WorldView-3
WorldView-3
Launched on August 13 2014, WorldView-3 set a new standard for commercial satellites in-orbit. WorldView-3 allows you to differentiate between objects with far greater accuracy. Additionally, WorldView-3 was the first satellite capable of delivering true 31 cm resolution and collects the industry’s best very high resolution imagery quickly and reliably.
| Orbit | Altitude: 617 km Type: SunSync, 10:30 am descending Node Period: 97 min. |
| Life | Spec Mission Life: 7.25 years Estimated Service Life: 10 to 12 years |
| Spacecraft Size, Mass and Power | Size: 5.7 m (18.7 ft) tall x 2.5 m (8 ft) across 7.1 m (23 ft) across deployed solar arrays Mass: 2800 kg (6200 lbs) Power: 3.1 kW solar array, 100 Ahr battery |
| Sensor Bands | Panchromatic: 450 – 800 nm |
| 8 Multispectral: | Coastal: 400 – 450 nm Red: 630 – 690 nm Blue: 450 – 510 nm Red Edge: 705 – 745 nm Green: 510 – 580 nm Near-IR1: 770 – 895 nm Yellow: 585 – 625 nm Near-IR2: 860 – 1040 nm |
| 8 SWIR Bands: | SWIR-1: 1195 – 1225 nm SWIR-5: 2145 – 2185 nm SWIR-2: 1550 – 1590 nm SWIR-6: 2185 – 2225 nm SWIR-3: 1640 – 1680 nm SWIR-7: 2235 – 2285 nm SWIR-4: 1710 – 1750 nm SWIR-8: 2295 – 2365 nm |
| 12 CAVIS Bands: | Desert Clouds: 405 – 420 nm Water-3: 930 – 965 nm Aerosol-1: 459 – 509 nm NDVI-SWIR: 1220 – 1252 nm Green: 525 – 585 nm Cirrus: 1365 – 1405 nm Aerosol-2: 635 – 685 nm Snow: 1620 – 1680 nm Water-1: 845 – 885 nm Aerosol-3: 2105 – 2245 nm Water-2: 897 – 927 nm Aerosol-3: 2105 – 2245 nm |
| Sensor Resolution(or GSD, Ground Sample Distance; off-nadir is geometric mean) | Panchromatic Nadir: 0.31 m 20° Off-Nadir: 0.34 m Multispectral Nadir: 1.24 m 20° Off-Nadir: 1.38 m SWIR Nadir: 3.70 m 20° Off-Nadir: 4.10 m CAVIS Nadir: 30.00 m |
| Dynamic Range | 11-bits per pixel Pan and MS; 14-bits per pixel SWIR |
| Swath Width | At nadir: 13.1 km |
| Attitude Determination and Control | Type: 3-axis Stabilized Actuators: Control Moment Gyros (CMGs) Sensors: Star trackers, precision IRU, GPS |
| Pointing Accuracy and Knowledge Accuracy: | Pointing Accuracy and Knowledge Accuracy: |
| Knowledge: | Supports geolocation accuracy below |
| Retargeting Agility | Time to Slew 200 km: 12 sec |
| Onboard Storage | 2199 Gb solid state with EDAC |
| Communications | Image & Ancillary Data: 800 and 1200 Mbps X-band Housekeeping: 4, 16, 32, or 64 kbps real time, 524 kbps stored, X-band Command: 2 or 64 kbps S-band |
| Max Contiguous Area Collected in a Single Pass (30° off-nadir angle) | Mono: 66.5 km x 112 km (5 strips) Stereo: 26.6 km x 112 km (2 pairs) |
| Revisit Frequency (at 40°N Latitude) | 1 m GSD: <1.0 day 4.5 days at 20° off-nadir or less |
| Geolocation Accuracy (CE90) | Predicted <3.5 m CE90 without ground control |
| Capacity | 680,000 km2 per day |