The nearest found maser object is G321.709+1.168 (offset by 21.6" from input coordinates)
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display_aladin("228.4525275","-56.4200173","G321.709+1.168","G321.709+1.168","15100-5613, 321.704+1.168, 321.71+1.17, G321.7209+01.1711","0")