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Civil Date
Ephemerides
2026-05-20SunsetSunriseMoon
Set12°18°18°12°RiseRiseSet
01:5502:4603:2010:2410:5811:51-06:11
Night Length7:04Sunset Temperature


On-Duty Personnel
Resident AstronomerTelescope OperatorOPS EngineerDay Ops
Zach VanderboschAiden Dillard
Justen Pautzke
--


Overlapsnone

Other Personnelnone

Guestsnone


Open/Close Log
Open timeOutdoor tempTruss tempClose timeReasonTime open
07:1813.713.707:53dew point00:35
08:0912.913.710:59twilight02:50
Total Time Open3:25


      
ProgramNight PriorityScience
03:20Idle due to weather (Radar, clouds)
08:11Science
08:36Idle due to weather (Clouds)
09:53Science
Stack Data
StartStopee50ee80Hefi FocusMars FocusOutside TempDome TempTruss TempWind DirectionWind SpeedStack Type
07:1807:510.520.82-375+331813.013.613.721313First of Night
10:5110:560.550.83-555+346814.213.213.325810Post-Observing


Problem Reports
PR NumberTimesTime LostDescriptionResponse
667901:50-01:5000:00External Dewpoint Temp and AHU North Coil Temp sensors displaying incorrect valuesMonitored internal conditions closely and calculated expected value of external dewpoint using Rh and external temp


Ops Commentsnone


TO CommentsClosed most of the night due to humidity, radar and DP. Ext DP sensor reading normally again at EON.


