APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Sunday April 12, 2026 (SJD 61143) ---- Observing Team ---- Dmitry Bizyaev ---- Observing Plan ---- Sun 12 Apr 2026 61143 0.21 02:26 02:41 11:25 09:03 17:48 --- dark ( 8.7 h) plus 1.1 h for 8 deg design ---- Observing Summary ---- The entire night was lost due to cloudy sky, nearby radar returns, and high winds. ---- Observing Log ---- Afternoon ========= All systems found alive and responsive. The BOSS collimation looks OK, not adjusted: 00:22:36 Hartmann collimate output sp1: offset: r= -1319 (Out of focus); b= -1.2 (In Focus) sp1: pred. move: spAverageMove= -467 sp1: pred. resid: r= -852, b= -2.7, txt= OK, spTemp = 5.8 cwPositions = 33 32 33 32; MCP instr = 10 (mounted); ---------- motorPosition sp1: -1788, -1738, -1719; ---------- Median spectrographs temperatures: Tsp1= 5.9 Outside air temperature= 0.0; ---------- Boss CCD Temp : sp1r0= -126.2 (-126.6); sp1b2= -101.6 (-100.0); sp1LN2: 10.0; ---------- Apogee: vacuum = 5.854e-07 ( < 1.1e-06 ) ln2Level = 92.704 ( > 85 ) ---------- Weather: Humidity = 26.3 % AirTemp = 11.1 C, DpTemp = -7.6 C diff= 18.7 C wind25m = 20.9 mph, direction = 257.7 deg ---------- semOwner = TCC:0:0 stuiVer=(1.7.19 2023-01-12), pid = 16611 memory = 479 MB ---------- Jaeger disabled robots: 572, 647, 973, 986, 1039 There are 5 disabled robots 23:24:22 apogee exposure file= apRaw-55810001 3 B ArcLamp ======================================================= =====>>>>> 23:25:46 Config Loaded: -999--999-26074 ======================================================= 23:26:28 FVC exposure image /data/fcam/61143/proc-fimg-fvc1n-0001.fits 23:26:27 fvc_perc_90= 51.0 fvc_percent_reached= 2.2 fvc_rms= 37.2 23:26:26 boss exposure 0 sec file=0399884 bias 23:26:54 apogee exposure file= apRaw-55810002 60 B Dark 23:28:06 boss exposure 20 sec file=0399885 dark 23:37:46 apogee exposure file= apRaw-55810003 10 B QuartzFlat 23:39:39 apogee exposure file= apRaw-55810004 12 B ArcLamp 23:41:51 apogee exposure file= apRaw-55810005 40 B ArcLamp 23:49:08 apogee exposure file= apRaw-55810006 12 A ArcLamp 23:51:21 apogee exposure file= apRaw-55810007 40 A ArcLamp 23:58:47 apogee exposure file= apRaw-55810008 60 A Dark 00:09:39 apogee exposure file= apRaw-55810009 30 A ArcLamp 00:15:02 apogee exposure file= apRaw-55810010 30 B ArcLamp 00:20:36 boss exposure 4 sec file=0399886 arc 00:21:16 boss exposure 4 sec file=0399887 arc 00:22:33 Hartmann: offset r= -1319 (Out of focus) b = -1.2 (In Focus) pred_move = -467 pred_resid r= -852 b= -2.7 cmnt=OK 00:23:18 boss exposure 4 sec file=0399888 arc 00:25:08 boss exposure 25 sec file=0399889 flat Ventilation postponed because of radar spots in the county and an approaching weather system. ===== Night ===== Given the approaching cloud front, partly cloudy sky, and close to yellow wind, opening postponed. 06:30Z radars are out of the county borders. The wind is at the limit. The sky is cloudy. There is a chance that the sky will improve. I started ventilation. 11:05Z the sky conditions don't improve. Calling it a night. Calibrations started. 