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
====================================================
2013-05-13	56426.440796700000000	CHIP2.INT1	17.1237373352051
2013-05-14	56427.438374520000000	CHIP2.INT1	27.1893939971924
2013-05-15	56428.451996040000000	CHIP2.INT1	16.3257579803467
2013-05-16	56429.362675440000000	CHIP2.INT1	21.3005053202311
2013-05-17	56430.032178340000000	CHIP2.INT1	24.0808086395264
2013-05-17	56430.368332830000000	CHIP2.INT1	23.7373739878337