Plotted entries from OPSLOG files in VIMOS report IFUDISP_HRo, plot 3, data set parQ3:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-19 54789.583793 0.218269592911293	parQ3
2008-11-20 54790.568157 0.211502629795326	parQ3
2008-11-21 54791.660054 0.224286316536555	parQ3
2008-11-22 54792.612165 0.220900363955485	parQ3