01:16:33 boss exposure 900 sec file=0399890 dark 01:34:07 boss exposure 900 sec file=0399891 dark [ (55810001, 3, 3, '/data/apogee/raw/61143/apRaw-55810001-001.fits', 'ARCLAMP', 'None', '', '26073', '-999', '-999', 32.041, '2026-04-12T23:24:22.218', 'Podium', 'Closed', 'Closed', 61143, 'APO', 13.499)] problem with exposure: 55810001 num field design config exptype dithpix nread relflux okay dx dy sigx sigy fpi1 fpi2 -------- ----- ------ ------ ------------ ------- ----- ------- ----- ------- ------- ------ ------ ---- ---- 55810001 -999 -999 26073 ARCLAMP-None 13.5 3 0 False 0.00 0.00 0.00 0.00 0 0 55810002 -999 -999 26074 DARK 13.5 60 -35 True -- -- -- -- -- -- 55810003 -999 -999 26074 QUARTZFLAT 13.5 10 110 True -- 0.66 -- 0.86 -- -- 55810004 -999 -999 26074 ARCLAMP-THAR 13.5 12 1 True -3.81 -5.17 1.18 0.76 -- -- 55810005 -999 -999 26074 ARCLAMP-UNE 13.5 40 2 True 2.54 -5.04 1.11 0.84 -- -- 55810006 -999 -999 26074 ARCLAMP-THAR 13.0 12 90 True 24.09 1.38 1.06 0.80 -- -- 55810007 -999 -999 26074 ARCLAMP-UNE 13.0 40 2 True -10.54 -5.18 0.30 0.79 -- -- 55810008 -999 -999 26074 DARK 13.0 60 -5 True -- -- -- -- -- -- 55810009 -999 -999 26074 FPI 13.0 30 240 True 11.08 -5.17 1.12 0.90 -- -- 55810010 -999 -999 26074 FPI 13.5 30 236 True -0.74 -5.19 1.11 0.91 -- -- num exptype nread mtp1 mtp2 mtp3 mtp4 mtp5 mtp6 mtp7 mtp8 mtp9 mtp10 -------- ---------- ----- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----- 55810003 QUARTZFLAT 10 74 79 90 100 100 94 96 99 99 91 ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: 0.0040 0.0050 Axial B: -0.0290 -0.0270 Axial C: -0.1780 -0.1760 Trans D: -0.0200 -0.0200 Lateral E: 0.3400 0.3400 Lateral F: 0.5475 0.5475 GALILS Commanded: 8450 -1050 8800 22100 -2000 -1700 Actual: 8450 -1050 8800 22100 -2000 -1700 SETMIR VALUES PrimDesOrient: 0.0 2.03 16.67 -410.97 -787.67 PrimOrient: 1.06 2.03 16.67 -410.97 -787.67 SECONDARY: ---------- Focus: 0.0000 Air temp: 0.00 Altitude: 30.0 MIGS TONIGHT NOMINAL Axial A: -7.6400 -7.6400 Axial B: -7.5340 -7.5330 Axial C: -7.5270 -7.5280 Trans D: 0.2030 0.1940 GALILS Commanded: 2248750 2247300 2241000 -1750 -1700 Actual: 2215641 2225266 2199250 -1750 -1700 SETMIR VALUES SecDesOrient: 1757.0 7.9 1.5 -39.3 35.42 SecOrient: 1756.86 7.88 1.43 -39.35 35.19 ---- Telescope Status ---- Not opened. No interlocks bypassed Status at: 11:11Z Telescope stowed at: 121.0, 30.0, 0.0 mount Instrument mounted: FPS Counterweights at: n/a, FPS balanced LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 186 lbs, 20 psi FPS Status ========== CP10 Loop = 7.46 L/min GFA Loop = 2.41 L/min Supply pressure = 44.5 psi Return pressure = 29.6 psi Chiller Status ============== Set temperarature = 4.6 C Flow = 4.9 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 : 0.6.0 jaeger : 1.11.0 kaiju : 1.4.1 coordio : 1.18.1 fps_calibrati : 2025.12.04 cherno : 1.1.0 astrometrynet : 0.93 hal : 1.4.1 hartmann : 2.0.2 hub : 5.0.1a0 mcp : 2.3.1 -mcp.plc : 35 -mcp.azFiduci : v1_153 -mcp.altFiduc : v1_153 -mcp.rotFiduc : v1_153 tcc : 1.4.0 apogee : not availble apogeecal : not availble apogeeql : v1_7_0dev Boson : 0.6.0 --------------Other Versions-------------- sdss-obstools : 3.9.3 TPM : 1.2-31-gd7eb MCP : 2.3.1 idlspec2d : v6_2_1 Kronos : 2.1.0a roboscheduler : 2.1.0 /dev/sdb1 2.0T 498G 1.6T 25% /home /dev/sdd1 22T 14T 6.9T 68% /data ---- APOGEE Data Summary ---- Last morning's calibrations went well: 61142 11 11:52 