WorldView-4 - Earth Online

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About WorldView-4

WorldView-4 was an imaging and environment-monitoring satellite from Maxar of the United States, which launched on 11 November 2016 to enhance European Space Imaging's customer offering with very high resolution imagery options.

Operating in coordination with WorldView-3 and the other satellites of the WorldView constellation, it offered high-resolution imagery at 31 cm resolution in panchromatic mode and 1.23 m in multispectral mode; it provided large area single pass (synoptic) collection, which eliminates temporal variations and offers geolocation accuracy and bi-directional scanning with daily revisits.

On 7 January 2019, WorldView-4 was retired when the satellite experienced a failure in its CMGs (Control Moment Gyros), preventing the satellite from collecting imagery due to the loss of an axis of stability.

*Mission Parameters*
Orbit Altitude	617 km
Orbit Type	Sun-synchronous
Orbit Period	97 minutes
Equator Crossing Time	10:30am Descending node

WorldView-4 Objectives

WorldView-4 offered multispectral, high-resolution satellite imagery; it was capable of collecting up to 680,000 km² per day and had the ability to collect data for large-area mapping projects at the highest available resolution.

WorldView-4 Instruments

SpaceView-110 camera (WV110)

The WV110 instrument collected images at 0.31 metre panchromatic and 1.24 metre in the Visible and Near-Infrared bands. WorldView-4 was capable of rapid retargeting through the use of its Control Moment Gyros.

*WV110 Parameters*
	Band name	Spectral band	GSD (Ground Sample Distance)
Panchromatic Band (1)	450 - 800 nm		Nadir: 0.31 m 20° off-nadir: 0.34 m 56° Off-Nadir: 1.00 m
MS (Multispectral) bands (4) in VNIR (Visible Near Infrared)	Blue	450 - 510 nm	Nadir: 1.24 m 20° off-nadir: 1.38 m 56° Off-Nadir: 4.00 m
	Green	510 - 580 nm
	Red	655 - 690 nm
	Near-IR	780 - 920 nm
Data Quantization	11 bit/pixel
Swath Width	13.1 km
Revisit Frequency (at 40º N latitude)	1 m GSD: <1.0 day Total constellation > 4.5 accesses / day
Geolocation Accuracy	Predicted <5 m CE90 without ground control

WorldView-4 Data

DATA COLLECTIONS

These collections are available as part of the Maxar Standard Satellite Imagery products and are distributed by European Space Imaging (EUSI).

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

WorldView-4 Full Archive

Moreover, ESA offers to registered users access through the Online Dissemination server to the following data collection:

WorldView ESA archive

WorldView-4 INSTRUMENTS

WorldView-4 DATA