Gaia15aao is ASASSN-15bk
ATel #7021; L. Wyrzykowski (Warsaw Observatory/IoA Cambridge)
on 3 Feb 2015; 12:09 UT
Credential Certification: Lukasz Wyrzykowski (wyrzykow@ast.cam.ac.uk)
The supernova Gaia15aao reported in ATEL #7014 was first discovered by the ASAS-SN group as ASASSN-15bk on 2015-01-19.62 (ATEL #6979) and classified spectroscopically (ATEL #6988) on 2015-01-25.
Gaia observation from 2015-01-12 preceded ASASSN's detection by about a week, however, the actual discovery in the Gaia data happened on 2015-01-26.