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A comprehensive list of Earth-orbiting spacecraft with sensors used to collect imagery and measurements of the surface of the Earth. The list covers both public domain and private domain satellites, with name, status, agency, launch date, and description.
Google Earth is a web and computer program that renders a 3D globe with satellite images, aerial photography, and GIS data. Users can explore the Earth, add their own data, and view various features and tools, such as Voyager, Street View, and flight simulator.
Satellite imagery are images of Earth collected by imaging satellites operated by governments and businesses around the world. Learn about the history, applications, and data characteristics of satellite imagery, and see examples of different types of resolution and spectrum.
EarthCam.com is a website that offers live webcam views of places around the world, as well as webcam technology and services for various industries. Founded in 1996, EarthCam has documented many projects, events, and landmarks, such as the Statue of Liberty torch, Times Square, and the 9/11 Memorial.
Learn about the history, applications and types of satellites used for Earth observation from orbit, including spy satellites and weather satellites. Find out how they collect data, images and information for various purposes such as environmental monitoring, meteorology and cartography.
A weather satellite or meteorological satellite is a type of Earth observation satellite that is primarily used to monitor the weather and climate of the Earth. Learn about the first weather satellite, Vanguard 2, and the different types and generations of weather satellites launched by various countries and regions.
Google Maps offers satellite imagery, street maps, 360° views, traffic conditions, and route planning for various modes of transportation. It was launched in 2005 by Google, after acquiring several companies that developed the technology and data behind it.
All satellites broadcast at the same two frequencies, 1.57542 GHz (L1 signal) and 1.2276 GHz (L2 signal). The satellite network uses a CDMA spread-spectrum technique [158]: 607 where the low-bitrate message data is encoded with a high-rate pseudo-random (PRN) sequence that is different for each satellite. The receiver must be aware of the PRN ...