WorldView-1

WorldView-1
Mission type Earth observation
Operator DigitalGlobe
COSPAR ID 2007-041A
SATCAT № 32060
Website DigitalGlobe WorldView-1
Mission duration 7.25 years
Spacecraft properties
Manufacturer Ball Aerospace
Launch mass 2,500 kilograms (5,500 lb)
Power 3200 watts
Start of mission
Launch date September 18, 2007, 18:35:00 (2007-09-18UTC18:35Z) UTC
Rocket Delta II 7920
Launch site Vandenberg Air Force Base
Orbital parameters
Reference system Geocentric
Regime Low Earth
Semi-major axis 6,872.02 km (4,270.08 mi)[1]
Eccentricity 0.0005028[1]
Perigee 497 km (309 mi)[1]
Apogee 504 km (313 mi)[1]
Inclination 97.87 degrees[1]
Period 94.49 minutes[1]
RAAN 113.04 degrees[1]
Argument of perigee 99.35 degrees[1]
Mean anomaly 15.24 degrees[1]
Mean motion 15.24[1]
Epoch January 25, 2015, 02:44:46 UTC[1]

WorldView-1 is a commercial earth observation satellite owned by DigitalGlobe. It was launched September 18, 2007, followed later by the WorldView-2 in 2009.[2] First imagery from WorldView-1 was available in October 2007, prior to the six-year anniversary of the launch of QuickBird, DigitalGlobe’s previous satellite.[3]

WorldView-1 was partially financed through an agreement with the National Geospatial-Intelligence Agency (NGA). Some of the imagery captured by WorldView-1 for the NGA is not available to the general public. However, WorldView-1 freed capacity on DigitalGlobe’s QuickBird satellite to meet the growing commercial demand for multi-spectral geospatial imagery.[3]

Design

WorldView-1, was built by Ball Aerospace & Technologies. Ball Aerospace built the spacecraft bus and the camera (instrument) using the off-axis camera design identical to QuickBird with the instrument's focal plane being supplied by ITT Exelis. The camera is a panchromatic imaging system featuring half-meter resolution imagery. With an average revisit time of 1.7 days, WorldView-1 is capable of collecting up to 750,000 square kilometers (290,000 sq mi) per day of half-meter imagery.[3]

Launch

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "WORLDVIEW 1 Satellite details 2007-041A NORAD 32060". N2YO. January 25, 2015. Retrieved January 25, 2015.
  2. ↑ "DigitalGlobe announces Ball building WorldView 2 satellite". Spaceflight Now. Retrieved 2007-02-02.
  3. 1 2 3 "DigitalGlobe Successfully Launches Worldview-1". DigitalGlobe.
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