Plotted entries from OPSLOG files in CRIRES report DARKRON, plot 5 (data set med_par_ch5):
(DATE changes at 21:00 UT or MJD-OBS = xxx.875)
DATE       	MJD-OBS		det_ID     	values
====================================================
2012-02-05	55963.434105	CHIP1.INT1	1.73469969870137
2012-02-06	55964.351352	CHIP1.INT1	1.85808873381727
2012-02-07	55965.363533	CHIP1.INT1	1.80474719414821
2012-02-08	55966.362333	CHIP1.INT1	1.78489619790791
2012-02-09	55967.850451	CHIP1.INT1	1.68645668449529
2012-02-10	55968.437699	CHIP1.INT1	1.71456977214054