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Chunling Lu, Zhaoguang Bai, "Characteristics and Typical Applications of GF-1 satellite," Proceedings of the IGARSS (International Geoscience and Remote Sensing Symposium) 2015, Milan, Italy, July 26-31, 2015 When it comes to choosing between chaos and cheos, context is an important factor to consider. The meaning and implications of these two terms can vary depending on the situation in which they are used. Examples Of Different Contexts

Figure 4: Overview of Chinese institutions involoved in the CNSA EOSDC (Earth Observation System & Data Center, Ref. 3) While the rules for using chaos and cheos are generally straightforward, there are some exceptions to keep in mind. 1. Specific Terminology Gaofen-2 is a follow-on mission of the Gaofen-1technology demonstration mission, a series of high-resolution optical Earth observation satellites of CNSA (China National Space Administration), Beijing, China. GF-2 is part of the CHEOS (China High Resolution Earth Observation System) family with the objective to provide high accuracy geographical mapping, land and resource surveying, environment change monitoring, near realtime observation for disaster prevention and mitigation, as well as for agriculture and forest estimation. 1)Ming Li , Teng Pan, Hui Guan, Hongyu Liu, Ji Gao, "Gaofen-2 mission introduction and characteristics," Proceedings of the 66 th International Astronautical Congress (IAC 2015), Jerusalem, Israel, Oct.12-16, 2015, paper: IAC-15-B1.2.7 Provide global application service in the fields of agriculture, disaster, resource and environment, etc. DongJing Cao, Haibin Jiang, Wei Huang, "The techniques and in-orbit application of GF-2 satellite camera," Proceedings of the 67th IAC (International Astronautical Congress), Guadalajara, Mexico, Sept. 26-30, 2016, paper: IAC-16,B1,3,5 Cunling Lu, Zhaoguang Bai, Changjun Li, Damin Li, "GF-1 satellite high resolution & wide swath system design and technology characteristics," Proceedings of the 65 th International Astronautical Congress (IAC 2014), Toronto, Canada, Sept. 29-Oct. 3, 2014, paper: IAC-14-B4.4.2

China's National Satellite Ocean Application Center of the Ministry of Natural Resources, together with related departments, will take responsibility for on-orbit testing. The satellite was developed by the China Academy of Space Technology (CAST) and features upgrades over the first Gaofen 3, including optimized imaging, improved ship-positioning technology and real-time onboard processing that makes imagery available much faster than transmitting raw data does. Ultimately, the choice between using chaos and cheos may come down to personal preference. While there are general guidelines for usage, writers are free to use whichever term they feel best suits their writing style and the context of their work. Practice Exercises CHEOS was approved in 2010 with the goal of boosting Chinese satellite imaging capabilities to deliver real-time, all-weather global Earth observation data on land use, environmental and ocean monitoring, disaster response, forecasting and more. The payload was only revealed after launch, with speculation that the Long March 3B would carry a ChinaSat communications or Beidou navigation satellite. Gaofen 3 (02) joins the first Gaofen 3 satellite, which China launched into a similar orbit in August 2016, to form a constellation that uses radar to study both the land and the sea. The pair will be used for marine disaster prevention and mitigation, dynamic marine environment monitoring, environmental protection, water conservancy, agriculture and meteorology.Chunling Lu, Zhaoguang Bai, "GF‐1 Satellite On‐Orbit Test and Evaluation," Proceedings of the 4S (Small Satellites Systems and Services) Symposium, Port Petro, Majorca Island, Spain, May 26-30, 2014 EOSDC-CNSA facilitates and provides GF-1 data to various clients including tens of national ministries and agencies, local governments, research institutions, universities, enterprises and organizations in China. EOSDC-CNSA is eager to distribute Gaofen data in international cooperation agreements (Ref. 3). The satellite is configured with two 2 m barrel-mounted panchromatic/8 m MS (Multispectral) cameras, and a set of 4 WFIs (Wide Field Imagers) with 16 m MS medium-resolution and a combined swath of 830 km. The revisit frequency of the spacecraft is ≤4 days and the observation range of the mission covers a region between 80ºN to ~80ºS. The data of the GF-1 mission are being used in the following application areas: land resource investigation, mineral resource management, atmospheric and water environment quality monitoring, and natural disaster emergency response and monitoring.