Plotted entries from OPSLOG files in VIRCAM report DARKMED_1_10011_AVG, plot 2 (data set det_all):
(DATE changes at 21:00 UT or MJD-OBS = xxx.875)
DATE       	MJD-OBS		det_ID     	values
====================================================
2013-05-19	56432.795071	DET1.CHIP1	1
2013-05-19	56432.795072	DET1.CHIP2	0.5
2013-05-19	56432.795073	DET1.CHIP3	1.5
2013-05-19	56432.795074	DET1.CHIP4	1
2013-05-19	56432.795075	DET1.CHIP5	0.5
2013-05-19	56432.795076	DET1.CHIP6	0.5
2013-05-19	56432.795077	DET1.CHIP7	0.5
2013-05-19	56432.795078	DET1.CHIP8	1
2013-05-19	56432.795079	DET1.CHIP9	0.5
2013-05-19	56432.795080	DET1.CHIP10	0
2013-05-19	56432.795081	DET1.CHIP11	0.5
2013-05-19	56432.795082	DET1.CHIP12	2
2013-05-19	56432.795083	DET1.CHIP13	2
2013-05-19	56432.795084	DET1.CHIP14	1
2013-05-19	56432.795085	DET1.CHIP15	0
2013-05-19	56432.795086	DET1.CHIP16	0.5
2013-05-20	56433.432461	DET1.CHIP1	0.2294921875
2013-05-20	56433.432462	DET1.CHIP2	0.3544921875
2013-05-20	56433.432463	DET1.CHIP3	0.5927734375
2013-05-20	56433.432464	DET1.CHIP4	0.578125
2013-05-20	56433.432465	DET1.CHIP5	-0.00390625
2013-05-20	56433.432466	DET1.CHIP6	-0.08984375
2013-05-20	56433.432467	DET1.CHIP7	-0.00390625
2013-05-20	56433.432468	DET1.CHIP8	-0.0908203125
2013-05-20	56433.432469	DET1.CHIP9	0.037109375
2013-05-20	56433.432470	DET1.CHIP10	-0.0966796875
2013-05-20	56433.432471	DET1.CHIP11	-0.068359375
2013-05-20	56433.432472	DET1.CHIP12	0.0673828125
2013-05-20	56433.432473	DET1.CHIP13	0.3896484375
2013-05-20	56433.432474	DET1.CHIP14	0.251953125
2013-05-20	56433.432475	DET1.CHIP15	-0.30078125
2013-05-20	56433.432476	DET1.CHIP16	-0.1396484375
2013-05-21	56434.414057	DET1.CHIP1	-0.669921875
2013-05-21	56434.414058	DET1.CHIP2	-0.560546875
2013-05-21	56434.414059	DET1.CHIP3	-0.333984375
2013-05-21	56434.414060	DET1.CHIP4	-0.3349609375
2013-05-21	56434.414061	DET1.CHIP5	-0.3076171875
2013-05-21	56434.414062	DET1.CHIP6	-0.3232421875
2013-05-21	56434.414063	DET1.CHIP7	-0.275390625
2013-05-21	56434.414064	DET1.CHIP8	-0.3935546875
2013-05-21	56434.414065	DET1.CHIP9	-0.1787109375
2013-05-21	56434.414066	DET1.CHIP10	-0.3916015625
2013-05-21	56434.414067	DET1.CHIP11	-0.0263671875
2013-05-21	56434.414068	DET1.CHIP12	-0.3125
2013-05-21	56434.414069	DET1.CHIP13	0.4560546875
2013-05-21	56434.414070	DET1.CHIP14	0.296875
2013-05-21	56434.414071	DET1.CHIP15	-0.16796875
2013-05-21	56434.414072	DET1.CHIP16	-0.0234375