SIMBAD query result

Please have a look at the "Dictionary of Nomenclature"

Result of query: info cati CXO J104806.2+123534

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 [Class]      Acronym  (Explanation)   . . . . . . . . . in Simbad, use:
 [X]          CX (Chandra X-ray) . . . . . . . . . . . . CXO JHHMMSS.s+DDMMSS
 [X]          CXO (Chandra X-ray Observatory)  . . . =E= CXO JHHMMSS.s+DDMMSS
 [X(LDN 1251B)] CXO (Simon 2009) . . . . . . . . . . =E= [S2009b] {CXO} NN
=E= indicates catalogues available in electronic form at CDS