The Geomagnetic Observatory Tatuoca was opened in August 1957 by Observatório Nacional (www.on.br). It is operated in collaboration with GFZ since 2015. In 2019, the observatory was admitted to the INTERMAGNET program.
More information on the observatory is available from [https://doi.org/10.5194/gi-6-367-2017|Morschhauser et al., 2017].