Subject: 2.5m obslog 20211020 (SJD 59508) From: viktorm@apo.nmsu.edu Date: Thu, 21 Oct 2021 11:01:51 +0000 (UTC) APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Wednesday October 20, 2021 (SJD 59508) ---- Observing Team ---- Viktor Malanushenko Kaike Pan (R) ---- Observing Plan ---- Pointing Model ---- Observing Summary ---- Mostly clear sky with light cloudy before midnight. Seeimg was between 0.8" to 3.5". We collect data to Pointing Model, calculate new, loaded it and checked. Details in the Log section. Notes ===== -- Dust accumulation: ~6500 in STUI, MCP-gui did not show status 'APOGEE Gang' connector (yesterday was working properly) ---- Observing Log ---- Afternoon: ========== 23:40Z test actors ok, only fliswarm ping - **FAILED** and hartmann ping - **FAILED** 23:48Z take apogee short dark - ok, apogee FPI - ok, start 'sop script run eveningcals_nodither' 23:49Z - on the telescope engcam power was 'on' 00:02Z - take engcam dark and flats - ok 00:11Z - start ventilation Night: ====== 00:40:47 encl25m : open; 01:59Z - start collect Pointing Data with the parameters: Min,Max Mag: 9.0, 10.8 Num Exp =2 exp Time 3.5 - 5.0 sec Settling Time =3 sec 04:56Z - stop it due to mistake. We take wrong command to skip missing star. So we put uncompleted file data with only 113 stars in to tcc/tccdata/ptdata_2021-10-21T01:59:24.6.dat 05:02Z Restart the new Data Collection. -- missing star, skip it: #114 -- missing exposure, no star : ecam_star 526, num in collection #138. Repeat it. 09:06Z Finished Collection. Guider expositions from #252 to #560. File ptdata_2021-10-21T05:01:54.4.dat During the data collection, we noticed that altitudes are off by as much as 2 arc-minutes, and the offset is closely related to the altitude. At altitude = 20 degrees, the offset is ~ +2 arc-minutes, at altitude = 85 degrees, the offset is about - 30". This may related to added weights on the telescope structure. Because of this large offsets, several stars have been mis-identified during the data collection. Therefore, we had to pause the data collection, clear offset, then resume. We also need to remove 4 outliers in the data reduction. We reduced the data on sdss4-tcc since sdss5-tcc doesn't have tpoint software. Then I copied over the new pointing model to sdss5-tcc, and loaded to tcc. Here is the new model from fauto fitting. coeff change value sigma 1 IA +0.000 +109.70 4.253 2 IE +0.000 -97.28 0.406 3 & HASA +0.000 -2.27 0.666 4 & HASA2 -0.000 -1.16 0.444 5 & HECACE +0.000 -1.91 0.854 6 & HECA2 +0.000 +1.09 0.325 7 NPAE +0.00 8 CA -0.000 -14.91 2.821 9 & HSCE2 -0.000 +5.23 1.864 10 AN -0.000 -5.20 0.564 11 AW +0.000 +10.70 0.262 12 & PZZ1 +126.03 13 TX -0.000 +44.38 0.279 Sky RMS = 2.74 Popn SD = 2.84 Observation #38 is a weak outlier candidate. After loaded the new pointing model, we tested the pointing at four azimuth cardinals at different altitudes (every 10 - 15 degrees from 25 to 85). To testing will take any stars: -N- -- X - -- Y - -fwhm ecam_star=562,261.16,256.98,2.747,29.30,33263.2 ecam_star=563,253.78,258.37,2.420,25.04,42551.4 ecam_star=564,255.43,258.95,2.700,25.59,56283.7 