V635 Cas outburst (update) The reported optical event seems to have been a transient one. YYMMDD(UT) mag observer 980915.949 152 (G. Poyner) 980919.926 152 (G. Poyner) 980921.007 153 (G. Poyner) 980930.839 153 (G. Poyner) 981003.073 154 (G. Poyner) 981009.047 152: (G. Poyner) 981009.928 153 (G. Poyner) 981011.851 143 (G. Poyner) 981011.910 145 (G. Poyner) 981012.053 148 (G. Poyner) 981012.083 147 (G. Poyner) 981012.890 153 (T. Kinnunen)