WorldView-1

Mission type	Earth observation
Operator	DigitalGlobe
COSPAR ID	2007-041A
SATCAT no.	32060
Website	DigitalGlobe WorldView-1
Mission duration	Planned: 7.25 years Elapsed: 16 years, 8 months, 27 days
Spacecraft properties
Bus	BCP-5000[1]
Manufacturer	Ball Aerospace
Launch mass	2,500 kilograms (5,500 lb)
Dimensions	3.6 × 2.5 m (11.8 × 8.2 ft)
Power	3200 watts
Start of mission
Launch date	18 September 2007, 18:35:00 (2007-09-18UTC18:35) UTC[2]
Rocket	Delta II 7920-10C, D-326[2]
Launch site	Vandenberg SLC-2W
Contractor	Boeing / United Launch Alliance
Orbital parameters
Reference system	Geocentric
Regime	LEO
Semi-major axis	6,872.02 km (4,270.08 mi)[3]
Eccentricity	0.0005028[3]
Perigee altitude	497 km (309 mi)[3]
Apogee altitude	504 km (313 mi)[3]
Inclination	97.87 degrees[3]
Period	94.49 minutes[3]
RAAN	113.04 degrees[3]
Argument of perigee	99.35 degrees[3]
Mean anomaly	15.24 degrees[3]
Mean motion	15.24[3]
Epoch	25 January 2015, 02:44:46 UTC[3]
DigitalGlobe fleet ← QuickBird GeoEye-1 →

WorldView-1 (WV 1) is a commercial Earth observation satellite owned by DigitalGlobe. WorldView-1 was launched on 18 September 2007, followed later by the WorldView-2 in 2009.^[4] 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.^[5]

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.^[5]

Design

Ball Aerospace built the WorldView-1 satellite bus and camera using an 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.^[5]

Launch

• Launch Date: 18 September 2007^[6]
• Launch Time: 18:35 UTC (2:35 p.m. EDT)
• Launch Vehicle: Delta II 7920-10C, s/n D-326
• Launch Site: Space Launch Complex 2 West, Vandenberg Air Force Base, California^[2][7]

See also

• 2007 in spaceflight

References

External links

• WorldView-1 at Digitalglobe.com

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