Plotted entries from OPSLOG files in CRIRES report DARKMED, plot 6 (data set med_par_ch6):
(DATE changes at 21:00 UT or MJD-OBS = xxx.875)
DATE       MJD-OBS      det_ID     values
====================================================
2010-03-15 55271.428935 CHIP2.INT1 33.95707003
2010-03-16 55272.433618 CHIP2.INT1 34.56818263
2010-03-17 55273.427520 CHIP2.INT1 33.56565603
2010-03-18 55274.433298 CHIP2.INT1 33.04545466
2010-03-18 55274.502663 CHIP2.INT1 25.50505066
2010-03-19 55275.432955 CHIP2.INT1 33.50252469
2010-03-20 55276.440992 CHIP2.INT1 33.83333333