@InProceedings{OrlandoKugaRozeYama:2005:StDaCo,
               author = "Orlando, Valcir and Kuga, H{\'e}lio Koiti and Rozenfeld, Pawel 
                         and Yamaguti, Wilson",
          affiliation = "Instituto Nacional de Pesquisas Espaciais, Divis{\~a}o de 
                         Mecanica Espacial e Controle (INPE, DMC)",
                title = "Study of data collecting satellite constellation",
            booktitle = "Proceedings...",
                 year = "2005",
                pages = "247--254",
         organization = "International Workshop on Satellite Constellations and Formation 
                         Flying, (IWSCFF), 4.",
             abstract = "The Brazilian Environrnental Data Collection System, currently 
                         operated by INPE, is constituted by three satellites (SCDl , SCD2 
                         and CBERS2), two data receiving stations (Cuiaba and A1cantara), 
                         more than 600 Data Collecting Platforms (DCPs) installed over 
                         Brazil, and a data collection mission center (Cachoeira Paulista). 
                         The system enjoys a growing interest in the user's community as 
                         can be seen by the steady growth in number of the DCPs deployed 
                         over Brazil. However, the current system cannot assure fully 
                         satisfactory time regularity of the cOllected data for new 
                         applications. In addition, SCD 1 and SCD2, although presenting a 
                         very good functional performance, have exceeded their nominal 
                         lifetime. In order to improve this system, a low cost 
                         constellation of 3 small spin stabilized satellites was proposed 
                         in a previous work. It considered 3 orbital planes separated by 
                         120 degrees in the right ascension of the ascending node (RAAN), 
                         with only one satellite per orbit plane and 30 degrees 
                         inclination. In order to improve the system performance and to 
                         extend the system use for new real time applications such as 
                         waming systems, this paper presents proposals to reduce the 
                         revisit time to around 16 minutes, for any single DCP installed in 
                         the Brazilian territory, by using a satellite constellation with 
                         four satellites per plane, providing almost continuous coverage.",
  conference-location = "S{\~a}o Jos{\'e} dos Campos",
      conference-year = "14-16 Feb",
           copyholder = "SID/SCD",
             language = "en",
         organisation = "Instituto Nacional de Pesquisas Espaciais - INPE",
           targetfile = "DOCUMENT.PDF",
        urlaccessdate = "11 maio 2024"
}