Worldview-2
Mission and sensor parameters
Launched on the 8 October 2009, Worldview-2 is an operational earth imaging satellite which is part of the WorldView constellation (QuickBird, WorldView-1/-2/-3/-4 and GeoEye-1 satellites) and is owned by DigitalGlobe in the United States. Panchromatic, 4-Bands VIS-NIR, and 8-Bands VIS-NIR products are part of the Worldview-2 offer. In the International Charter, Worldview-2 data is gathered via VHR data provisioning of USGS (act as mission Owner in the Charter Governance).
Mission parameters
Table 1 provides a summary of the Worldview-2 mission.
| Parameter | Specifications |
|---|---|
| EO Mission | Worldview-2 |
| Providing Agency | DigitalGlobe |
| Date of launch | 2009-10-08 |
| Temporal coverage | 2009-11-01 - present |
| Mission status | On Going |
| Mission Life Expected | 12 years |
| Orbit Type | Sun-synchronous |
| Equator crossing Time | 10:30 PM descending node |
| Orbit Height | 770 km |
| Orbit Period | 100 min |
| Revisit Frequency | 1.1 days |
| Nominal Swath Width | 13.1 km at nadir |
Sensor specifications
Below specifications of the WV-2 Imager (WV110) optical earth observation sensor on board the Worldview-3 platform.
| Parameter | Specifications |
|---|---|
| Imager Type | Pushbroom with a 35k pixel dectector array for PAN and a 9,3k pixel detector array for MS bands |
| Imaging Mode | PAN and MS (VIS, NIR, RE) |
| Pan spectral range | 450 - 800 nm |
| Coastal spectral range | 400 - 450 nm |
| Blue spectral range | 450 - 510 nm |
| Green spectral range | 510 - 580 nm |
| Yellow spectral range | 585 - 625 nm |
| Red spectral range | 630 - 690 nm |
| Red Edge spectral range | 705 - 745 nm |
| NIR1 spectral range | 770 - 895 nm |
| NIR2 spectral range | 860 - 1040 nm |
| Resolution | Very High Resolution - O-VHR (0 - 1m) |
| GSD | 46 cm (PAN), 1.8 m (MS), at 20deg nadir |
| Dynamic Range | 11-bits per pixel |
Worldview-2 products are offered in multiple options as described in the following table:
| Parameter | Specifications |
|---|---|
| 4-Bands Multispectral | Blue, Green, Red, NIR1 |
| 4-Bands Pan-sharpened | Blue, Green, Red, NIR1 |
| 4-Bands Bundle | PAN, Blue, Green, Red, NIR1 |
| 3-bands Natural Color | pan-sharpened Blue, Green, Red |
| 3-bands Coloured Infrared | pan-sharpened Green, Red, NIR |
| 8-Bands Multispectral | COASTAL, Blue, Green, Yellow, Red, Red EDGE, NIR1, NIR2 |
| 8-Bands Bundle | PAN, COASTAL, Blue, Green, Yellow, Red, Red EDGE, NIR1, NIR2 |
Ingested format
Information extracted from product annotation included in the STAC item of a Worldview-2 dataset have a similar structure to the Worldview-3 available here.
Product Calibration
For Worldview-2 products calibration refer to the Optical Products Calibration (OPT-Calib) service and the calibration sheet available here.