Plotted entries from OPSLOG files in VIRCAM report IQ_Z_AVG, plot 3 (data set det_rms):
(DATE changes at 21:00 UT or MJD-OBS = xxx.875)
DATE       	MJD-OBS		det_ID     	values
====================================================
2013-05-02	56414.958310	RMS				0.0419533
2013-05-03	56415.957997	RMS				0.0450642
2013-05-04	56416.957560	RMS				0.0922549
2013-05-05	56417.952859	RMS				0.0354392
2013-05-06	56418.968182	RMS				0.0233456
2013-05-07	56419.981562	RMS				0.0260254
2013-05-08	56420.957012	RMS				0.0996379
2013-05-09	56421.955571	RMS				0.10454
2013-05-10	56422.960324	RMS				0.0239002
2013-05-11	56423.958667	RMS				0.0287138
2013-05-12	56424.952859	RMS				0.0310136
2013-05-13	56425.953401	RMS				0.020895