X Leo outburst (fading) YYMMDD(UT) mag observer 981011.483 <143 (G. Hanson) 981012.442 <135 (G. Hanson) 981013.160 <130 (B. H. Granslo) 981015.160 <128 (T. Kinnunen) 981016.160 <128 (T. Kinnunen) 981016.160 <135 (B. H. Granslo) 981016.467 <135 (G. Hanson) 981017.130 <135 (T. Kinnunen) 981019.472 <143 (G. Hanson) 981020.160 <132 (B. H. Granslo) 981023.471 <143 (G. Hanson) 981024.180 <135 (R. Fidrich) 981024.514 <143 (G. Hanson) 981027.724 <123 (R. Stubbings) 981028.462 130 (G. Hanson) 981028.742 123 (R. Stubbings) 981029.442 125 (G. Hanson) 981031.448 134 (R. J. Modic) 981031.738 134 (R. Stubbings)