RA Commentsnone


Observations
FileTarget/QIDExp StartExposureOverheadProgramInstrument ConfigurationData TypeIQDimmSkySBrtSkytransSNRCommentsCharge
lrs20000018_10bias00:000 LRS2cal  Yes
virus0000017_10bias00:000 VIRUScal  Yes
lrs20000018_11bias00:000 LRS2cal  Yes
virus0000017_11bias00:010 VIRUScal  Yes
lrs20000019_01dark00:01360 LRS2cal  Yes
virus0000018_01dark00:02360 VIRUScal  Yes
lrs20000019_02dark00:08360 LRS2cal  Yes
virus0000018_02dark00:08360 VIRUScal  Yes
lrs20000019_03dark00:15360 LRS2cal  Yes
virus0000018_03dark00:15360 VIRUScal  Yes
0001LFC Cal02:23106.5 HPFcal  Yes
0002LFC Cal02:25106.5 HPFcal  Yes
0003LFC Cal02:27106.5 HPFcal  Yes
0004LFC Cal03:43106.5 HPFcal  Yes
0005LFC Cal03:45106.5 HPFcal  Yes
0006LFC Cal03:48106.5 HPFcal  Yes
lrs20000001_01dark04:091800 ENG26-2-002LRS2cal  Yes
lrs20000001_02dark04:401800 ENG26-2-002LRS2cal  Yes
lrs20000001_03dark05:101800 ENG26-2-002LRS2cal  Yes
0007LFC Cal05:45106.5 HPFcal  Yes
0008LFC Cal05:47106.5 HPFcal  Yes
0009LFC Cal05:49106.5 HPFcal  Yes
0010LFC Cal07:54106.5 HPFcal  Yes
0011LFC Cal07:57106.5 HPFcal  Yes
0012LFC Cal07:59106.5 HPFcal  Yes
0013HR7628_tell_std08:18117.27.0HPFtelluric1.6819.940.36  Yes
0014LFC Cal08:24106.5 HPFcal  Yes
lrs20000002_01QID 37308:241804.0UT26-2-017LRS2-Bsci1.7321.630.80  Yes
0015LFC Cal08:30106.5 HPFcal  Yes
virus0000001_01parallel08:30360 VIRUSsci  Yes
lrs20000003_01QID 37408:303603.0UT26-2-017LRS2-Rsci1.5620.410.52  Yes
0016LFC Cal08:33106.5 HPFcal  Yes
lrs20000004_01QID 92008:41155.8PSU26-2-004LRS2-Bsci1.7821.520.16 Clouds, low transparency.No
lrs20000004_02QID 92008:43150.8PSU26-2-004LRS2-Bsci1.7221.510.11  No
lrs20000004_03QID 92008:44150.8PSU26-2-004LRS2-Bsci1.6121.520.10  No
lrs20000004_04QID 92008:45151.8PSU26-2-004LRS2-Bsci1.6321.520.08  No
lrs20000004_05QID 92008:47150.8PSU26-2-004LRS2-Bsci1.7321.520.08  No
lrs20000004_06QID 92008:48150.8PSU26-2-004LRS2-Bsci1.5421.520.08  No
lrs20000004_07QID 92008:49150.8PSU26-2-004LRS2-Bsci1.6221.510.08  No
lrs20000004_08QID 92008:50151.8PSU26-2-004LRS2-Bsci1.6621.500.17  No
lrs20000004_09QID 92008:52150.8PSU26-2-004LRS2-Bsci1.5621.500.16  No
lrs20000004_10QID 92008:53150.8PSU26-2-004LRS2-Bsci1.6121.510.18  No
0017LFC Cal09:01106.5 HPFcal  Yes
lrs20000005_01parallel09:011000 LRS2sci  Yes
virus0000002_01QID 19909:0110006.3PSU26-2-003VIRUSsci1.5421.670.18 Clouds, low transparency during first two exposures.No
0018LFC Cal09:03106.5 HPFcal  Yes
0019LFC Cal09:05106.5 HPFcal  Yes
lrs20000005_02parallel09:181000 LRS2sci  Yes
virus0000002_02QID 19909:1810001.3PSU26-2-003VIRUSsci1.7021.850.54  No
lrs20000005_03parallel09:361000 LRS2sci  Yes
virus0000002_03QID 19909:3610001.3PSU26-2-003VIRUSsci1.6021.880.64  No
virus0000003_01parallel09:583073 VIRUSsci  Yes
0020QID 87109:59969.15.8UT26-2-009HPFsci1.4420.190.9557 Yes
0021QID 87110:16969.10.8UT26-2-009HPFsci1.4920.130.9258 Yes
0022QID 87110:33969.10.8UT26-2-009HPFsci1.5720.050.8548 Yes
lrs20000006_01bias10:520 LRS2cal  Yes
virus0000004_01bias10:530 VIRUScal  Yes
virus0000005_01Cd-A10:5715 ENG26-2-002VIRUScal  Yes
virus0000006_01Hg10:5815 ENG26-2-002VIRUScal  Yes
0023Dark11:07319.5 HPFcal  Yes
0024Quartz FCU11:1974.5 HPFcal  Yes
0025Quartz FCU11:2074.5 HPFcal  Yes
0026Quartz FCU11:2274.5 HPFcal  Yes
0027Quartz FCU11:2474.5 HPFcal  Yes
0028Quartz FCU11:2674.5 HPFcal  Yes
0029Quartz FCU11:2874.5 HPFcal  Yes
0030Quartz FCU11:2974.5 HPFcal  Yes
0031Alpha Bright Cal11:3285.2 HPFcal  Yes
0032Alpha Bright Cal11:3485.2 HPFcal  Yes
0033Alpha Bright Cal11:3685.2 HPFcal  Yes
0034Alpha Bright Cal11:3885.2 HPFcal  Yes
0035LFC FCU11:40106.5 HPFcal  Yes
0036LFC FCU11:42106.5 HPFcal  Yes
0037LFC FCU11:45106.5 HPFcal  Yes
0038LFC FCU11:47106.5 HPFcal  Yes
