The nearest found maser object is G20.015-0.660 (offset by 2.4" from input coordinates)
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display_aladin("277.4868810","-11.7818025","G20.015-0.660","G20.015-0.660","18271-1148, G20.015-0.661-1612A, G20.015-0.661-1612B, OH020.015-00.660","0")