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 | |
| Bus | BCP-5000 |
| Manufacturer | Ball Aerospace |
| Launch mass | 2,500 kilograms (5,500 lb) |
| Dimensions | 3,6 m x 2,5 m |
| Power | 3200 watts |
| Start of mission | |
| Launch date | September 18, 2007, 18:35:00 UTC |
| Rocket | Delta II 7920-10C |
| Launch site | Vandenberg SLC-2W |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | LEO |
| 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]
Contents
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
- Launch Date: September 18, 2007
- Launch Time: 1835 GMT (2:35 p.m. EDT)
- Launch Vehicle: Delta II
- Launch Site: Vandenberg Air Force Base, California
See also
References
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