APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Sunday October 04, 2026 (SJD 61318) ---- Observing Team ---- Dmitry Bizyaev ---- Observing Plan ---- Sun 04 Oct 2026 61318 0.31 01:36 01:51 11:52 19:42 05:46 --- dark (10.0 h) plus 0.2 h for 12 deg design ---- Observing Summary ---- The night was lost to high humidity and cloudy sky, in combination. ---- Engineering Issues ---- The hand-held dew point sensor was foud turned on with uniform white bright screen and no messages on it. It was unable to turn off via the power button. I replaced its 9V battery, and it worked initially. Then it turned off on its own and I was unable to turn it on. Disconnecting/connecting the battery didn't help. ---- Observing Log ---- Afternoon ========= All systems are found working as expected. The BOSS collimation looks OK, not adjusted. 23:31:50 Hartmann collimate output sp1: offset: r= -5277 (Out of focus); b= 10.9 (Out of focus) sp1: pred. move: spAverageMove= -4373 sp1: pred. resid: r= -903, b= -2.8, txt= OK, spTemp = 6.7 cwPositions = 32 32 32 31; MCP instr = 10 (mounted); ---------- motorPosition sp1: -5875, -5871, -5875; ---------- Median spectrographs temperatures: Tsp1= 6.7 Outside air temperature= 0.0; ---------- Boss CCD Temp : sp1r0= -124.6 (-126.6); sp1b2= -99.6 (-100.0); sp1LN2: 10.0; ---------- Apogee: vacuum = 9.08e-07 ( < 1.1e-06 ) ln2Level = 93.174 ( > 85 ) ---------- Weather: Humidity = 72.5 % AirTemp = 10.0 C, DpTemp = 5.3 C diff= 4.7 C wind25m = 1.7 mph, direction = 102.6 deg ---------- semOwner = TCC:0:0 stuiVer=(1.7.19 2023-01-12), pid = 40516 memory = 442 MB ---------- Jaeger disabled robots: 647, 885, 986, 1339 There are 4 disabled robots 22:18:36 apogee exposure file= apRaw-57560001 3 B ArcLamp 22:19:17 boss exposure 0 sec file=0405011 bias ======================================================= =====>>>>> 22:19:50 Config Loaded: -999--999-27828 ======================================================= 22:20:44 apogee exposure file= apRaw-57560002 60 B Dark 22:21:01 boss exposure 20 sec file=0405012 dark 22:21:26 FVC exposure image /data/fcam/61318/proc-fimg-fvc1n-0001.fits 22:21:25 fvc_perc_90= 55.1 fvc_percent_reached= 1.8 fvc_rms= 38.99 22:31:36 apogee exposure file= apRaw-57560003 10 B QuartzFlat 22:33:28 apogee exposure file= apRaw-57560004 12 B ArcLamp 22:35:41 apogee exposure file= apRaw-57560005 40 B ArcLamp 22:42:58 apogee exposure file= apRaw-57560006 12 A ArcLamp 22:45:10 apogee exposure file= apRaw-57560007 40 A ArcLamp 22:52:36 apogee exposure file= apRaw-57560008 60 A Dark 23:03:28 apogee exposure file= apRaw-57560009 30 A ArcLamp 23:08:52 apogee exposure file= apRaw-57560010 30 B ArcLamp 23:29:40 boss exposure 4 sec file=0405013 arc 23:30:22 boss exposure 4 sec file=0405014 arc 23:31:39 Hartmann: offset r= -5277 (Out of focus) b = 10.9 (Out of focus) pred_move = -4373 pred_resid r= -903 b= -2.8 cmnt=OK 23:32:17 boss exposure 4 sec file=0405015 arc 23:33:56 boss exposure 25 sec file=0405016 flat 23:39Z ventilation started. The sky is partly cloudy. ===== Night ===== Instead of opening, I had to stop ventilation and close doors right before the sunset because humidity climbed up over 85%, which was confirmed by the independent gauge on the 2.5m enclosure and the hand-held dew point sensor. The whole night we had either cloudy sky, or high humidity. There was no chance to open. 11:42Z started morning calibrations. ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: -5.4280 -5.4260 Axial B: -5.0410 -5.0390 Axial C: -5.2830 -5.2780 Trans D: -0.8780 -0.8710 Lateral E: 0.3245 0.3245 Lateral F: 0.5335 0.5335 GALILS Commanded: 11450 -1050 5900 26550 -14400 -13850 Actual: 11450 -1050 5900 26550 -14400 -13850 SETMIR VALUES PrimDesOrient: -1.06 -43.05 -8.77 -751.82 -556.2 PrimOrient: -1.06 -43.05 -8.77 -751.82 -556.2 SECONDARY: ---------- Focus: 0.0000 Air temp: 0.00 Altitude: 30.0 MIGS TONIGHT NOMINAL Axial A: -7.9560 -7.9570 Axial B: -6.1120 -6.1140 Axial C: -6.0750 -6.0790 Trans D: 0.2050 0.2050 GALILS Commanded: 364600 387150 344450 -1500 1800 Actual: 321895 349901 299363 -1500 1800 SETMIR VALUES SecDesOrient: 257.0 14.2 5.9 -72.0 -12.76 SecOrient: 256.92 14.23 5.85 -71.82 -12.65 ---- Telescope Status ---- Not opened. No interlocks bypassed. The slip detector is running on a spare power supply. Status at: 11:47Z Telescope stowed at: 121.0, 30.0, 0.0 mount Instrument mounted: FPS Counterweights at: 31 ? LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 178 lbs, 22 psi FPS Status ========== CP10 Loop = 7.53 L/min GFA Loop = 2.41 L/min Supply pressure = 43.4 psi Return pressure = 28.1 psi Chiller Status ============== Set temperarature = 10.1 C Flow = 5.2 Gpm ---- Software Used ---- STUI : 1.7.19 alerts : 2.3.0 boss : 6.0.5a1 -boss.specMec : 3.0.4 apo : 4.1.0 fliswarm : 0.7.0 jaeger : 1.11.2a1 kaiju : 1.4.1 coordio : 1.18.1 fps_calibrati : 2025.12.04 cherno : 1.2.2 astrometrynet : 0.97 hal : 1.4.1 hartmann : 2.0.2 hub : 5.0.1a0 mcp : 2.3.1 -mcp.plc : 35 -mcp.azFiduci : v1_154 -mcp.altFiduc : v1_154 -mcp.rotFiduc : v1_154 tcc : 1.4.0 apogee : not availble apogeecal : not availble apogeeql : 2.0.0a0 Boson : 0.7.0 --------------Other Versions-------------- sdss-obstools : 3.9.3 TPM : 1.2-31-gd7eb MCP : 2.3.1 PLC : V35 Fiducials : v1_154 idlspec2d : 6.3.0dev Kronos : 2.1.0a roboscheduler : 2.1.0 /dev/sdb1 1.0T 424G 600G 42% /home /dev/sdd1 22T 18T 3.2T 85% /data ---- APOGEE Data Summary ---- Last morning's calibrations look OK: 61317 31 12:35 57550031 Dark 60 B 13.5 ---------- a-b-c - - 61317 32 12:46 57550032 Dark 60 B 13.5 ---------- a-b-c - - 61317 33 12:57 57550033 Dark 60 B 13.5 ---------- a-b-c - - 61317 34 12:59 57550034 QuarFlat 10 B 13.5 ---------- a-b-c - 102 61317 35 13:00 57550035 QuarFlat 10 B 13.5 ---------- a-b-c - 102 61317 36 13:02 57550036 QuarFlat 10 B 13.5 ---------- a-b-c - 102 61317 37 13:04 57550037 Arc-Thar 12 B 13.5 ---------- a-b-c 3.93 105 61317 38 13:12 