WorldView-2
| Worldview-2 | |
|---|---|
| Type: | Earth observation satellite |
| Country: |
 United States
|
| Operator: | DigitalGlobe |
| COSPAR-ID : | 2009-055A |
| Mission dates | |
| Dimensions: | 2615 kg |
| Size: | 4.3 × 2.5 m |
| Begin: | October 8, 2009 |
| Starting place: | Vandenberg Air Force Base SLC-2W |
| Launcher: | Delta-II 7920-10C D-345 |
| Status: | in operation |
| Orbit data | |
| Rotation time : | 100.2 min |
| Orbit inclination : | 98.5 ° |
| Apogee height : | 773 km |
| Perigee height : | 773 km |
WorldView-2 is a commercial earth observation satellite manufactured by Ball Aerospace of the United States. It was launched on October 8, 2009 from Vandenberg Air Force Base with a Delta II rocket.
WorldView-2 delivers images from a height of 770 km with a resolution of 0.5 m ( panchromatic ) and in multispectral mode in eight spectral ranges of 1.8 m. In addition, the three-axis stabilized satellite and the data evaluation are prepared to record changes in an area compared to previous recordings or stereo images of a region. The images are distributed in cooperation with the company DigitalGlobe , which already operates other satellites for similar tasks with Quickbird and WorldView-1 .
The expected service life of the satellite is up to twelve years, depending on the source.
In July 2016, eight pieces of debris were seen moving around the satellite. DigitalGlobe confirmed with a picture taken by the satellite that it was functional. The origin of the debris is unknown.
The successor WorldView-3 was launched on August 13, 2014.
Technical specifications
- Mass: 2615 kg
- Size: 4.3m × 2.5m
- Span of the solar cells: 7.1 m
- Power: 3.2 kW (solar cells) + 100 Ah batteries
- Planned service life: at least 7 years
- Image resolution: 46 cm panchromatic at the nadir , 180 cm multispectral
- Strip width: 16.4 km
- OnBoard storage capacity: 275 gigabytes
- Radio systems: X-band for images with a data rate of 800 Mbps
- Positioning accuracy (via GPS): 5 m – 10 m
- Circulation time: 100 min
- maximum area that can be recorded multispectrally per day: 1,000,000 km²
Web links
- Operator's data sheet (PDF, English)
- The manufacturer's website (English)
- Data sheet on Gunter's Space Page (English)
Individual evidence
- ↑ Railway data according to WORLDVIEW 2. N2YO, November 19, 2016, accessed on November 19, 2016 (English).
- ↑ Raumfahrer.net: WorldView 2 in orbit
- ↑ WorldView-2. In: ball.com. Retrieved January 29, 2017 .
- ↑ WorldView-2. In: ESA Third Party Missions. ESA, accessed January 29, 2017 .
- ↑ Tages-Anzeiger : Mysterious debris on the giant spy satellite , accessed on July 24, 2016
- ^ William Graham: ULA Atlas V launches WorldView-3 satellite out of Vandenberg. nasaspaceflight.com, August 13, 2014, accessed August 13, 2014 .
- ↑ DigitalGlobe: WorldView-2. (PDF) Retrieved July 27, 2016 (English).