Plotted entries from OPSLOG files in ISAAC report FLATLAMP, plot 8, data set p_M_SK_S1:

DATE       MJD-OBS      parameter values
==========================================================================
2008-11-19 54789.429068 2275.833333	p_M_SK_S1
2008-11-20 54790.487802 2251.633382	p_M_SK_S1