2012CBET.2970....2S

J. M. Silverman and A. V. Filippenko, University of California, Berkeley, report that inspection of a CCD spectrum (range 340-1000 nm), obtained on Jan. 3 UT with the Shane 3-m reflector (+ Kast spectrograph) at Lick Observatory, shows that PSN J14532301+0257431 = SN 2011jt is a type-Ia supernova. After removal of the host-galaxy recession velocity of 8334 km/s (from the Sloan Digital Sky Survey Data Release 1), they find the absorption minimum of the Si II 635.5-nm line to be blueshifted by about 14700 km/s. Cross-correlation with a library of supernova spectra using the "SuperNova IDentification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that the object is a normal type-Ia supernova about six days before maximum brightness.