Plotted entries from OPSLOG files in VIRCAM report DARKMED_1_120_AVG, plot 3 (data set det_rms):
(DATE changes at 21:00 UT or MJD-OBS = xxx.875)
DATE       	MJD-OBS		det_ID     	values
====================================================
2012-05-05	56053.407683	RMS				29.8275
2012-05-06	56054.437844	RMS				29.0877
2012-05-07	56055.420043	RMS				29.2642
2012-05-08	56056.451720	RMS				32.5126
2012-05-09	56057.477951	RMS				25.9652
2012-05-10	56058.443308	RMS				26.0388
2012-05-11	56059.446886	RMS				29.9082
2012-05-12	56060.393943	RMS				25.5923
2012-05-13	56061.379335	RMS				22.8519
2012-05-14	56062.383518	RMS				23.3271
2012-05-15	56063.428805	RMS				26.8632
2012-05-16	56064.431732	RMS				28.2736
2012-05-17	56065.425124	RMS				28.171
2012-05-18	56066.418050	RMS				27.298
2012-05-19	56067.430581	RMS				28.2359
2012-05-20	56068.429124	RMS				25.8481
2012-05-21	56069.423190	RMS				27.5026
2012-05-22	56070.432197	RMS				25.0034
2012-05-22	56070.451900	RMS				24.2774