SIMBAD query result

Please have a look at the "Dictionary of Nomenclature"

Result of query: info cati 1E 1224.0+2007

.

 [Class]      Acronym  (Explanation)   . . . . . . . . . in Simbad, use:
 [X]          E (Einstein obs.)  . . . . . . . . . . . . 1E HHMM+DD.d
                                                      or 1E HHMM.m+DDMM
                                                      or 1E HHMMSS+DDMM.m
 [X]          1E (Einstein obs. 1st version) . . . . =E= 1E HHMM+DD.d
                                                      or 1E HHMM.m+DDMM
                                                      or 1E HHMMSS+DDMM.m
=[X]          EMSS (Extended Medium Sensitivity Survey) =E= 1E HHMM.m+DDMM
 [X]          IE (Erroneously printed for 1E)  . . . . . 1E HHMM+DD.d
                                                      or 1E HHMM.m+DDMM
                                                      or 1E HHMMSS+DDMM.m
=[X]          MS (Medium Sensitivity survey) . . . . =E= 1E HHMM.m+DDMM
=   in col.1 means that the list is COMPLETELY incorporated in Simbad
=E= indicates catalogues available in electronic form at CDS