WorldView-2
Orbiting at an altitude of 770 km, WorldView-2 collects up to 1 million square kilometers of high-resolution 8-band imagery every day. It also offers industry-leading geolocation accuracy and stereoscopic collection on a single pass, ensuring greater image continuity.
- Very High Resolution
- The most spectral diversity commercially available
- Frequent revisits at high resolution
- Industry-leading geolocation accuracy
- Bi-directional scanning
- Ultra-stable platform, highprecision attitude sensors and GPS
About 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, greatly enhancing Maxar’s multispectral collection capacity for more rapid and reliable collection. WorldView-2 substantially expands imagery product offerings to all Maxar customers. Operating at an altitude of 496 km, WorldView-1 has an average revisit time of 1.7 days and is capable of collecting over one million sq km per day of half-meter imagery. The satellite is also equipped with state-of-theart geolocation accuracy capabilities and exhibits stunning agility with rapid targeting and efficient in-track stereo collection. WorldView-1 resides in a descending node of 1:30pm.
WorldView-2 Samples
WorldView-2 Specs
- Launch Information
Date: October 8, 2009
Launch Vehicle: Delta 7920 (9 strap-ons)
Launch Site: Vandenberg Air Force Base, California
- Orbit
Altitude: 770 km
Type: Sun synchronous, 10:30 am descending node
Period: 100 min.
- Spacecraft Size, Mass and Power
5.7 m (18.7 ft) tall x 2.5 m (8 ft) across
7.1 m (23 ft) across the deployed solar arrays
2615 kg (5765 lbs)
3.2 kW solar array, 100 Ahr battery
- Sensor Bands
Panchromatic: 450 - 800 nm 8 Multispectral
- Sensor Resolution
Panchromatic: 0.46 m GSD at nadir, 0.52 m GSD at 20° off-nadir
Multispectral: 1.85 m GSD at nadir, 2.07 m GSD at 20° off-nadir
- Dynamic Range
11-bits per pixel
- Swath Width
16.4 km at nadir
- Attitude Determination & Control
3-axis stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, solid state IRU, GPS
- Pointing Accuracy & Knowledge
Accuracy: <500 m at image start and stop
Knowledge: Supports geolocation accuracy below
- Retargeting Agility
Time to Slew 200 km: 10 sec
- Onboard Storage
2199 Gb solid state with EDAC
- Communications
Image and Ancillary Data: 800 Mbps X-band
Housekeeping: 4, 16 or 32 kbps realtime, 524
kbps stored, X-band
Command: 2 or 64 kbps S-band
- Max Contiguous Area Collected in a Single Pass (30° off-nadir)
Mono: 138 x 112 km (8 strips)
Stereo: 63 x 112 km (4 pairs)
- Revisit Frequency (at 40°N Latitude)
1.1 days at 1 m GSD or less
3.7 days at 20° off-nadir or less (0.52 m GSD)
-
Geolocation
Accuracy (CE90)
Demonstrated <3.5 m CE90 without ground control
- Capacity
1 million sq km per day
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WorldView-2 is right
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