tvis > WorldView-1

WorldView-1

WorldView-1 is a commercial satellite owned by Digital Globe. Launched on September 18, 2007 from Vanderberg Air Base by a Delta-2 launch vehicle.

The WorldView-1 spacecraft is equipped with a telescope with an aperture of 60 cm for shooting only in panchromatic mode. The satellite can shoot in different ways: frame shooting, route shooting (along coastlines, roads and other linear objects), field shooting (areas of 60×60 km), as well as stereo shooting.

Briefly about the main thing

The satellite was designed and manufactured by Ball Aerospace, which specializes in the creation of scientific satellites and space observatories, such as Kepler. This is not the first joint project of the companies. In 2001, the QuickBird satellite was launched and worked in orbit for 5 years.

The device is equipped with a 50-centimeter panchromatic camera, which allows you to obtain images of the Earth with a resolution of up to half a meter. “WorldView-1” operates at an altitude of 496 kilometers. In one complete cycle of 1.7 days, the satellite receives images with a resolution covering 750 thousand square kilometers. The device is also equipped with a system for determining the geographical coordinates of the Earth.

The project was partially funded by the US National Geospatial Intelligence Agency (NGIA). Some images obtained by WorldView-1 for NGIA are not available to the general public.

 

Technical specifications

Launch date
18 September 2007
Developer
Wandenberg Air Force Base (USA)
Lounching place
РН Delta II (USA)
Developer
Ball Aerospace & Technologies (USA; Platform, integration), Eastman Kodak (USA; Optical camera), Exelis (USA; Integration), BAE SYSTEMS (USA; Processing Systems)
Operator
DigitalGlobe (USA)
Mass
2500 kg
Type of orbit
Solar-synchronous
Orbit height
496 km
The inclination of the orbit
97.2 degrees
Estimated service life
7 years
Sensor bands, Panchromatic, nm
Panchromatic
Sensor bands, Multispectral,nm
0,50–0,90
Sensor resolution, Panchromatic (or GSD, ground sample distance; off-nadir is geometric mean)
0,5
Sensor resolution, Multispectral (or GSD, ground sample distance; off-nadir is geometric mean)
40
Maximum off-nadir angle
11
Dynamic range,bits per pixel
CE90 mono = 5
Geolocation accuracy, m
17,6
Swath width, km
0,75
Revisit frequency
5.7 (with a deviation from Nadir to 20 degrees)
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