SU UMa superoutburst (fading) The SU UMa-type prototype SU UMa has apparently entered the rapid decline stage of a superoutburst. Continued observations are encouraged. YYMMDD(UT) mag observer 990112.491 11.36C (Ouda team) 990112.573 111 (T. Watanabe) 990112.680 113 (H. Maehara) 990113.191 114 (E. Muyllaert) 990113.439 11.40C (Ouda team) 990113.713 115 (T. Watanabe) 990113.974 114 (J. Ripero) 990114.144 117 (G. Comello) 990114.594 11.58C (Ouda team) 990115.126 120 (G. Comello) 990115.244 118 (E. Muyllaert) 990115.387 11.67C (Ouda team) 990115.580 115 (T. Watanabe) 990115.683 117 (H. Maehara) 990116.435 11.75C (Ouda team) 990116.438 115 (T. Watanabe) 990117.348 121 (R. J. Modic) 990117.478 11.86C (Ouda team) 990117.610 118 (T. Watanabe) 990117.810 120 (E. Muyllaert) 990117.903 121 (G. Comello) 990118.260 122 (E. Muyllaert) 990118.469 12.02C (Ouda team) 990118.571 118 (T. Watanabe) 990120.474 12.83C (Ouda team)