ecam_star=565,257.17,261.12,2.531,23.49,25588.0 ecam_star=566,256.44,258.97,2.904,25.53,12445.7 ecam_star=567,256.89,261.59,3.289,28.29,19433.9 ecam_star=568,258.12,263.12,4.875,37.09,10488.0 ecam_star=569,256.50,263.75,4.465,73.14,1454.0 ecam_star=570,256.31,259.97,3.964,24.73,20707.8 ecam_star=571,256.45,259.42,3.819,21.31,10871.5 ecam_star=572,254.62,254.39,2.814,22.06,45464.2 ecam_star=573,255.19,256.81,2.321,21.27,24295.5 ecam_star=574,251.03,255.30,2.463,24.01,28433.3 ecam_star=575,253.04,259.80,2.815,24.60,21549.1 ecam_star=576,254.44,260.24,2.976,27.62,16353.8 ecam_star=577,254.38,259.43,2.815,28.07,17797.3 ecam_star=578,257.60,259.12,3.069,42.68,51017.0 ecam_star=579,256.16,259.11,3.949,34.69,15959.9 ecam_star=580,257.34,258.36,2.301,21.11,23435.0 ecam_star=581,257.28,258.70,2.759,22.20,16405.9 ecam_star=582,250.45,260.69,2.758,22.80,14171.8 ecam_star=583,250.18,263.57,2.530,22.83,19388.5 ecam_star=584,253.73,263.02,3.166,24.21,18500.1 ecam_star=585,260.05,264.92,4.105,26.46,8596.4 The pointing is very good, within 4 arc-seconds at all pointings tested. ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: 0.0140 0.0120 Axial B: 0.0380 0.0360 Axial C: -0.1220 -0.1170 Trans D: -0.0366 -0.0366 Lateral E: 0.3370 0.3515 Lateral F: 0.5385 0.5415 GALILS Commanded: 12500 -1600 5300 47050 -8800 -8400 Actual: 12500 -1600 5300 47050 -8800 -8400 SETMIR VALUES PrimDesOrient: 0.0 -59.5 -9.15 -512.0 1906.3 PrimOrient: 1.07 -59.51 -9.21 -512.13 1906.31 SECONDARY: ---------- Focus: 0.0000 Air temp: 12.50 Altitude: 30.000038956303893 MIGS TONIGHT NOMINAL Axial A: -9.4510 -9.4540 Axial B: -9.4610 -9.4680 Axial C: -9.4970 -9.4970 Trans D: 0.1020 0.0980 GALILS Commanded: 4628100 4621900 4645650 -50 -3450 Actual: 4606972 4606689 4607237 -50 -3450 SETMIR VALUES SecDesOrient: 3657.0 0.0 0.0 0.0 42.22 SecOrient: 3656.77 -0.16 -0.06 -0.04 42.79 ---- Telescope Status ---- 00:51Z Started ventilation 00:40:47 encl25m : open; 10:44:47 encl25m : closed; No interlocks bypassed Status at:10:57Z Telescope stowed at: 121.0, 30.0, 0.0 mount Instrument mounted: cartridge = engcam Counterweights at: 444 446 444 443 LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 124 lbs, 22.3 psi ---- Software Used ---- Get Versions, 10/21/21, 00:49:39 -- STUI software: STUI : 1.7.13 alerts : 2.1.6 apo : 3.0.0 boss : 6.0.1-alpha.0 -boss.specMec : 3.0.4 guider : 4.0.0 ecamera : 2.3.0 -- done -- -- Other versions ---- idlspec2d : plate-mapper3 : petunia : autoscheduler : sdss_python_module: /bin/sh: /home/manga/products/Linux64/mangadrp/trunk/bin/mangadrp_version: No such file or directory mangadrp : -- done -- 23:14:47 OBSERVER.telescope: Get Versions, 10/20/21, 23:14:03 -- STUI software: STUI : 1.7.13 alerts : 2.1.6 apo : 3.0.0 boss : 6.0.1-alpha.0 -boss.specMec : 3.0.4 gcamera : FAILED guider : 4.0.0 hartmann : FAILED hub : 5.0.0a0 mcp : 2.1 -mcp.plc : 34 -mcp.azFiduci : v1_147 -mcp.altFiduc : v1_147 -mcp.rotFiduc : v1_147 platedb : FAILED sop : 0.1.0-alpha.0 tcc : 1.4.0 apogee : not availble apogeecal : not availble apogeeql : v1_7_0dev STUIAdditions : dgatlin