SN2000cx early photometry update YYYYMMDD(UT) mag observer 20000717.500 145:C (KAIT (from IAUC)) 20000718.399 143:C (KAIT (from IAUC)) 20000719.094 142:CR (J. M. Llapasset) 20000719.424 14.00V (Apache Point Observatory) 20000719.424 14.13B (Apache Point Observatory)