Plotted entries from OPSLOG files in CRIRES report DARKMED, plot 5 (data set med_par_ch5):
(DATE changes at 21:00 UT or MJD-OBS = xxx.875)
DATE       	MJD-OBS		det_ID     	values
====================================================
2013-05-14	56427.438374520000000	CHIP1.INT1	13.0555553436279
2013-05-15	56428.451996040000000	CHIP1.INT1	7.02272725105286
2013-05-16	56429.362675440000000	CHIP1.INT1	10.1338381767273
2013-05-17	56430.032178340000000	CHIP1.INT1	11.0454546610514
2013-05-17	56430.368332830000000	CHIP1.INT1	11.2146464983622
2013-05-18	56431.358605190000000	CHIP1.INT1	10.2575758298238