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WorldView-1, launched on the 18th of September 2007, is the first of DigitalGlobe’s next-generation satellites – the most agile satellites ever flown commercially. The high capacity, panchromatic imaging system features half-meter resolution imagery. Alongside with DigitalGlobe, such companies as Ball Aerospace, Eastman Kodak, ITT Industries and BAE systems took part in the WorldView-1’s development.

Lena River, Russia, May 2008. WorldView-1 satellite ©DigitalGlobe
Orel, Russia, April 2008. WorldView-1 satellite ©DigitalGlobe
Wind Farm, Kaliningrad, Russia, September 2012. WorldView-1 satellite ©DigitalGlobe
Operating at an altitude of 496 km, WorldView-1 has an average revisit time of 1,7 days and can collect over one million sq km per day of half-meter imagery. The satellite is also equipped with state of-the-art geolocation accuracy capabilities and exhibits stunning agility with rapid targeting and efficient in-track stereo collection.

Spacecraft design and mission details

Name

WorldView-1

Country

USA

Developer

Ball Aerospace, ITT Industries, Eastman Kodak, BAE systems, DigitalGlobe

Operator

DigitalGlobe

Launch vehicle

Delta II

Launch date

18 September 2007

Launch site

Vandenberg Air Force Base, California

Date of deactivation

-

Orbit: Type
Altitude, km
Inclination, deg.

Sun-synchronous
496
97,2

Mission duration, years

Planned: 7,25 years
Elapsed: 11 years

Revisit frequency, days

1 – 3

Spacecraft dimensions, m

3,6 × 2,5

Power, W

3200

Mass, kg

2500

Specifications


Sensor bands Panchromatic: 400–900 nm
Dynamic range, bits per pixel 11
Sensor resolution, m 50 cm Ground Sample Distance (GSD) at nadir
55 cm GSD at 20° off-nadir
Swath width, km 17,7
Attitude determination and control Type: 3-axis Stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, precision IRU, GPS
Horizontal accuracy (CE90%) Demonstrated <4,0 m (without ground control)
Retargeting agility Time to Slew 200 km: 10 sec
Onboard storage 2199 Gb solid state with EDAC

Collection scenarios:

  • Long strip: 360 × 17,7 km
  • Large Area Collect: 112 × 111 km
  • Multiple Point Targets: 17,7 × 17,7 km
  • Stereo Area Collect: 112 × 51 km

Products

Basic – Basic products are designed for customers with advanced image processing capabilities. These imagery products, when combined with supplied attitude, ephemeris, and camera model information, are suitable for advanced photogrammetric processing (for example, orthorectification). Each unique image in a Basic Product is processed individually; seamlines will be visible in products requiring multiple images to cover the area of interest.

Standard – Standard Imagery products are suitable for users requiring modest absolute accuracy and/or large area coverage. Users of Standard Imagery products usually possess enough image processing tools and knowledge to manipulate and exploit the imagery for a wide variety of applications.

Orthorectified – Ortho Ready Standard Stereo Imagery products are suitable for customers with a high level of image expertise and software that is capable of ingesting, processing and/or displaying stereo imagery. They are typically used to create Digital Elevation Models (DEMs) or for 3D feature extraction. Customers ordering stereo products who require a small area of interest (AOI) should order the Ortho Ready Standard Stereo Product while customers requiring large area coverage should opt for the Basic Stereo Product.

Basic Stereo Pair – Basic Stereo Pair Imagery products are suitable for customers with a high level of image expertise and who have software that is capable of ingesting, processing, and/or displaying stereo imagery. Basic Stereo Pair Imagery products are typically used to create Digital Elevation Models (DEMs) or for three-dimensional feature extraction. Basic Stereo Pair Imagery products are comprised of one or more pairs of Basic Images with 100% overlap over the customer’s Area of Interest (AOI). Stereo mates are collected on the same satellite orbit and with specific look angles in order to attain imagery appropriate for stereo viewing. 

Product Basic Standard Orthorectified Basic Stereo
Radiometric correction Yes Yes Yes Yes
Geometric correction Yes Yes Yes Yes
Georeferencing Yes Yes - -
Orthorectification - - Yes -

Horizontal accuracy (CE90%), m

6,5 6,5

1:50000-25,4
1:12000-10,2
1:5000-4,2
1:4800-4,1

6,5
(usually 4,0-5,5)

Vertical accuracy (LE90%), m

- - -

6,5
(usually 4,0-5,5)

Spectral bands Panchromatic
Minimum order size, km2 230 Archive data – 25
New survey – 64
100

210

Maximum order size, km2 10000
Delivery formats GeoTIFF 1.0, NITF 2.1 or NITF2.0

Applications:

  • Creation and update of maps and plans;
  • Creation of DTMs;
  • Engineering survey for construction works of oil and gas facilities;
  • Inventory of forests and forest management;
  • Monitoring of the crops’ state, yield forecasting;
  • Creation of maps for urban planning purposes;
  • Emergency monitoring;
  • Researches.
For cost calculation of the WorldView-1 imagery for your area of interest, send technical description of your proposal to: innoter@innoter.com. For consultations contact by the phone: +7 495 245-04-24
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