On september 17th, 2007, Luis Augusto Machado from CTPEC/INPE, Brazil visited CNES in Paris. Discussions took place in the morning and dealt with the interest of the brazilian meteorologists for real time reception of the Megha-Tropiques data. In the afternoon Dr Machado gave a seminar at LMD Jussieu on "Observational Studies in Tropical Region: A contribution to Nowcasting and Precipitation Estimation".