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Civil Date
Ephemerides
2015-02-17SunsetSunriseMoon
Set12°18°18°12°RiseRiseSet
00:4901:3802:0612:1312:4113:3113:0223:42
Night Length10:07Sunset Temperature


On-Duty Personnel
Resident AstronomerTelescope OperatorOPS EngineerDay Ops
-Amy Westfall--


Overlapsnone

Other PersonnelStephen Odewahn, Herman Kriel

GuestsJim Fowler


Open/Close Log
Open timeOutdoor tempTruss tempClose timeReasonTime open
01:292.69.106:45engineering05:16
Total Time Open5:16


      
ProgramNight Priority
Stack Data
StartStopee50ee80Hefi FocusMars FocusOutside TempDome TempTruss TempWind DirectionWind SpeedStack Type
03:2706:40First of Night
↪ CommentsDid not take a measurement. See problem report.


Problem Reports
PR NumberTimesTime LostDescriptionResponse
396805:00-05:0000:00HEFI light source CC error could not be reset, possibly in need of a hardware fix. Unable to measure stack.
396905:00-05:0000:00Because Jim doesn't hear the dome as often, and because it sounded strange to him, I wanted to report it in case he's picking up on sounds that I've become attuned to because I hear the dome more often.
397005:00-05:0000:00When Jim was watching the structure air pressure during moves, he noted that it was lower than it has been in the past during moves. Additionally the air bearings sounded fairly squeaky during moves. Wondering if the two are related. Update: on final move of night, noticed that the structure cut off mid-lift briefly, due to an air pressure fault, before the structure air pressure could catch up. That has not happened in a long time.


Ops Commentsnone


TO CommentsFound all mirrors except 34 and 48. Without the use of HEFI light it was difficult finding stray mirrors. Ran dmittc script with good stack (save for above missing mirrors) at 90 and 120 azimuths.


RA Commentsnone


Observations
FileTarget/QIDExp StartExposureOverheadProgramInstrument ConfigurationData TypeIQDimmSkySBrtSkytransSNRCommentsCharge