Plotted entries from OPSLOG files in VIMOS report SLOPE_HRo, plot 2, data set parslQ1:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-19 54789.583793 0.000227768780147942	parslQ1
2008-11-20 54790.568157 0.000389878260141169	parslQ1
2008-11-21 54791.660053 0.000555830366317331	parslQ1
2008-11-22 54792.612165 0.000146455502805239	parslQ1