@InProceedings{ValleRamJanCecSaw:2007:SoObDu,
               author = "Valle, J. F. and Ramesh, R. and Janardhan, P. and Cecatto, 
                         Jos{\'e} Roberto and Sawant, Hanumant Shankar",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and Indian 
                         Institute of Astrophysics, Bangalore, India. and {Physical 
                         Research Laboratory} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Solar observations during solar minima with the Brazilian 
                         Decimetric Array – BDA",
            booktitle = "Proceedings...",
                 year = "2007",
         organization = "Latin-American Conference on Space Geophysics, 8. (COLAGE).",
             abstract = "The first phase of the Brazilian Decimetrc Array -BDA- has been 
                         successfully completed by the end of 2004. Presently, the BDA 
                         consist of 5 antennas laid over a distance of 216 meter in the E-W 
                         direction and located at a Longitude of 45°0\'20\{"} W and a 
                         Latitude of 22°41\'19\{"} S. The array operates in any selected 
                         frequency in the range of 1.2 to 1.7 GHz, with a time resolution 
                         of 100 ms and a spatial resolution of ~3 arc minute. The operating 
                         time is from 11- 19 UT. Solar observations are carried out in 
                         transit/tracking mode. Efforts are being made to use GPS 
                         satellites for phase and amplitude calibrations. Presently, strong 
                         radio sources like Cygnus-A and Taurus-A are being used for 
                         amplitude and phase calibration respectively. In this paper we 
                         will present preliminary results of solar observations such as one 
                         dimensional brightness temperature maps of the sun at local noon 
                         and day to day variations of its brightness temperatures at a 1.6 
                         GHz. The observed brightness temperature is ~ 0.5 - 3.5 x 105 K.",
  conference-location = "Merida, Mexico",
      conference-year = "11-17 July",
             language = "en",
        urlaccessdate = "02 maio 2024"
}