Plotted entries from OPSLOG files in FORS1 report BIAS_ron_raw, plot 1, data set parC1hm:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-19 54789.405851 4.79763637811637	parC1hm
2008-11-20 54790.402879 4.7947666538311	parC1hm
2008-11-21 54791.398897 4.80329589811439	parC1hm
2008-11-21 54791.414684 4.78974917019322	parC1hm
2008-11-22 54792.517168 4.78077158467943	parC1hm
2008-11-23 54793.394450 4.7697704553558	parC1hm
2008-11-24 54794.397766 4.79666594360238	parC1hm
2008-11-24 54794.412266 4.79112150492656	parC1hm
2008-11-26 54796.394837 4.76997257375958	parC1hm
2008-11-27 54797.377491 4.76749007819467	parC1hm
2008-11-27 54797.406517 4.7620382605637	parC1hm
2008-11-29 54799.423734 4.75826979096285	parC1hm