0039LFC FCU11:49106.5 HPFcal  Yes
0040LFC FCU11:52106.5 HPFcal  Yes
0041LFC Cal11:55106.5 HPFcal  Yes
0042LFC Cal11:57106.5 HPFcal  Yes
0043Etalon Cal12:05159.8 HPFcal  Yes
0044Etalon Cal12:08159.8 HPFcal  Yes
0045Etalon Cal12:11159.8 HPFcal  Yes
0046Etalon Cal12:14159.8 HPFcal  Yes
0047UNe Slave Cal12:18426 HPFcal  Yes
0048UNe Slave Cal12:26426 HPFcal  Yes
0049UNe Slave Cal12:33426 HPFcal  Yes
0050UNe Slave Cal12:41426 HPFcal  Yes
0051UNe Slave Cal12:49426 HPFcal  Yes
0052UNe Slave Cal12:57426 HPFcal  Yes
lrs20009900_01bias22:030 LRS2cal  Yes
0057LFC Cal22:04106.5 HPFcal  Yes
virus0009900_01flat_Qth22:0420 VIRUScal  Yes
virus0009901_01bias22:050 VIRUScal  Yes
lrs20009901_01flat_ldls_long_B22:0620 LRS2cal  Yes
virus0009902_01dark22:0715 VIRUScal  Yes
lrs20009902_01Cd-A_B22:0829 LRS2cal  Yes
lrs20009903_01FeAr_R22:0915 LRS2cal  Yes
lrs20009904_01Hg_B22:1115 LRS2cal  Yes
0058Dark22:25319.5 HPFcal  Yes
0059Quartz FCU22:3274.5 HPFcal  Yes
0060Quartz FCU22:3474.5 HPFcal  Yes
0061Quartz FCU22:3574.5 HPFcal  Yes
0062Quartz FCU22:3774.5 HPFcal  Yes
0063Quartz FCU22:3974.5 HPFcal  Yes
0064Quartz FCU22:4174.5 HPFcal  Yes
0065Quartz FCU22:4374.5 HPFcal  Yes
0066Alpha Bright Cal22:4585.2 HPFcal  Yes
0067Alpha Bright Cal22:4785.2 HPFcal  Yes
0068Alpha Bright Cal22:4985.2 HPFcal  Yes
0069Alpha Bright Cal22:5185.2 HPFcal  Yes
0070LFC FCU22:53106.5 HPFcal  Yes
0071LFC FCU22:56106.5 HPFcal  Yes
0072LFC Cal22:59106.5 HPFcal  Yes
0073LFC Cal23:01106.5 HPFcal  Yes
0074Etalon Cal23:03159.8 HPFcal  Yes
0075UNe Slave Cal23:07426 HPFcal  Yes
lrs20000012_01flat_Qth_R23:0815 LRS2cal  Yes
lrs20000012_02flat_Qth_R23:0915 LRS2cal  Yes
lrs20000012_03flat_Qth_R23:1115 LRS2cal  Yes
lrs20000012_04flat_Qth_R23:1215 LRS2cal  Yes
lrs20000012_05flat_Qth_R23:1315 LRS2cal  Yes
lrs20000013_01flat_ldls_long_B23:1420 LRS2cal  Yes
0076UNe Slave Cal23:15426 HPFcal  Yes
lrs20000013_02flat_ldls_long_B23:1620 LRS2cal  Yes
lrs20000013_03flat_ldls_long_B23:1720 LRS2cal  Yes
lrs20000014_01Cd-A_B23:1829 LRS2cal  Yes
lrs20000014_02Cd-A_B23:2029 LRS2cal  Yes
lrs20000014_03Cd-A_B23:2129 LRS2cal  Yes
0077UNe Slave Cal23:23426 HPFcal  Yes
lrs20000015_01FeAr_R23:2315 LRS2cal  Yes
lrs20000015_02FeAr_R23:2415 LRS2cal  Yes
lrs20000015_03FeAr_R23:2515 LRS2cal  Yes
lrs20000016_01Hg_R23:2620 LRS2cal  Yes
lrs20000016_02Hg_R23:2820 LRS2cal  Yes
lrs20000016_03Hg_R23:2920 LRS2cal  Yes
0078UNe Slave Cal23:30426 HPFcal  Yes
lrs20000017_01Hg_B23:3015 LRS2cal  Yes
lrs20000017_02Hg_B23:3215 LRS2cal  Yes
lrs20000017_03Hg_B23:3315 LRS2cal  Yes
0079UNe Slave Cal23:38426 HPFcal  Yes
virus0000014_01flat_ldls_long23:3915 VIRUScal  Yes
virus0000014_02flat_ldls_long23:4115 VIRUScal  Yes
virus0000014_03flat_ldls_long23:4215 VIRUScal  Yes
virus0000015_01Cd-A23:4415 VIRUScal  Yes
virus0000015_02Cd-A23:4515 VIRUScal  Yes
0080UNe Slave Cal23:46426 HPFcal  Yes
virus0000015_03Cd-A23:4615 VIRUScal  Yes
virus0000016_01Hg23:4815 VIRUScal  Yes
virus0000016_02Hg23:4915 VIRUScal  Yes
virus0000016_03Hg23:5115 VIRUScal  Yes
lrs20000018_01bias23:520 LRS2cal  Yes
virus0000017_01bias23:520 VIRUScal  Yes
lrs20000018_02bias23:530 LRS2cal  Yes
virus0000017_02bias23:530 VIRUScal  Yes
lrs20000018_03bias23:530 LRS2cal  Yes
virus0000017_03bias23:540 VIRUScal  Yes
lrs20000018_04bias23:540 LRS2cal  Yes
virus0000017_04bias23:550 VIRUScal  Yes
lrs20000018_05bias23:550 LRS2cal  Yes
virus0000017_05bias23:550 VIRUScal  Yes
lrs20000018_06bias23:560 LRS2cal  Yes
virus0000017_06bias23:560 VIRUScal  Yes
lrs20000018_07bias23:570 LRS2cal  Yes
virus0000017_07bias23:570 VIRUScal  Yes
lrs20000018_08bias23:580 LRS2cal  Yes
virus0000017_08bias23:580 VIRUScal  Yes
lrs20000018_09bias23:590 LRS2cal  Yes
virus0000017_09bias23:590 VIRUScal  Yes