Centro Espacial De Mulemba, Angola, the radio astronomer amateur Carlos Bettencourt de Faria pursued his lifelong passion and built a Space Centre at Mulemba (Observatório de Mulemba) using as materials little more than junk, and putting to use his admirable resourcefulness. Thanks to the privileged location of this private tracking facility, the images collected by the satellites that came into view of the station in three or four sequential passages allowed for the construction of global mosaics of the African continent.
NASA, through the Goddard Space Flight Center, supplied the Mulemba Space Centre with regular bulletins, with the schedules of the polar orbits of a number of satellites which collected images of the surface of the Earth and sent them back by VHF radio.