FAQ in the satellite data industry provided by SkyWatch.
Earth observation is the act of monitoring the globe with remote sensors. GIS is a geographical information system that analyzes satellite data collected in an Earth observation project.
Remote sensing can provide fundamental, new scientific data or biophysical information such as x, y location, z evaluation or depth, biomass, temperature, moisture content, etc. Common use cases may include but are not limited to mapping, environmental monitoring, infrastructure monitoring, asset monitoring and more.
While both GPS and Earth observation use satellites, they are not the same thing. Global positioning systems (GPS) leverage navigation satellites that transmit a signal that a GPS-enabled device can decode and use to precisely determine its location. Earth observation satellites are equipped with sensors to capture images of and other data about Earth from space.
Satellites used for Earth observation circle around the globe so all countries can have geographical locations captured via satellite imagery. Countries that own satellites currently orbiting the Earth may include USA, China, Russia, Japan, India, Argentina, France, Finland, Germany, Taiwan, and various countries associated with the European Space Agency.
Commercial satellite imagery can be used to describe two different things. Sometimes, commercial satellite imagery is used to distinguish images captured by satellites operated by businesses from images captured by government-operated satellites, including those operated by space agencies such as NASA or ESA. Commercial satellite imagery can also be used to describe imagery that is being collected and used for commercial applications (such as agriculture, mining, oil and gas) versus imagery collected for government or military purposes.
Very high resolution (15 cm) is considered the highest quality image possible.
SkyWatch has the most up-to-date satellite images in the market. You can task images for specific geohprahical location and timeframe, or you can purchase archival imagery.
There are two common types of satellite images:
Optical images are taken using visible light, similar to how a camera works. These images show the natural colors of the earth's surface and are often used for mapping, land use analysis, and environmental monitoring.
Radar images are taken using radio waves. These images can penetrate clouds, fog, and darkness, and are often used for observing the earth's surface, weather forecasting, and military use cases.
Yes. Buying satellite images from an aggregator like SkyWatch grants you access to the world's top satellite providers with affordable prices.
Yes. You can access satellite data through SkyWatch, as it provides data options from the world's top satellite data providers.
The most powerful satellite imagery is 15 cm HD data. It is the highest definition available in the market.
Google maps offers high to very high satellite imagery, the resolutions ranges from 80-50 cm.
Remote sensing data can capture biophysical information, this could be as small as beetles or moisture content.
Yes. A car can be seen via satellite imagery so long as the resolution is high enough. The smaller the pixel, the clearer the image will be with the naked eye. Using non-optical imagery, such as hyperspectral imagery, can still detect cars as objects, but it's not visible to the average person. Resolution to detect the object can be from medium to high (3m-80cm data) and anything above would make the image fairly clear.
The highest resolution possible in the commercial satellite imagery market is 15 cm HD data.
80cm/pixel is considered high resolution.
This varies by the provider, but the cost of satellite imagery is less when acquired through an aggregator like SkyWatch.
You can view satellite data in optical and non-optical forms. When you purchase satellite data through SkyWatch, you can get tasked or archival data in a png or GeoTiff file. You may also download the API of the data collected from your purchase.
Satellite images on EarthCache are available only from the year 2000 onwards. EarthCache offers an archival suite that enables users to access past satellite images. Specific providers may have data before the year 2000, but this would be on a case-by-case basis. For data before the year 2000, you can reach out to us, and we can assist you in obtaining data from external providers who are not part of the EarthCache platform.