Plotted entries from OPSLOG files in FORS2 report BIAS_fp_raw, plot 1, data set parC1hm:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-18 54788.394476 0.	parC1hm
2008-11-19 54789.388601 0.	parC1hm
2008-11-19 54789.757297 0.	parC1hm
2008-11-19 54789.760792 0.	parC1hm
2008-11-19 54789.888860 0.	parC1hm
2008-11-20 54790.382118 0.	parC1hm