It is possible to categorize Earth observation spacecraft into the following types: - **Weather satellites** are employed for monitoring and forecasting weather trends and providing actual weather data. GEO is ideal for different types of weather satellites, as it provides a constant viewpoint that enables scientists to track cloud patterns and predict their movements. - **Remote sensing satellites’** primary applications are all types of environmental monitoring and geographical mapping. Machines used for different [types of remote sensing](https://eos.com/blog/types-of-remote-sensing/) circle the Earth in one of three orbits: polar, non-polar LEO, or GEO. Geographical information system (GIS) satellites are a type of remote sensing spacecraft whose main function is to provide images appropriate for [GIS mapping](https://eos.com/blog/gis-mapping/) and further spatial analysis. ![[Pasted image 20231209224929.png]] ![[Pasted image 20231202163655.png | Spatial Resolution vs Revisit Time for various example satellites (Source: Satellite Applications Catapult 2017, adapted from EO21 Project)]] ![[Pasted image 20240112151811.png]]