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]
| 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
GeoEye-1 →
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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]
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]
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