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Civil Date
Ephemerides
2018-04-28SunsetSunriseMoon
Set12°18°18°12°RiseRiseSet
01:3602:2803:0010:4711:1812:1000:2312:20
Night Length7:47Sunset Temperature


On-Duty Personnel
Resident AstronomerTelescope OperatorOPS EngineerDay Ops
Matthew ShetroneAmy Westfall--


Overlaps
TO OverlapRA Overlap
-Sergey Rostopchin

Other Personnelnone

GuestsHPF crew


Open/Close Log
Open timeOutdoor tempTruss tempClose timeReasonTime open
02:0818.018.006:26radar04:18
07:1214.615.511:44twilight04:32
Total Time Open8:50


      
ProgramNight PriorityEngineering
03:00Engineering (HPF)
06:26Idle due to weather (clouds and radar)
07:12Engineering (HPF)
Stack Data
StartStopee50ee80Hefi FocusMars FocusOutside TempDome TempTruss TempWind DirectionWind SpeedStack Type
02:1102:510.430.65930+108317.017.417.81413First of Night
07:1307:170.871.33960+183614.614.915.519417Post-Observing
07:1807:400.370.58905+304514.414.615.219218Stack/Re-stack


Problem Reportsno PRs


Ops Commentsnone


TO CommentsModerate-heavy cloud cover for much of night. Sporadic light radar blips.


RA CommentsHPF engineering nearly the entire night.


Observations
FileTarget/QIDExp StartExposureOverheadProgramInstrument ConfigurationData TypeIQDimmSkySBrtSkytransSNRCommentsCharge
lrs20009991_01FeAr_R00:0122 LRS2calS  Yes
lrs20009992_01flat_Qth_R00:0215 LRS2calS  Yes
lrs20009993_01dark00:03300 LRS2calS  Yes
virus0000001_01bias11:400 VIRUScalS  Yes
virus0009990_01bias23:480 VIRUScalS  Yes
lrs20009990_01bias23:480 LRS2calS  Yes
virus0009991_01Hg23:5415 VIRUScalS  Yes
virus0009992_01Cd-A23:5515 VIRUScalS  Yes
virus0009993_01flat_ldls_long23:5615 VIRUScalS  Yes