Before checking elevation, etc the main thing you need to look at is the area of coverage (Footprint). Nilesat is showing that ALL their spotbeams targeted towards "Middle East."
Astra sats are high powered. If you look at there footprint on Lyngsat they show coverage off the coast of Africa ( to Canarias). Brazil is closer to that side on the Atlantic. The guaranteed reception for footprint coverage (Astra-"Wide", "1-KR") stops on the map at 40's. However in Brazil if they have the elevation coverage, using 8M dish (hugh), there is residual sigs lower than 40's that may leak over that coulsd be possible.