DataLabel	Date Time	Log Entry
GS-2005A-Q-6-28-003	2006-01-25 07:35:52	saw same background filter noise, moved filter 1200 counts then datumed and retried in seqexec. Still some noise but it looked better. This technique may not work as well at N or may need more or less counts to move filter. LR-Mirr not in position so had to redatum grating requiring that the spec. std be re-observed afterwards.