WorldView-1
From Wikipedia, the free encyclopedia
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: 17 years, 7 months, 5 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 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 | |
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
References
External links
Wikiwand - on
Seamless Wikipedia browsing. On steroids.