Observing Notes - 07/30/2017 Observatory: WIRO Observers : Cristilyn Cortez, Aylin McGough, Jackson Cole Notes: - We took only exposures in z', as the exposure times for u' were getting prohibitively long in order to get adequate counts. - We took no flats. The sky had patchy clouds earlier in the evening. Looking at the weather for tomorrow night, we are planning on using the z' flats from tomorrow night for tonight's z' data.