WorldView-1

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: 9 years, 10 months, 29 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 497 km (309 mi)[3]
Apogee 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

WorldView-1 is a commercial earth observation satellite owned by DigitalGlobe. It was launched 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

See also

References

  1. ↑ "WorldView 1 (WV 1)". Gunter's Space Page. Retrieved 13 October 2016.
  2. 1 2 McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 6 July 2014.
  3. 1 2 3 4 5 6 7 8 9 10 11 "WORLDVIEW 1 Satellite details 2007-041A NORAD 32060". N2YO. 25 January 2015. Retrieved 25 January 2015.
  4. ↑ "DigitalGlobe announces Ball building WorldView 2 satellite". Spaceflight Now. Retrieved 2 February 2007.
  5. 1 2 3 "DigitalGlobe Successfully Launches Worldview-1". DigitalGlobe.


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