WorldView-1
WorldView-1 (WV 1) is a commercial earth observation satellite owned by DigitalGlobe. WorldView-1 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]
Mission type | Earth observation |
---|---|
Operator | DigitalGlobe |
COSPAR ID | 2007-041A |
SATCAT no. | 32060 |
Website | DigitalGlobe WorldView-1 |
Mission duration | Planned: 7.25 years Elapsed: 13 years, 4 months, 19 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
- "WorldView 1 (WV 1)". Gunter's Space Page. Retrieved 13 October 2016.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 6 July 2014.
- "WORLDVIEW 1 Satellite details 2007-041A NORAD 32060". N2YO. 25 January 2015. Retrieved 25 January 2015.
- "DigitalGlobe announces Ball building WorldView 2 satellite". Spaceflight Now. Retrieved 2 February 2007.
- "DigitalGlobe Successfully Launches Worldview-1". DigitalGlobe.
- "WorldView-1 Data Sheet" (PDF). DigitalGlobe. Retrieved 7 January 2019.
- "WorldView-1 Satellite Imagery". Apollo Mapping. Retrieved 8 October 2018.