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Civil Date
Ephemerides
2022-04-04SunsetSunriseMoon
Set12°18°18°12°RiseRiseSet
01:2402:1002:3911:1811:4712:33-04:57
Night Length8:39Sunset Temperature


On-Duty Personnel
Resident AstronomerTelescope OperatorOPS EngineerDay Ops
Sergey RostopchinAmy Westfall--


Overlapsnone

Other Personnelnone

Guestsnone


Open/Close Log
Open timeOutdoor tempTruss tempClose timeReasonTime open
01:2017.214.611:46twilight10:26
Total Time Open10:26


      
ProgramNight PriorityScience
02:39Science
04:16Engineering (hpf)
04:58Science
11:01Idle due to weather (variable seeing)
Stack Data
StartStopee50ee80Hefi FocusMars FocusOutside TempDome TempTruss TempWind DirectionWind SpeedStack Type
01:5302:310.440.6470+268814.314.514.737First of Night
11:3811:450.470.77210+379812.813.113.128221Post-Observing


Problem Reports
PR NumberTimesTime LostDescriptionResponse
599401:48-01:4800:00Dome did not complete move to CCAS
601005:33-05:36, 11:26 - 11:3300:10Science time lost for setup at 05:33 due to jumping ACQ cam/Guider star images during setup. Tracker was gradually moving in X from 260 to 240 at the time we lost setup time. Same problem happened from 11:26 to 11:33: we could not set up on a target because of the jumping stars in Guiders and ACQ. Tracker X position was in the mid-negative-200's.
601106:30-06:3200:02Object at image border errors cause additional problems when guiding is compromised
601004:22-04:50, 05:53 - 06:06, 07:57 - 07:57, 08:23 - 08:23, 08:43 - 08:43, 08:48 - 08:48, 08:54 - 08:54, 09:13 - 09:13, 09:19 -09:19, 09:40 - 09:40, 09:45 - 09:45, 10:10 - 10:10, 10:25 - 10:25, 10:32 - 10:3200:41Around 04:22 to 04:50 I was on the phone with Jim as we assessed this problem and experimented with starting and stopping loops on Guiders, WFS, TT to see if that helped. 05:53 to 06:06 comprised the majority of an exposure with the guider images jumping, but as of now it seems like that data will not be rejected. The jumping during that exposure occurred while the tracker moved in X from TSF -100 to -400. The rest of this entry is the series of times and tracker X TSF values where the guiding experienced pronounced, problematic jumps: 07:57 UT at around X TSF 277, 08:23 at around -120, 08:43 at around -116, 08:48 at around -181, 08:54 at around -261, 09:13 at around -28, 09:19 at around -114, 09:40 at around -123, 09:45 at around -181, 10:10 at around -114, 10:25 at around -31, 10:32 at around -123.Called: Jim

Turn off Guider PID loop and use 10 second exposures. Doesn't fix the problem but it seems to help a little.


Ops Commentsnone


TO CommentsSomewhat rough seeing, otherwise clear and calm.


