | Yellow: 585 – 625 nm | Red: 630 – 690 nm | Red edge: 705 – 745 nm | Near infrared 1: 770 – 895 nm | Near infrared 2: 860 – 1040 nm -
Sensor resolution
Panchromatic nadir: 0.46 m | 20° off-nadir: 0.52 m
Multispectral nadir: 1.85 m | 20° off-nadir: 2.07 m -
11 bits per pixel dynamic range
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16.4 km swath at nadir
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3-axis stabilized
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Control moment gyroscope actuators
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Sensors include star trackers, GPS, and a precision inertial reference unit (IRU)
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10 seconds to slew 200 km
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2199 GB solid state storage incorporating error detection and correction (EDAC)
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800mbps max communications speed
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138 x 112 km maximum mono collection per pass (8 strips)
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63 x 112 km maximum stereo collection per pass (4 pairs)
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Average revisit rate 1.1 days | 3.7 days at 20° off-nadir or less
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3.5 m CE90 accuracy without ground control
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1 million km2 collection capacity per day
SAMPLES
