SIMBAD query result

Please have a look at the "Dictionary of Nomenclature"

Result of query: info cati XMMXCS J2215.0-1738

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 [Class]      Acronym  (Explanation)   . . . . . . . . . in Simbad, use:
 [ClG]        XMMXCS (XMM Cluster Survey)  . . . . . =E= XMMXCS JHHMM.m+DDMM
                                                      or XMMXCS JHHMMSS.s+DDMMSS.s
=E= indicates catalogues available in electronic form at CDS