MASTER-SAAO detected optical transient MASTER OT J024017.80-342736.3 at 02h 40m 17.80s -34d 27m 36.3s on 2017-02-16.827 UT with unfilterd m_OT=18.0. The reference image with m_OT=20.5 is on 2014-12-21.817 with mlim=21.5