8 Replies to “Contest #577 Hint”

  1. A difficult one …

    Jicamarca Radio Observatory
    Peru
    11° 57′ 5″ S, 76° 52′ 27.52″ W

  2. 11°57’05.82″ S 76°52’27.33″ W
    Jicamarca Radio Observatory,
    Cercado de Lima, Peru

  3. Jicamarca Ionospheric Radio Observatory
    Luringancho Lima, Perú

    11°57’05.82″ S 76°52’27.33″ W

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