RA Commentsnone


Observations
FileTarget/QIDExp StartExposureOverheadProgramInstrument ConfigurationData TypeIQDimmSkySBrtSkytransSNRCommentsCharge
0001twilight01:22298.2 HPFcal  Yes
lrs20000001_01skyflat01:287 LRS2cal  Yes
lrs20000002_01skyflat01:2910 LRS2cal  Yes
lrs20000003_01skyflat01:3013 LRS2cal  Yes
lrs20000004_01skyflat01:3216 LRS2cal  Yes
lrs20000005_01skyflat01:3322 LRS2cal  Yes
lrs20000006_01skyflat01:3430 LRS2cal  Yes
virus0000001_01skyflat01:397 VIRUScal  Yes
virus0000002_01skyflat01:4010 VIRUScal  Yes
virus0000003_01skyflat01:4114 VIRUScal  Yes
virus0000004_01skyflat01:4218 VIRUScal  Yes
virus0000005_01skyflat01:4426 VIRUScal  Yes
0002LFC Cal02:34106.5 HPFcal  Yes
0003LFC Cal02:36106.5 HPFcal  Yes
0004LFC Cal02:39106.5 HPFcal  Yes
virus0000006_01parallel02:39900 VIRUSsci  Yes
lrs20000008_01parallel02:45027.0PSU22-2-002LRS2-Rsci1.620.8820.840.83 Wrong version of iexp was used by incidentNo
virus0000007_01parallel02:55900 VIRUSsci  Yes
0005parallel03:02969.13.8HET22-2-300HPFsci1.721.1620.480.80223 Yes
virus0000008_01parallel03:022872.5 VIRUSsci  Yes
0006parallel03:19969.10.8HET22-2-300HPFsci1.950.8820.580.80183 Yes
0007LFC Cal03:37106.5 HPFcal  Yes
0008parallel03:43969.17.8PSU22-2-010HPFsci1.630.6920.310.9354 Yes
virus0000009_01parallel03:432872.5 VIRUSsci  Yes
0009parallel04:00969.10.8PSU22-2-010HPFsci1.570.9320.330.9460 Yes
0010Ross_12804:22394.16.4ENG22-2-000HPFeng1.690.9320.400.91382 Yes
virus0000010_01parallel04:222962.5 VIRUSeng  Yes
0011Ross_12804:30394.10.4ENG22-2-000HPFeng1.770.8620.420.90376 Yes
0012Ross_12804:37394.10.4ENG22-2-000HPFeng1.731.0820.460.92407 Yes
0013Ross_12804:44394.10.4ENG22-2-000HPFeng1.540.8820.500.91427 Yes
0014Ross_12804:51394.11.4ENG22-2-000HPFeng1.530.9620.610.85392 Yes
0015LFC Cal04:59106.5 HPFcal  Yes
virus0000011_01parallel05:053607.0HET22-2-100VIRUSsci1.650.9921.820.94  Yes
virus0000011_02parallel05:123601.0HET22-2-100VIRUSsci1.681.2621.880.88  Yes
virus0000011_03parallel05:193601.0HET22-2-100VIRUSsci1.750.9621.880.87  Yes
0016LFC Cal05:31106.5 HPFcal  Yes
0017LFC Cal05:34106.5 HPFcal  Yes
0018LFC Cal05:36106.5 HPFcal  Yes
virus0000012_01parallel05:36900 VIRUSsci  Yes
lrs20000009_01parallel05:3690011.0UT22-2-016LRS2-Bsci1.680.9421.930.86 long setup during some hardware problemYes
virus0000012_02parallel05:52900 VIRUSsci  Yes
lrs20000009_02parallel05:529001.0UT22-2-016LRS2-Bsci1.881.2321.970.88  Yes
virus0000013_01parallel06:123605.0HET22-2-100VIRUSsci1.991.2421.980.87  Yes
virus0000013_02parallel06:193601.0HET22-2-100VIRUSsci1.841.3621.980.89  Yes
virus0000013_03parallel06:263601.0HET22-2-100VIRUSsci1.761.2921.950.90  Yes
virus0000014_01parallel06:363604.0HET22-2-100VIRUSsci1.841.2521.990.79  Yes
virus0000014_02parallel06:433601.0HET22-2-100VIRUSsci1.921.2521.980.81  Yes
virus0000014_03parallel06:503601.0HET22-2-100VIRUSsci1.991.2121.980.82  Yes
virus0000015_01parallel06:594203.0HET22-2-100VIRUSsci2.551.5421.960.81  Yes
virus0000015_02parallel07:074201.0HET22-2-100VIRUSsci2.221.4721.970.82  Yes
virus0000015_03parallel07:164202.0HET22-2-100VIRUSsci2.021.2922.000.84  Yes
virus0000016_01parallel07:274204.0HET22-2-100VIRUSsci2.121.3122.010.79  Yes
virus0000016_02parallel07:354201.0HET22-2-100VIRUSsci2.361.4421.990.81  Yes
virus0000016_03parallel07:434201.0HET22-2-100VIRUSsci2.601.8122.070.84  Yes
