The nearest found maser object is G20.433-0.344 (offset by 0.4" from input coordinates)
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display_aladin("277.3981085","-11.2650000","G20.433-0.344","G20.433-0.344","G20.433-0.344-1612A, G20.433-0.344-1612B, IRAS 18268-1117, OH020.433-00.344, OH20.4-0.3, IRAS18268-1117 msx, OH20.4-0.3","0")