About WorldView-2
WorldView-2 is an imaging and environment-monitoring satellite from DigitalGlobe of the United States which launched on 8 October 2009 and remains operational.
It is the follow-on spacecraft to WorldView-1.
| Orbit Altitude | 770 km |
| Orbit Type | Sun-synchronous |
| Orbit Period | 100 minutes |
| Revisit Time | Up to 1.1 days |
| Equator Crossing Time | 10:30 am descending node |
WorldView-2 Objectives
The overall objective is to meet the growing commercial demand for high-resolution satellite imagery. WorldView-2 provides commercially available panchromatic imagery of 0.46 m resolution, and eight-band multispectral imagery with 1.84 m resolution - representing one of the highest available spaceborne resolutions on the market.
WorldView-2 Instruments
WorldView-110 camera (WV110)
This instrument collects images at 0.41 metre panchromatic and 1.64 metre 8-band multi-spectral data. Along with the Pan (450-800 nm) and the four typical multispectral bands (blue, green, red, NIR), WorldView-2 has four additional bands for enhanced multispectral analysis (coastal blue, yellow, red edge, NIR2) designed to improve segmentation and classification of land and aquatic features.
|
Imager type |
Pushbroom imager (or a line scan imaging system) |
|
|
Imaging mode |
Panchromatic (Pan) |
Multispectral (MS) 8 bands |
|
Spectral range |
450-800 nm |
400-450 nm (coastal blue) |
|
Spatial resolution at nadir |
0.46 m GSD (0.52 m at 20º off-nadir) |
1.8 m GSD (2.4 m at 20º off-nadir) |
|
Swath width |
16.4 km (multiple adjoining paths can be imaged in a target area in a single orbit pass due to S/C agility) |
|
|
Detectors |
Pan: Si CCD array (8 µm pixel size) with a row of > 35,000 detectors |
|
|
Data quantization |
11 bit |
|
|
Geolocation accuracy of imagery |
≤ 3 m (using a GPS receiver, a gyroscope and a star tracker) without any GCP (Ground Control Points) |
|
|
Optics |
TMA telescope with an aperture diameter of 1.1 m, focal length = 13.3 m, f/12 |
|
|
TDI (Time Delay Integration) |
6 selectable levels from 8 to 64 in Pan and MS |
|
|
FOV (Field of View) |
> 1.28º |
|
|
Instrument size |
3 m tall |
|
WorldView-2 Data
DATA DOWNLOAD
DATA DESCRIPTION
ESA is offering, for scientific research and application development, access to Full archive and New Tasking data from WorldView-2 missions upon submission and acceptance of project proposal.
ESA will support as many high-quality and innovative projects as possible within the quota limit available, therefore only a limited amount of products can be made available to each project.
The following collection is available:
- WorldView-2 full archive and tasking: Standard, Ortho Ready and Map Scale processing levels available
ESA offers access to registered users through the Online Dissemination server to the following data collection
- WorldView-2 European Cities: WorldView-2 dataset covering the most populated areas in Europe at 40 cm resolution.