virus0000017_01parallel07:556005.0HET22-2-100VIRUSsci1.941.6421.910.88  Yes
virus0000017_02parallel08:066001.0HET22-2-100VIRUSsci1.891.5921.900.87  Yes
virus0000017_03parallel08:176001.0HET22-2-100VIRUSsci1.991.4321.890.87  Yes
virus0000018_01parallel08:314204.0HET22-2-100VIRUSsci1.981.2121.970.85  Yes
virus0000018_02parallel08:394201.0HET22-2-100VIRUSsci1.941.3521.970.85  Yes
virus0000018_03parallel08:474201.0HET22-2-100VIRUSsci2.001.1222.220.91  Yes
virus0000019_01parallel08:584204.0HET22-2-100VIRUSsci1.741.3322.030.91  Yes
virus0000019_02parallel09:064201.0HET22-2-100VIRUSsci1.831.1122.010.89  Yes
virus0000019_03parallel09:144201.0HET22-2-100VIRUSsci1.801.2321.970.90  Yes
virus0000020_01parallel09:253604.0HET22-2-100VIRUSsci1.851.0322.000.92  Yes
virus0000020_02parallel09:323601.0HET22-2-100VIRUSsci2.011.0821.980.92  Yes
virus0000020_03parallel09:393601.0HET22-2-100VIRUSsci2.321.1222.240.98  Yes
virus0000021_01parallel09:484203.0HET22-2-100VIRUSsci2.111.2021.980.99  Yes
virus0000021_02parallel09:564201.0HET22-2-100VIRUSsci2.091.5021.970.98  Yes
virus0000021_03parallel10:044201.0HET22-2-100VIRUSsci1.891.1521.960.97  Yes
virus0000022_01parallel10:143603.0HET22-2-100VIRUSsci1.971.0621.950.92  Yes
virus0000022_02parallel10:213601.0HET22-2-100VIRUSsci1.981.1821.930.91  Yes
virus0000022_03parallel10:283601.0HET22-2-100VIRUSsci2.141.2521.920.91  Yes
virus0000023_01parallel10:384204.0HET22-2-100VIRUSsci1.821.3922.010.83  Yes
virus0000023_02parallel10:464201.0HET22-2-100VIRUSsci1.861.1621.980.82  Yes
virus0000023_03parallel10:544201.0HET22-2-100VIRUSsci1.971.3221.960.83  Yes
0019LFC Cal11:05106.5 HPFcal  Yes
0020LFC Cal11:07106.5 HPFcal  Yes
virus0000024_01parallel11:09960 VIRUSsci  Yes
lrs20000010_01parallel11:099608.0PSU22-2-012LRS2-Bsci2.391.2821.730.66 variable seeingNo
0021LFC Cal11:10106.5 HPFcal  Yes
lrs20000011_01BD+262606_056_W11:366011.0LRS2spec2.801.5721.010.92  Yes
virus0000025_01bias11:380 VIRUScal  Yes
virus0000026_01Cd-A11:4415 ENG22-2-002VIRUScal  Yes
virus0000027_01Hg11:5115 ENG22-2-002VIRUScal  Yes
0022Dark11:54319.5 HPFcal  Yes
0023Quartz FCU12:0574.5 HPFcal  Yes
0024Quartz FCU12:0774.5 HPFcal  Yes
0025Quartz FCU12:0974.5 HPFcal  Yes
0026Quartz FCU12:1174.5 HPFcal  Yes
0027Quartz FCU12:1374.5 HPFcal  Yes
0028Quartz FCU12:1474.5 HPFcal  Yes
0029Quartz FCU12:1674.5 HPFcal  Yes
0030Alpha Bright Cal12:1985.2 HPFcal  Yes
0031Alpha Bright Cal12:2185.2 HPFcal  Yes
0032Alpha Bright Cal12:2385.2 HPFcal  Yes
0033Alpha Bright Cal12:2585.2 HPFcal  Yes
0034LFC FCU12:27106.5 HPFcal  Yes
0035LFC FCU12:30106.5 HPFcal  Yes
0036LFC FCU12:32106.5 HPFcal  Yes
0037LFC FCU12:35106.5 HPFcal  Yes
0038LFC FCU12:37106.5 HPFcal  Yes
0039LFC FCU12:39106.5 HPFcal  Yes
0040LFC Cal12:42106.5 HPFcal  Yes
0041LFC Cal12:45106.5 HPFcal  Yes
0042Etalon Cal12:52159.8 HPFcal  Yes
0043Etalon Cal12:55159.8 HPFcal  Yes
0044Etalon Cal12:59159.8 HPFcal  Yes
0045Etalon Cal13:02159.8 HPFcal  Yes
0046UNe Slave Cal13:06852 HPFcal  Yes
0047UNe Slave Cal13:20852 HPFcal  Yes
0048UNe Slave Cal13:35852 HPFcal  Yes
lrs20008101_01flat_Qth_R19:5715 LRS2cal  Yes
0062LFC Cal21:47106.5 HPFcal  Yes
lrs20009900_01bias21:510 LRS2cal  Yes
virus0009900_01flat_Qth21:5220 VIRUScal  Yes
virus0009901_01bias21:530 VIRUScal  Yes
