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Civil Date
Ephemerides
2015-08-25SunsetSunriseMoon
Set12°18°18°12°RiseRiseSet
01:3102:2202:5211:0511:3512:26-09:07
Night Length8:13Sunset Temperature


On-Duty Personnel
Resident AstronomerTelescope OperatorOPS EngineerDay Ops
Stephen OdewahnVicki Riley--


Overlapsnone

Other PersonnelMatthew Shetrone, Herman Kriel

GuestsRon Leck, Hanshin


Open/Close Log
Open timeOutdoor tempTruss tempClose timeReasonTime open
02:0823.321.411:37twilight09:29
Total Time Open9:29


      
ProgramNight PriorityEngineering
Stack Data
StartStopee50ee80Hefi FocusMars FocusOutside TempDome TempTruss TempWind DirectionWind SpeedStack Type
02:2202:550.440.691020-18422.723.122.813914First of Night
07:1407:390.490.751000141418.619.520.21729Stack/Re-stack
11:0011:350.530.79993219619.319.319.52099Stack/Re-stack


Problem Reports
PR NumberTimesTime LostDescriptionResponse
409003:05-03:05, 09:52 - 09:5200:00tracker_abort caught an exception: 'Timeout waiting for message ID 7 ACK. Receiver for tcsGiuTcsAsyncCommandSender is likely offline.' Had attempted to do a trajectory directly from what is sent, ie, letting the load trajectory deal with structure and dome. It moved structure and dome but never started even a slew to target. When finally Aborted got the above error box.Exitted/restarted TCS and as the structure was now set down to its 4 decimal place, put the last 2 of the decimal places in, loaded and went next and the tracker slewed and tracked on target. Did note on second instance the TCS server was not running when looking at the 'top' command on htcs; restarted it again.
406405:53-05:53, 09:36 - 09:3600:00TCS running very slowly. Have info from a 'top' on htcs when this happened couple times. File is slow-log.txt on jove desktop. Second instance listed while trying to load traj and then Go Next, each time getting TCS errors of 'Timeout wating for message ID 142 ACK. Receiver for tcsGuiTcsAsyncCommandSender is likely offline..'Exit/restart TCS.
409106:04-06:0400:00Got HFC fault while slewing to lower right; had already gone slow slew to center before the faster slew to lower right;tried to clear it on dSpace using TCS method twice, does not clear, now gonna try clearing in eng mode. NOW a skew shows up skew=0.031104. Was moving from center to lower right.Called: Herman

Somehow between Matt and myself we went through skew recovery and succeeded on second attempt.
409207:00-07:0000:00tcsGuiTcsAsyncCommanderSender.htcs "Expected DONE for message ID 4 but got 3" obtained upon attempting to slow slew from the gotten-out-of-skew to center. Oddly, it gave this message but then it went ahead and made the move.


Ops Commentsnone


TO CommentsVery clear, few thin high clouds Mostly worked on engineering tasks re the guide probes.


RA CommentsClear most of the night. Doing guide probe location observations.


Observations
FileTarget/QIDExp StartExposureOverheadProgramInstrument ConfigurationData TypeIQDimmSkySBrtSkytransSNRCommentsCharge