### OBSDATE ### 20110823 ### LOGDATE ### 110823 ### OBSERVERS ### YK ### WEATHER ### RH 59-69%, clear ### LOCATION ### ROCS ### PROGRAM ### Testing ### SIDEROSTATS ### n3 s1 ### TARGETS ### alf Pav (HR 7790) del Sco (HR 5953) ### QUALITY ### Average ### PROBLEMS ### Fringes found at -1020um. Then a while later fringe position moved to -920um and still later to -900um. It sort of settled around -850 to -890um. S1 went dead out of a sudden. Spent quite a long while to reacquire the South beam. Other that this, operation was smooth. Taskmaster did most of the work. Fringes came and go quite immediately for del Sco. Fringes for alf Pav was quite persistent. The fringe tracker to stay lock onto the fringes of alf Pav for 3-5 secs before losing them again. Changing the gain (between 170 and 190) had little effect on the persistence of alf Pav fringes.