Worldview-3
Mission and sensor parameters
Launched on the 13 August 2014, Worldview-3 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, 8-Bands VIS-NIR, and 8-Bands SWIR products are part of the Worldview-3 offer. In the International Charter, Worldview-3 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-3 mission.
| Parameter | Specifications |
|---|---|
| EO Mission | Worldview-3 |
| Providing Agency | DigitalGlobe |
| Date of launch | 2014-08-13 |
| Temporal coverage | 2014-09-01 - present |
| Mission status | On Going |
| Mission Life Expected | 12 years |
| Orbit Type | Sun-synchronous |
| Equator crossing Time | 1:30 PM descending Node |
| Orbit Height | 617 km |
| Orbit Period | 97 min |
| Revisit Frequency | <1.0 day (1 m GSD ), 4.5 days at 20° off-nadir or less |
| Nominal Swath Width | 13.1 km at nadir |
Sensor specifications
Below specifications of the WV-3 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, SWIR) |
| 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 |
| SWIR1 spectral range | 1195 - 1225 nm |
| SWIR2 spectral range | 1550 - 1590 nm |
| SWIR3 spectral range | 1640 - 1680 nm |
| SWIR4 spectral range | 1710 - 1750 nm |
| SWIR5 spectral range | 2145 - 2185 nm |
| SWIR6 spectral range | 2185 - 2225 nm |
| SWIR7 spectral range | 2235 - 2285 nm |
| SWIR8 spectral range | 2295 - 2365 nm |
| Resolution | Very High Resolution - O-VHR (0 - 1m) |
| GSD | 31 cm (PAN), 1.25 m (MS), 3.7 m (SWIR) at nadir |
| Dynamic Range | 11-bits per pixel |
In total Worldview-3 spectral Bands are 29:
-
Panchromatic
-
8-band multispectral (coastal, blue, green, yellow, red, red edge, NIR-1 and NIR-2)
-
8-band shortwave infrared (SWIR)
-
12-band CAVIS (corrects for Clouds, Aerosols, Vapors, Ice and Snow)
Worldview-3 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 Natural Color | pan-sharpened Blue, Green, Red |
| 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 |
The 4-Bands Multispectral, 8-Bands Multispectral products are the ones often received in the Charter.
Ingested format
Information extracted from product annotation included in the STAC item of a Worldview-3 dataset are listed below.
Properties
STAC item content about properties for a Worldview-3 8-Bands Multispectral Dataset is the following:
"properties": {
"platform": "worldview-3",
"constellation": "worldview-3",
"mission": "worldview-3",
"instruments": [
"msi"
],
"sensor_type": "optical",
"gsd": 0.00001476469494,
"datetime": "2022-06-23T06:19:12Z",
"created": "2022-06-23T17:17:06.7569561Z",
"updated": "2022-09-01T11:13:35.4086091Z",
"title": "WORLDVIEW-3 MSI LV1B 2022-06-23 06:19:12",
"providers": [
{
"name": "USGS",
"roles": [
"licensor"
]
}
],
"license": "proprietary",
"disaster:call_ids": [
876
],
"disaster:resolution_class": "VHR",
"cpe:cos2_id": "876-USGS-WORLDVIEW_3-urn_ogc_def_EOP_USGS__WORLDVIEW_3_WV03N33_174861E069_5258332022062300000000MS00",
}
View
STAC item content about View Geometry for a Worldview-3 Dataset is the following:
"properties": {
"view:sun_azimuth": 119.7,
"view:sun_elevation": 72.8
}
Processing
STAC item content about Processing for a Worldview-3 Dataset is the following:
"properties": {
"processing:level": "LV1B"
}
Geometry
STAC item content about Geometry for a Worldview-3 Dataset is the following:
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
