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Civil Date
Ephemerides
2018-04-01SunsetSunriseMoon
Set12°18°18°12°RiseRiseSet
01:1902:0802:3711:2211:5112:4002:36-
Night Length8:45Sunset Temperature


On-Duty Personnel
Resident AstronomerTelescope OperatorOPS EngineerDay Ops
Stephen OdewahnEusebio Terrazas--


Overlapsnone

Other Personnelnone

Guestsnone


Open/Close Log
Open timeOutdoor tempTruss tempClose timeReasonTime open
01:1620.120.001:26radar00:10
06:2817.918.110:28clouds04:00
Total Time Open4:10


      
ProgramNight PriorityEngineering
02:37Idle due to weather (clouds)
07:20Engineering (pointing tests)
10:29Idle due to weather (clouds (threatening))
Stack Data
StartStopee50ee80Hefi FocusMars FocusOutside TempDome TempTruss TempWind DirectionWind SpeedStack Type
07:0007:180.400.63910171417.417.718.11497First of Night


Problem Reports
PR NumberTimesTime LostDescriptionResponse
514706:35-06:5900:24Mirror focus was screwed up; AOA view and HEFI view looked extremely odd.had to change MARS focus state by 6000 steps and also load a previous SCS curve file from the 31st in order to get the mirror into a recognizable/stack-able state.


Ops Commentsnone


TO CommentsClouds and radar for part of the night; got more pointing data rest of night.


RA CommentsVery cloudy at sunset. Night devoted to engineering, specifically telescope pointing tests. Unable to take L/V skyflats due to threatening weather in the area.


Observations
FileTarget/QIDExp StartExposureOverheadProgramInstrument ConfigurationData TypeIQDimmSkySBrtSkytransSNRCommentsCharge
virus0000001_01bias10:540 VIRUScalS  Yes
virus0009990_01bias21:050 VIRUScalS  Yes
lrs20009990_01bias21:050 LRS2calS  Yes
lrs20009991_01FeAr_R21:0938.4 LRS2calS  Yes
lrs20009992_01flat_Qth_R21:1122.3 LRS2calS  Yes
lrs20009993_01dark21:12300 LRS2calS  Yes
virus0009991_01Hg21:2223.5 VIRUScalS  Yes
virus0009992_01Cd-A21:2327.5 VIRUScalS  Yes
virus0009993_01flat_ldls_long21:2422.5 VIRUScalS  Yes