KZ Hya: AAVSO observations

I filter the AAVSO data for Observer SQL, so as to minimize the dispersion in magnitudes. I obtain 45 measurements for year 2000. After the heliocentric corrections, I fold the data with my T0, P0 ephemeris. The result is:


The maximum is late by 0.14+/-0.06 period, the average epoch is 2451627.