Worldview 3
WorldView-3 is a multi-payload, super-spectral, high-resolution commercial
satellite for Earth observations.
Resolution: 31 cm panchromatic, 1.24 m multispectral, 3.7 m short-wave infrared
(SWIR), and 30 m CAVIS.
Specifications
downlink: 8.025-8.400 GHz
uplink: 2085.6875 MHz
CAVIS (which stands for Cloud, Aerosol, Water Vapor, Ice, Snow) will
monitor the atmosphere and provide correction data to improve WorldView-3's
imagery when it images Earth objects through haze, soot, dust or other
obscurants. CAVIS has also been integrated with the spacecraft.
Like previous Worldview satellites, it carries Control Moment Gyroscopes (CMGs)
which enable to reorient a satellite over a desired collection area in 4-5
seconds, compared to 30-45 seconds needed for traditional reaction wheels.