2006CBET..393....2Q

R. Quimby and M. Sellers, University of Texas, add that SN 2006X appeared at mag about 15.3 on unfiltered CCD images taken on Feb. 7.31 UT with the 0.45-m ROTSE-IIIb telescope at the McDonald Observatory; the position for 2006X was measured as R.A. = 12h22m53s.88, Decl. = +15o48'31".9 (equinox 2000.0; uncertainty ± 0".6). SN 2006X was not detected in ROTSE-IIIb images taken Feb. 1.32 (limiting mag about 17.9) or in a co-addition of images taken between 2004 Dec. 11 and 2005 June 8 (limiting mag about 19.0).