69.4428607,
33.1079874
],
[
69.6181767,
33.1079874
],
[
69.6181767,
33.2277143
],
[
69.4428607,
33.2277143
],
[
69.4428607,
33.1079874
]
]
]
},
"bbox": [
69.4428607,
33.1079874,
69.6181767,
33.2277143
]
Assets
STAC item content about assets (annotation, quicklooks and spectral bands files harvested from the source product) and EO bands for a Worldview-3 8-Bands Multispectral Dataset is the following:
"assets": {
"manifest": {
"type": "application/xml",
"roles": [
"metadata"
],
"href": "https://.../WV03N33_174861E069_5258332022062300000000MS00/manifest.XML",
"filename": "vendor_metadata/22JUN23061912-M1BS-506523462020_01_P002.XML",
"file:size": 921364
},
"overview": {
"type": "image/jpeg",
"roles": [
"overview"
],
"href": "https://.../WV03N33_174861E069_5258332022062300000000MS00/overview.jpg",
"filename": "WV03N33_174861E069_5258332022062300000000MS00_BR005003002.jpg",
"file:size": 109235
},
"metadata": {
"type": "text/plain",
"roles": [
"metadata"
],
"href": "https://.../WV03N33_174861E069_5258332022062300000000MS00/metadata.txt",
"filename": "WV03N33_174861E069_5258332022062300000000MS00_DR005003002.txt",
"file:size": 1954
},
"pms": {
"type": "image/tiff",
"roles": [
"data",
"dn"
],
"href": "https://.../WV03N33_174861E069_5258332022062300000000MS00/pms.tif",
"filename": "WV03N33_174861E069_5258332022062300000000MS00_GR005003002.tif",
"file:size": 1540653448,
"gsd": 0.00001476469494,
"proj:shape": [
7168,
11264
],
"eo:bands": [
{
"name": "coastal",
"common_name": "coastal",
"center_wavelength": 0.4274,
"solar_illumination": 1757.89,
"full_width_half_max": 0.02025
},
{
"name": "blue",
"common_name": "blue",
"center_wavelength": 0.4819,
"solar_illumination": 2004.61,
"full_width_half_max": 0.027
},
{
"name": "green",
"common_name": "green",
"center_wavelength": 0.5471,
"solar_illumination": 1830.18,
"full_width_half_max": 0.0309
},
{
"name": "yellow",
"common_name": "yellow",
"center_wavelength": 0.6043,
"solar_illumination": 1712.07,
"full_width_half_max": 0.01905
},
{
"name": "red",
"common_name": "red",
"center_wavelength": 0.6601,
"solar_illumination": 1535.33,
"full_width_half_max": 0.02925
},
{
"name": "rededge",
"common_name": "rededge",
"center_wavelength": 0.7227,
"solar_illumination": 1348.08,
"full_width_half_max": 0.01935
},
{
"name": "nir08",
"common_name": "nir08",
"center_wavelength": 0.824,
"solar_illumination": 1055.94,
"full_width_half_max": 0.0502
},
{
"name": "nir09",
"common_name": "nir09",
"center_wavelength": 0.9136,
"solar_illumination": 858.77,
"full_width_half_max": 0.04445
}
],
"raster:bands": [
{
"scale": 0.29778273135802463,
"offset": -7.154
},
{
"scale": 0.29703507777777777,
"offset": -4.189
},
{
"scale": 0.19319452233009712,
"offset": -3.287
},
{
"scale": 0.16544251968503937,
"offset": -1.816
},
{
"scale": 0.23244964615384614,
"offset": -1.35
},
{
"scale": 0.1535373850129199,
"offset": -2.617
},
{
"scale": 0.1615098529880478,
"offset": -3.752
},
{
"scale": 0.1110618040494938,
"offset": -1.507
}
]
},
"thumbnail": {
"type": "image/jpeg",
"roles": [
"thumbnail"
],
"title": "Acquisition Thumbnail",
"href": "https://.../WV03N33_174861E069_5258332022062300000000MS00/thumbnail.jpg"
}
}
Product Calibration
For Worldview-3 products calibration refer to the Optical Products Calibration (OPT-Calib) service and the calibration sheet available here.