Plotted entries from OPSLOG files in VIMOS report IFUDISP_HRo, plot 1, data set parQ2:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-19 54789.583793 0.191013770254848	parQ2
2008-11-20 54790.568157 0.190442864095472	parQ2
2008-11-21 54791.660054 0.187435749819575	parQ2
2008-11-22 54792.612165 0.187481540456399	parQ2