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@InProceedings{J˙lioFoAmbrFerrLour:2019:PrGrSe,
               author = "J{\'u}lio Filho, Ant{\^o}nio Cassiano and Ambrosio, Ana Maria 
                         and Ferreira, Maur{\'{\i}}cio Gon{\c{c}}alves Vieira and 
                         Loureiro, Geilson",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "The China-Brazil Earth Resources Satellite - CBERS-4A: a proposal 
                         for ground segment based on the space link extension protocol 
                         services",
                 year = "2019",
         organization = "International Astronautical Congress, 70.; IAF Space Operations 
                         Symposium",
             abstract = "The CBERS program is a unique partnership between Brazil and China 
                         in the space technical and scientific sector for the primary 
                         remote sensing data generation technology, this partnership 
                         agreement involves the National Institute for Space Research 
                         (INPE) and China Academy of Space Technology (CAST). The program 
                         is a family of remote sensing satellites CBERS (CBERS-1 and 2, 
                         CBERS-3 and 4) that brought significant scientific advances to 
                         Brazil. The INPE, using only the CBERS-4, has distributed for free 
                         over the internet, approximately 90,000 images. Their images are 
                         used in important fields such as controlling deforestation and 
                         burning in the Amazon, the monitoring of water resources, 
                         agriculture, urban growth, land use and education. It is also 
                         critical for large strategic national projects such as Measurement 
                         of Deforestation by Remote Sensing (PRODES) and Brazilian 
                         Real-Time Deforestation Detection (DETER). The next satellite, 
                         CBERS-4A, is due to be concluded in 2019, its will be placed in a 
                         sun-synchronous Low Earth Orbit. Their optical payloads will be 
                         operated in the visible spectrum with resolutions in the range of 
                         2 to 60 meters. As in previous missions, the Ground Segment is 
                         responsible for tracking and controlling of the satellites CBERS 
                         during the routine phase, including the orbit adjustment maneuvers 
                         to maintain the proper phase, that are made by Brazil, and by 
                         China, in alternating periods. In Brazil, the Ground Segment is 
                         comprised by the Satellite Control Center (SCC) - located in Sao 
                         Jos┤e dos Campos, the TT\&C Ground Stations of Cuiab┤a and 
                         Alcantara, the Mission Control Center, the Data Processing Center 
                         and the End User. The Ground Segment has more and more served as 
                         cross support and interoperability to space agencies, which 
                         requires an appropriate architecture to support them. The 
                         architecture proposal is based on Dynamic Management of the Space 
                         Link Extension (SLE) Protocol Services. These services are 
                         recommendations of the Consultative Committee for Space Data 
                         Systems (CCSDS) for cross support and have been adopted by several 
                         space agencies, for example: CNES, ESA, JAXA, NASA and INPE. This 
                         paper presents an overview of the CBERS Program, its science 
                         objectives and the CBERS-4A satellites ground segment. It will 
                         then describe a proposal for implementation an Architecture for 
                         Dynamic Management of the Space Link Extension Protocol Services 
                         to be applied as part of the Ground Segment at INPE. The designs 
                         status, the possible contributions for a reduction the cost of 
                         space missions and limitations are also presented.",
  conference-location = "Washington, DC",
      conference-year = "21-25 Oct.",
             language = "en",
           targetfile = "julio_china.pdf",
        urlaccessdate = "15 abr. 2021"
}


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