WORLDVIEW

WORLDVIEW-1

WorldView-1 is one of the DigitalGlobe constellation of very high resolution satellites. This agile satellite has a high average revisit time and is capable of collecting up to 750,000 square kilometers (290,000 square miles) per day. WorldView-1 provides only panchromatic (black and white) imagery, but the resolution of 0.41 m is one of the highest available. Digital Globe's operating license from the U.S. Government requires re-sampling the imagery to 0.5-meter for all customers not explicitly granted a waiver by the U.S. Government.

altitude: 496 km
inclinatson: 98 degrees
orbit: sun-synchronous polar
orbit period: 94,6 minutes
revisit time: 1.7 - 4.5 days
swath width: 17.6 km
satellite: Worldview-1 (18/09/2007 - operational)

Capteur

Mode
Spectral band
Resolution
Panchromatic 0,4 - 0,9 µm 0,5 m au nadir

Mission website

 

WORLDVIEW_2

WorldView-2 is the only commercial satellite offering imagery that combines the advantages of both 8-band multispectral capability and very high resolution. Its average revisit time allows collecting up to 975,000 square kilometers (376,000 square miles) per day. WorldView-2 provides 46 cm resolution images in panchromatic mode and 1.84 meter resolution images in multispectral mode.

altitude: 770 km
inclinatson: 98 degrees
orbit: sun-synchronous polar
orbit period: 100 minutes
revisit time: 1.1 – 3.7 days
swath width: 16.4 km
satellite: Worldview-2 (8/10/2009 - operational)

Sensor
This very high resolution optical sensor can acquire panchromatic as well as multispectral data. Along with the four typical multispectral bands in the visible and near infrared, WorldView-2 imagery also contains 4 additional colours allowing enhanced multispectral analysis.

Mode
Spectral band
Resolution
Panchromatic 0,450 - 0,800 µm 0,5 m x 0,5 m

Mode
Band
Spectral band
Applications
Multispectral
1
0,770 - 0,895 µm (near IR 1)
2
0,630 - 0,690 µm (red)
3
0,510 - 0,580 µm (green)
4
0,450 - 0,510 µm (blue)
5
0,705 – 0,745 µm (red-edge*)
Analysis of vegetative condition. Directly related to plant health
6
0,585 – 0,625 µm (yellow)
Vegetation applications – Facilitates the "true-color" representations
7
0,400 - 0,450 µm (coastal band)
Vegetation identification and analysis, bathymetric studies based upon its chlorophyll and water penetration characteristics, atmospheric corrections
8
0,860 – 1,040 µm (near IR 2)
Vegetation analysis and biomass studies (less affected by atmospheric influence than the NIR 1 band)

* Red Edge: Spectral region at the limit of the red and near-infrared wavelengths characterized by a sharp rise in the plant reflectance

Mission website

Data Distributors


Pan-sharpened - Multispectral
Luxor, Egypte
© Eurimage

Pan-sharpened - Multispectral
Le Colisée, Rome
© Eurimage