Plotted entries from OPSLOG files in FORS1 report ZEROPOINTS_BH, plot 1, data set parC1:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-17 54787.994055 28.5329407778704	parC1
2008-11-20 54790.996385 28.551376253412	parC1
2008-11-21 54791.997896 28.5029091959559	parC1
2008-11-22 54792.004678 28.5316952477423	parC1