Plotted entries from OPSLOG files in VIMOS report SLOPE_HRo, plot 3, data set parslQ3:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-19 54789.583793 -0.00165026030642545	parslQ3
2008-11-20 54790.568157 -0.00166584374359058	parslQ3
2008-11-21 54791.660054 -0.00189309971425453	parslQ3
2008-11-22 54792.612165 -0.00177829010168596	parslQ3