57550038 Arc-Une 40 B 13.5 ---------- a-b-c 3.92 95 61317 39 13:14 57550039 Arc-Thar 12 A 13.0 ---------- a-b-c 3.39 102 61317 40 13:21 57550040 Arc-Une 40 A 13.0 ---------- a-b-c 3.39 95 61317 41 13:27 57550041 Dark 30 A 13.0 ---------- a-b-c - - 61317 42 13:32 57550042 InteFlat 30 A 13.0 ---------- a-b-c - - 61317 43 13:37 57550043 InteFlat 30 A 13.0 ---------- a-b-c - - 61317 44 13:43 57550044 InteFlat 30 A 13.0 ---------- a-b-c - - 61317 45 13:48 57550045 Dark 30 A 13.0 ---------- a-b-c - - 61317 46 13:54 57550046 Arc---- 30 A 13.0 ---------- a-b-c - 96 FPI A 61317 47 13:59 57550047 Arc---- 30 B 13.5 ---------- a-b-c - 93 FPI B APOGEE data list, mjd=61318, all raw_data: /data/apogee/utr_cdr/61318/apRaw-*.fits archive: /data/apogee/archive/61318/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61318/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61318 1 22:18 57560001 Arc---- 3 B 13.5 ---------- a-b-c - 0 test 61318 2 22:31 57560002 Dark 60 B 13.5 ---------- a-b-c - - 61318 3 22:33 57560003 QuarFlat 10 B 13.5 ---------- a-b-c - 103 61318 4 22:35 57560004 Arc-Thar 12 B 13.5 ---------- a-b-c 3.94 102 61318 5 22:42 57560005 Arc-Une 40 B 13.5 ---------- a-b-c 3.93 97 61318 6 22:44 57560006 Arc-Thar 12 A 13.0 ---------- a-b-c 3.38 99 61318 7 22:51 57560007 Arc-Une 40 A 13.0 ---------- a-b-c 3.38 97 61318 8 23:03 57560008 Dark 60 A 13.0 ---------- a-b-c - - 61318 9 23:08 57560009 Arc---- 30 A 13.0 ---------- a-b-c - 95 FPI A 61318 10 23:13 57560010 Arc---- 30 B 13.5 ---------- a-b-c - 94 FPI B ... ------------------------------------------------------------------------------ ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61318 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 22:19 b1-00405011 ----------- ---- bia Clo 0.0 -1502 -1503 -1505 2 22:19 r1-00405011 ----------- ---- bia Clo 0.0 -1502 -1503 -1505 3 22:21 r1-00405012 ----------- ---- dar Clo 20.0 -1502 -1503 -1505 4 22:21 b1-00405012 ----------- ---- dar Clo 20.0 -1502 -1503 -1505 5 23:30 r1-00405013 -999--999 27828 arc Lef 4.1 -1502 -1503 -1505 HART 6 23:30 b1-00405013 -999--999 27828 arc Lef 4.1 -1502 -1503 -1505 HART 7 23:30 b1-00405014 -999--999 27828 arc Rig 4.1 -1502 -1503 -1505 HART 8 23:30 r1-00405014 -999--999 27828 arc Rig 4.1 -1502 -1503 -1505 HART 9 23:32 r1-00405015 -999--999 27828 arc Out 4.1 -5875 -5871 -5875 10 23:32 b1-00405015 -999--999 27828 arc Out 4.1 -5875 -5871 -5875 11 23:33 r1-00405016 -999--999 27828 fla Out 25.1 -5875 -5871 -5875 12 23:33 b1-00405016 -999--999 27828 fla Out 25.1 -5875 -5871 -5875 13 02:34 r1-00405017 ----------- ---- dar Clo 900.0 -5875 -5871 -5875 14 02:34 b1-00405017 ----------- ---- dar Clo 900.0 -5875 -5871 -5875 15 05:46 r1-00405018 ----------- ---- dar Clo 900.0 -5875 -5871 -5875 16 05:46 b1-00405018 ----------- ---- dar Clo 900.0 -5875 -5871 -5875 17 07:13 r1-00405019 ----------- ---- dar Clo 900.0 -5875 -5871 -5875 18 07:13 b1-00405019 ----------- ---- dar Clo 900.0 -5875 -5871 -5875 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 23:31:30 6.6 -5277 10.9 -4373 -2.8 ---- Weather Log ---- Wind 1 um DIMM IRSC Time Temp C Dewp C MPH Dir Dust fwhm mean sigma 18:00 9.2 4.9 13.0 67.2 98 18:15 9.8 5.2 0.5 14.0 dpDep 18:30 9.9 4.7 15.8 65.2 dpDep 18:45 10.1 4.8 10.3 84.3 dpDep 19:00 10.2 4.0 24.3 68.6 67 19:15 10.4 3.8 15.8 81.9 101 19:30 10.6 2.9 19.9 82.0 115 19:45 10.9 3.8 15.5 74.6 101 20:00 11.1 5.2 13.0 58.7 93 20:15 10.3 5.3 6.2 34.5 102 20:30 10.4 4.1 8.7 36.8 dpDep 20:45 10.7 4.6 14.4 43.6 91 21:00 10.5 4.7 13.8 72.8 86 21:15 10.6 4.3 11.2 85.3 84 21:30 10.8 3.9 8.9 79.7 85 21:45 10.5 4.3 11.7 82.3 56 22:00 10.5 4.4 5.8 12.8 79 22:15 10.6 4.6 11.6 76.2 92 22:30 10.4 5.1 5.0 55.4 88 22:45 10.8 5.0 3.5 11.6 112 23:00 10.7 5.0 5.5 27.2 97 23:15 10.0 4.7 9.2 18.3 96 23:30 10.1 5.4 5.1 61.6 109 23:45 9.4 5.9 2.8 38.5 dpDep 00:00 8.8 6.1 10.1 79.8 dpDep 00:15 8.7 6.2 8.2 63.7 dpDep 00:30 8.4 6.1 3.0 89.6 dpDep 00:45 8.2 6.2 1.0 79.1 dpDep 01:00 8.1 6.1 1.0 14.9 dpDep 01:15 7.8 6.3 1.1 10.2 dpDep 01:30 7.6 6.3 5.3 09.9 dpDep 01:45 7.8 6.4 5.1 04.6 dpDep 02:00 7.9 6.5 5.3 64.0 dpDep 02:15 7.8 6.4 9.6 93.9 dpDep 02:30 7.8 6.5 2.1 18.5 dpDep 02:45 7.9 6.3 9.0 87.6 dpDep 03:00 7.9 6.3 6.9 75.0 dpDep 03:15 7.8 6.3 0.2 68.6 dpDep 03:30 7.7 6.4 7.1 83.9 dpDep 03:45 7.7 6.2 6.7 83.4 dpDep 04:00 7.8 6.3 6.0 56.8 dpDep 04:15 7.8 6.1 8.3 10.8 dpDep 04:30 7.7 6.2 1.5 14.3 dpDep 04:45 7.7 6.2 0.6 68.1 dpDep 05:00 7.7 6.0 2.5 44.3 dpDep 05:15 7.6 5.9 0.7 08.6 dpDep 05:30 7.8 5.4 8.7 28.5 dpDep 05:45 7.7 5.7 2.4 73.1 dpDep 06:00 7.6 5.4 5.5 20.7 dpDep 06:15 7.6 5.4 8.1 30.1 dpDep 06:30 7.6 5.3 3.0 45.6 dpDep 06:45 7.5 5.4 1.7 57.1 dpDep 07:00 7.5 5.5 1.7 24.4 dpDep 07:15 7.4 4.8 8.1 86.2 dpDep 07:30 7.1 5.0 10.5 02.8 dpDep 356 15.03 07:45 7.2 5.1 12.0 28.2 dpDep 407 73.61 08:00 7.1 5.2 12.2 12.0 dpDep 401 71.40 08:15 7.1 5.0 8.2 90.9 dpDep 387 90.08 08:30 7.0 5.2 6.9 89.8 dpDep 343 121.74 08:45 7.0 4.9 12.3 08.2 dpDep 349 40.87 09:00 7.3 4.0 13.0 12.4 dpDep 368 127.39 09:15 7.0 4.8 11.7 10.0 dpDep 342 2.72 09:30 6.8 4.4 11.6 10.4 dpDep 346 16.81 09:45 7.3 3.8 11.7 23.3 dpDep 390 112.63 10:00 6.8 4.7 9.6 94.8 dpDep 343 68.70 10:15 6.9 4.6 9.4 10.3 dpDep 344 28.89 10:30 6.9 3.9 12.4 13.3 dpDep 342 5.63 10:45 7.0 3.7 10.3 15.1 dpDep 350 57.63 11:00 7.0 4.0 11.5 22.1 dpDep 362 71.44 11:15 6.6 4.4 7.9 08.8 dpDep 374 88.68 11:30 6.7 4.6 10.0 11.5 dpDep 361 65.56 11:45 6.8 4.5 10.7 22.1 dpDep 566 56.52 ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61318 Fill night time in Hours below *=*=*= Total bright time : 0.2 *=*=*= Bright time, queued observations : 0 *=*=*= Bright time, commissioning/engineering: 0 *=*=*= Bright time lost to weather : 0.2 *=*=*= Bright time lost to technical issues : 0 *=*=*= Total dark time : 10.0 *=*=*= Dark time, queued observations : 0 *=*=*= Dark time, commissioning/engineering : 0 *=*=*= Dark time lost to weather : 10.0 *=*=*= Dark time lost to technical issues : 0