author = "Genaro, Andreia Fatima Sorice and Garcia, Ezio Castejon and 
                         Muraoka, Issamu and Conde, Kevin E. de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)}",
                title = "Long-term evolution of SCD-1 satellite temperatures based on 
                         comparative analysis of telemetric data measured in orbit",
              journal = "Journal of Heat Transfer",
                 year = "2016",
               volume = "138",
               number = "7",
                pages = "072803",
                month = "July",
             keywords = "thermal–optical property degradation, thermal design of 
                         satellites, optimization, SCD-1 satellite, long-term 
             abstract = "This paper presents results of the research investigation 
                         regarding the causes for temperature variation of the SCD-1 
                         (data-collection satellite) by analyzing its thermal behavior 
                         evolution throughout 13 years in orbit. SCD-1, the first satellite 
                         designed and built in Brazil, was launched in 1993 and is still in 
                         operation. A mathematical model has been developed to simulate 
                         thermal behavior of SCD-1 in orbit, which was used as a working 
                         tool during project design phase, and is presented here. 
                         Temperatures of SCD-1 in orbit have been monitored and recorded in 
                         the Control and Tracking Center (Sao Jos ~ e dos Campos, SP, 
                         Brazil) since its launch. An analysis carried out at the missions 
                         beginning showed that all the temperatures were within the ranges 
                         predicted in model. Over the years, the battery, which is the most 
                         temperature-sensitive equipment in the satellite, had an increase 
                         in temperature approaching upper limit. A method has been 
                         developed to investigate the causes of this upswing in which an 
                         optimization routine linked to the mathematical model corrects a 
                         selected set of parameters in order to adjust the theoretical 
                         temperature values to the experimental values. By means of this 
                         methodology, data from SCD-1 were analyzed from 1995 to 2005 
                         period and it was concluded that the rise in temperature was 
                         caused by an increase in internal battery heat dissipation and 
                         absorptivity in solar spectrum of some of the external satellite 
                         shielding, both consequences of a long-term degradation.",
                  doi = "10.1115/1.4033084",
                  url = "http://dx.doi.org/10.1115/1.4033084",
                 issn = "1528-8943 and 0022-1481",
             language = "en",
           targetfile = "genardo_long.pdf",
        urlaccessdate = "16 jan. 2021"