The intranight optical DLCs of the LPCDQs monitored in the present study. For each night, the source name, the telescope used, the date, and the duration of monitoring are given at the top. The upper 3 panels show the DLCs of the LPCDQ relative to 3 comparison stars while the attached lower 3 panels show the star-star DLCs, where the solid horizontal lines mark the mean for each star-star DLC. The bottom panel gives the plots of seeing variation for the night, based on 3 stars monitored along with the blazar on the same CCD frame.