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We study the photometric behavior of the recurrent nova RS Oph by 58monitoring light curves (LCs), taken by 5 telescopes. All LCs show repeatingtime structures with some quasi-periods (QPs) in time scales from minutes tohours. In our previous work 97 QPs were detected in the LCs by local minimumsof structure functions and local maximums of auto-correlation functions. Thedistribution of the QPs shows modes at 8, 13, 21, 30, 48 and 73 min, where themode at 8 min is poorly unveiled. These modes follow a power function with base$1.55\approx 3/2$ with standard deviation 4.7%. This function predicts modesalso at 5.3 and 3.5 min, which are not detected in the full MLCs. In thepresent work we analyze simple small parts from high resolution LCs. We confirmthe QPs modes at 8.0, 5.3 and 3.5 min. Generally, we found 8 QP modes withregular logarithmic distribution in the time interval 3.5-73 min. We also showtypical intra-night evolutions of QP modes in the minute scale -- sharp orgradual transitions from one QP mode to other. In the end we find that theparts of the LCs carry out the properties of the whole LCs at short time scale.This lead to two well pronounces dependences - between the range deviation andstandard deviation of the LC, as well as between the quasi-period and therelevant level of the density function of the LC.

Intra-night flickering of RS Ophiuchi: III. Modes of quasi-periods in the minute scale and their evolution