WorldView-3
| WorldView-3 | |
|---|---|
| Type: | Earth observation satellite |
| Country: |
 United States
|
| Operator: | DigitalGlobe |
| COSPAR-ID : | 2014-048A |
| Mission dates | |
| Dimensions: | 2800 kg |
| Size: | 2.5 × 2.5 × 5.7 m (span 7.1 m) |
| Begin: | August 13, 2014 |
| Starting place: | Vandenberg AFB SLC-3E |
| Launcher: | Atlas V-401 AV-047 |
| Status: | in operation |
| Orbit data | |
| Rotation time : | 97.0 min |
| Orbit inclination : | 97.9 ° |
| Apogee height : | 622 km |
| Perigee height : | 621 km |
WorldView-3 is a commercial earth observation satellite from the American company DigitalGlobe .
Mission and Structure
It was launched into polar orbit from the Vandenberg rocket launch site on August 13, 2014 at 18:30 UTC with an Atlas V-401 launcher . It was the first commercial launch of an Atlas V from Vandenberg.
The three-axis stabilized satellite is based on its predecessor WorldView-2 and, like this one, is equipped with 8 VNIR spectral channels. In contrast to its predecessor, WorldView-3 was also equipped with 8 SWIR and 12 CAVIS spectral channels. However, due to its lower orbit, it will achieve a higher resolution of around 31 cm in panchromatic mode. The camera system built by Exelis is equipped with a primary mirror with a diameter of around 1.1 meters and works panchromatically in the range between 450 and 800 nanometers. There are 8 multispectral bands between 400 and 1,040 nanometers available, with the maximum achievable resolution being 1.24 meters. In the short-wave infrared range (SWIR) of eight band ranges between 1,195 and 2,365 nanometers, a resolution of around 3.7 meters should be achieved. The CAVIS (Clouds, Aerosols, Water Vapor, Ice and Snow) system was built by Ball Aerospace and is intended to determine not only vegetation, soil moisture and snow cover, but also cloud cover, air humidity and aerosol content. The data obtained from 12 band areas between 405 and 2,245 nanometers can be included as correction factors in the digital images of the imaging systems of WorldView-3 and improve the image quality. The resolution of the instrument is around 30 centimeters. The data transmission to earth takes place in the X-band .
WorldView-3 was based on the BCP-5000 - satellite bus built the Ball Aerospace and has a design life of 7.5 years. The satellite was ordered from Ball Aerospace in autumn 2010.
Web links
- Worldview-3 at the manufacturer Ball Aerospace
- Worldview-3 at the operator Digital Globe
- WorldView-3 sensors
Individual evidence
- ↑ WorldView-3 in the NSSDCA Master Catalog , accessed on September 2, 2014.
- ↑ WORLDVIEW-3 (WV-3). N2YO, November 19, 2016, accessed November 19, 2016 .
- ↑ a b nasaspaceflight.com: ULA Atlas V launches WorldView-3 satellite out of Vandenberg
- ↑ satimagingcorp: WorldView-3
- ↑ Raumfahrer.net: Earth observation satellite WorldView 3 in space , Thomas Weyrauch, August 17, 2014