Natal, Rio Grande do Norte
On June 14, 1969, an Aerobee 150 rocket, launched from Natal, Rio Grande do Norte, Brazil, obtained X-ray data during a scan of the Norma-Lupus-Circinus region that detected a well-isolated source at ℓ = 321.4±0.9° "b" = -0.5±2° (galactic), RA Dec within the constellation Circinus and referred to as Circinus XR-1 (Cir XR-1).