WorldView-1, launched September of 2007, is the most agile satellite ever flown commercially. The high-capacity, panchromatic imaging system features half-meter resolution imagery. Operating at an altitude of 496 kilometers, WorldView-1 has an average revisit time of 1.7 days and is capable of collecting up to 750,000 square kilometers (290,000 square miles) per day of half-meter imagery. The satellite is also equipped with state-of-the-art geolocation accuracy capabilities and exhibits stunning agility with rapid targeting and efficient in-track stereo collection
• Provides highly detailed imagery for precise map creation, change detection and in- depth image analysis,
• Allows the creation of accurate maps in remote areas, maximizing the utility of whatever resources are available
• Geolocation accuracy specification of 6.5 m CE90 at nadir, with actual accuracy in the range of 4.0 - 5.5 m CE90 at nadir, excluding terrain and off-nadir effects
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| Launch information | Date: September 18, 2007 Launch Vehicle: Delta 7920 (9 strap-ons) Launch Site: Vandenberg Air Force Base |
| Orbit | Altitude: 496 kilometers Type: Sun synchronous, 10:30 am descending node Period: 94.6 minutes |
| Mission life | 7.25 years, including all consumables and degradables |
| Spacecraft Size, mass and Power | 3.6 meters (12 feet) tall x 2.5 meters (8 feet) across 7.1 meters (23 feet) across the deployed solar arrays 2500 kilograms (5500 pounds) 3.2 kW solar array, 100 Ahr battery |
| Sensor bands |
Panchromatic |
| Sensor resolution | 0.50 meters Ground Sample Distance (GSD) at nadir 0.59 meters GSD at 25° off-nadir |
| Dynamic range Time Delay integration (TDi) | 11-bits per pixel 6 selectable levels from 8 to 64 |
| Swath Width | 17.6 kilometers at nadir |
| Attitude Determination and Control | 3-axis stabilized Actuators: Control Moment Gyros (CMGs) Sensors: Star trackers, solid state IRU, GPS |
| Pointing Accuracy and Knowledge | Accuracy: <500 meters at image start and stop Knowledge: Supports geolocation accuracy below |
| Retargeting Agility | Hızlanma: 2.5 deg/s/s Oran: 4.5 deg/s 300km’yi geçme süresi: 10.5 saniye |
| Data Storage Capacity: | 2199 gigabits solid state with EDAC |
| Communication | Image and Ancillary Data: 800 Mbps X-band Housekeeping: 4, 16 or 32 kbps real-time, 524 kbps stored, X-band Command: 2 or 64 kbps S-band |
| Max Viewing Angle / Accessible ground Swath | Nominally +/- 45° off-nadir = 1,036 km wide swath Higher angles selectively available |
| Max Contiguous Area Collected in a Single Pass | 60 x 110 km mono 30 x 110 km stereo |
| Revisit Frequency | 1.7 days at 1 meter GSD or less 4.6 days at 25° off-nadir or less (0.59 meter GSD) |
| Geolocation Accuracy (Ce90%) | Specification of 6.5 m CE90 at nadir, with actual accuracy in the range of 4.0 - 5.5 m CE90 at nadir, excluding terrain and off-nadir effects With Registration to GCPs in Image: 2.0 meters (6.6 feet) |
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