SN2003O 20021015.28 <180C DRi SN2003O 20030118.96 170:C DRi SN2003O 20030120.15 169C SCH # A host galaxy of SN 2003O (3:38:09.13, +40:58:38.0 (J2000.0), offset # = 10"W, 21"S) is UGC 2798, a tilted open-spiral (SABbc) galaxy near # the Galactic plane (b = -11o.7). The SN is superimposed on the # outermost arm. The expected maximum for typical SN Ia is mag about # 16.4.