lrs20009901_01flat_ldls_long_B21:5415 LRS2cal  Yes
lrs20009902_01Cd-A_B21:5538 LRS2cal  Yes
lrs20009903_01FeAr_R21:5715 LRS2cal  Yes
lrs20009904_01Hg_B21:5815 LRS2cal  Yes
0063Dark22:02319.5 HPFcal  Yes
0064Quartz FCU22:0974.5 HPFcal  Yes
0065Quartz FCU22:1174.5 HPFcal  Yes
0066Quartz FCU22:1274.5 HPFcal  Yes
0067Quartz FCU22:1474.5 HPFcal  Yes
0068Quartz FCU22:1674.5 HPFcal  Yes
0069Quartz FCU22:1874.5 HPFcal  Yes
0070Quartz FCU22:2074.5 HPFcal  Yes
0071Alpha Bright Cal22:2285.2 HPFcal  Yes
0072Alpha Bright Cal22:2485.2 HPFcal  Yes
0073Alpha Bright Cal22:2685.2 HPFcal  Yes
0074Alpha Bright Cal22:2885.2 HPFcal  Yes
0075LFC FCU22:31106.5 HPFcal  Yes
0076LFC FCU22:33106.5 HPFcal  Yes
0077LFC Cal22:36106.5 HPFcal  Yes
0078LFC Cal22:39106.5 HPFcal  Yes
0079Etalon Cal22:41159.8 HPFcal  Yes
0080UNe Slave Cal22:45852 HPFcal  Yes
lrs20000019_01flat_Qth_R22:4515 LRS2cal  Yes
lrs20000019_02flat_Qth_R22:4615 LRS2cal  Yes
lrs20000019_03flat_Qth_R22:4815 LRS2cal  Yes
lrs20000019_04flat_Qth_R22:4915 LRS2cal  Yes
lrs20000019_05flat_Qth_R22:5015 LRS2cal  Yes
lrs20000020_01flat_ldls_long_B22:5115 LRS2cal  Yes
lrs20000020_02flat_ldls_long_B22:5315 LRS2cal  Yes
lrs20000020_03flat_ldls_long_B22:5415 LRS2cal  Yes
lrs20000021_01Cd-A_B22:5538 LRS2cal  Yes
lrs20000021_02Cd-A_B22:5738 LRS2cal  Yes
lrs20000021_03Cd-A_B22:5838 LRS2cal  Yes
0081UNe Slave Cal23:00852 HPFcal  Yes
lrs20000022_01FeAr_R23:0015 LRS2cal  Yes
lrs20000022_02FeAr_R23:0115 LRS2cal  Yes
lrs20000022_03FeAr_R23:0215 LRS2cal  Yes
lrs20000023_01Hg_R23:0420 LRS2cal  Yes
lrs20000023_02Hg_R23:0520 LRS2cal  Yes
lrs20000023_03Hg_R23:0620 LRS2cal  Yes
lrs20000024_01Hg_B23:0715 LRS2cal  Yes
lrs20000024_02Hg_B23:0915 LRS2cal  Yes
lrs20000024_03Hg_B23:1015 LRS2cal  Yes
0082UNe Slave Cal23:15852 HPFcal  Yes
virus0000031_01flat_ldls_long23:1615 VIRUScal  Yes
virus0000031_02flat_ldls_long23:1815 VIRUScal  Yes
virus0000031_03flat_ldls_long23:1915 VIRUScal  Yes
virus0000032_01Cd-A23:2115 VIRUScal  Yes
virus0000032_02Cd-A23:2215 VIRUScal  Yes
virus0000032_03Cd-A23:2315 VIRUScal  Yes
virus0000033_01Hg23:2515 VIRUScal  Yes
virus0000033_02Hg23:2615 VIRUScal  Yes
virus0000033_03Hg23:2715 VIRUScal  Yes
lrs20000025_01bias23:290 LRS2cal  Yes
virus0000034_01bias23:290 VIRUScal  Yes
lrs20000025_02bias23:300 LRS2cal  Yes
virus0000034_02bias23:300 VIRUScal  Yes
lrs20000025_03bias23:300 LRS2cal  Yes
virus0000034_03bias23:310 VIRUScal  Yes
lrs20000025_04bias23:310 LRS2cal  Yes
virus0000034_04bias23:320 VIRUScal  Yes
lrs20000025_05bias23:320 LRS2cal  Yes
virus0000034_05bias23:330 VIRUScal  Yes
lrs20000025_06bias23:330 LRS2cal  Yes
virus0000034_06bias23:340 VIRUScal  Yes
lrs20000025_07bias23:340 LRS2cal  Yes
virus0000034_07bias23:340 VIRUScal  Yes
lrs20000025_08bias23:350 LRS2cal  Yes
virus0000034_08bias23:350 VIRUScal  Yes
lrs20000025_09bias23:360 LRS2cal  Yes
virus0000034_09bias23:360 VIRUScal  Yes
lrs20000025_10bias23:370 LRS2cal  Yes
virus0000034_10bias23:370 VIRUScal  Yes
lrs20000025_11bias23:380 LRS2cal  Yes
virus0000034_11bias23:380 VIRUScal  Yes
lrs20000026_01dark23:39360 LRS2cal  Yes
virus0000035_01dark23:40360 VIRUScal  Yes
lrs20000026_02dark23:46360 LRS2cal  Yes
virus0000035_02dark23:46360 VIRUScal  Yes
lrs20000026_03dark23:53360 LRS2cal  Yes
virus0000035_03dark23:53360 VIRUScal  Yes