WorldView-1

Mission

blue arrow Mission Overview

WorldView-1 is an environment-monitoring satellite from DigitalGlobe of the United States which launched on 18 September 2007 and remains operational.

It became the world's first 50 cm resolution commercial imaging satellite.

Mission Parameters
Orbit Altitude 496 km
Orbit Type Sun-synchronous
Orbit Period 94.6 minutes
Orbit Inclination 97.2°
Repeat Cycle 14 days
Equator Crossing Time 10:30 am descending node
Revisit Time 1.7 days at 1-metre GSD resolution

blue arrow Mission Objectives

WorldView-1 freed capacity on DigitalGlobe's QuickBird satellite to meet the growing commercial demand for multi-spectral geospatial imagery.

blue arrow Instruments

WorldView-60 camera (WV6)

This is a panchromatic-only instrument which produces black and white imagery.

WorldView-60 camera Parameters

Instrument optics

- Use of QuickBird optical bench design
- Telescope of 60 cm aperture

Spectral range (panchromatic imagery only)

0.45 - 0.90 µm

Spatial resolution (GSD)

- 50 cm panchromatic at nadir
- 55 cm out to 20º off-nadir

Swath width

17.6 km at nadir

Revisit frequency

- 1.7 days at 1 m GSD or less
- 5.9 days at 20º off-nadir or less (0.51 m GSD)

Detectors

- Silicon CCD array (8 µm pixel size) with a row of > 35,000 detectors
- The array includes 64 stages of TDI (35,000 columns and 64 rows)

TDI (Time Delay Integration)

6 selectable levels from 8 to 64

Data quantization

11 bit

Geolocation accuracy of imagery after processing

- 5.8 to 7.6 m without GPCs
- 2 m with GPCs

Instrument mass, power

380 kg, 250 W

blue arrow Data

blue arrow DATA DESCRIPTION

 

ESA is offering, for scientific research and application development, access to Full archive and New Tasking data from WorldView-1 mission upon submission and acceptance of project proposal. These products are available as part of the Digital Globe Standard Satellite Imagery products.

ESA will support as many high-quality and innovative European and Canadian projects as possible within the quota limit available, therefore only a limited amount of products can be made available to each project.