55800011 Dark 60 B 13.5 ---------- a-b-c - - 61142 12 12:03 55800012 Dark 60 B 13.5 ---------- a-b-c - - 61142 13 12:14 55800013 Dark 60 B 13.5 ---------- a-b-c - - 61142 14 12:16 55800014 QuarFlat 10 B 13.5 ---------- a-b-c - 103 61142 15 12:18 55800015 QuarFlat 10 B 13.5 ---------- a-b-c - 103 61142 16 12:19 55800016 QuarFlat 10 B 13.5 ---------- a-b-c - 104 61142 17 12:22 55800017 Arc-Thar 12 B 13.5 ---------- a-b-c 1.60 100 61142 18 12:29 55800018 Arc-Une 40 B 13.5 ---------- a-b-c 1.64 98 61142 19 12:31 55800019 Arc-Thar 12 A 13.0 ---------- a-b-c 1.12 103 61142 20 12:38 55800020 Arc-Une 40 A 13.0 ---------- a-b-c 1.16 100 61142 21 12:44 55800021 Dark 30 A 13.0 ---------- a-b-c - - 61142 22 12:49 55800022 InteFlat 30 A 13.0 ---------- a-b-c - - 61142 23 12:54 55800023 InteFlat 30 A 13.0 ---------- a-b-c - - 61142 24 13:00 55800024 InteFlat 30 A 13.0 ---------- a-b-c - - 61142 25 13:05 55800025 Dark 30 A 13.0 ---------- a-b-c - - 61142 26 13:11 55800026 Arc---- 30 A 13.0 ---------- a-b-c - 99 FPI A 61142 27 13:16 55800027 Arc---- 30 B 13.5 ---------- a-b-c - 101 FPI B APOGEE data list, mjd=61143, all raw_data: /data/apogee/utr_cdr/61143/apRaw-*.fits archive: /data/apogee/archive/61143/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61143/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61143 1 23:24 55810001 Arc---- 3 B 13.5 ---------- a-b-c - 5 test 61143 2 23:37 55810002 Dark 60 B 13.5 ---------- a-b-c - - 61143 3 23:39 55810003 QuarFlat 10 B 13.5 ---------- a-b-c - 103 61143 4 23:41 55810004 Arc-Thar 12 B 13.5 ---------- a-b-c 1.61 100 61143 5 23:48 55810005 Arc-Une 40 B 13.5 ---------- a-b-c 1.64 98 61143 6 23:50 55810006 Arc-Thar 12 A 13.0 ---------- a-b-c 1.10 101 61143 7 23:58 55810007 Arc-Une 40 A 13.0 ---------- a-b-c 1.15 99 61143 8 00:09 55810008 Dark 60 A 13.0 ---------- a-b-c - - 61143 9 00:14 55810009 Arc---- 30 A 13.0 ---------- a-b-c - 101 FPI A 61143 10 00:19 55810010 Arc---- 30 B 13.5 ---------- a-b-c - 101 FPI B ... ------------------------------------------------------------------------------ ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61143 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 23:26 b1-00399884 ----------- ---- bia Clo 0.0 -1321 -1272 -1251 2 23:26 r1-00399884 ----------- ---- bia Clo 0.0 -1321 -1272 -1251 3 23:28 b1-00399885 ----------- ---- dar Clo 20.0 -1321 -1272 -1251 4 23:28 r1-00399885 ----------- ---- dar Clo 20.0 -1321 -1272 -1251 5 00:21 r1-00399886 -999--999 26074 arc Lef 4.1 -1321 -1272 -1251 HART 6 00:21 b1-00399886 -999--999 26074 arc Lef 4.1 -1321 -1272 -1251 HART 7 00:21 r1-00399887 -999--999 26074 arc Rig 4.1 -1321 -1272 -1251 HART 8 00:21 b1-00399887 -999--999 26074 arc Rig 4.1 -1321 -1272 -1251 HART 9 00:23 b1-00399888 -999--999 26074 arc Out 4.1 -1788 -1738 -1719 10 00:23 r1-00399888 -999--999 26074 arc Out 4.1 -1788 -1738 -1719 11 00:25 b1-00399889 -999--999 26074 fla Out 25.1 -1788 -1738 -1719 12 00:25 r1-00399889 -999--999 26074 fla Out 25.1 -1788 -1738 -1719 13 01:16 b1-00399890 ----------- ---- dar Clo 900.0 -1788 -1738 -1719 14 01:16 r1-00399890 ----------- ---- dar Clo 900.0 -1788 -1738 -1719 15 01:34 b1-00399891 ----------- ---- dar Clo 900.0 -1788 -1738 -1719 16 01:34 r1-00399891 ----------- ---- dar Clo 900.0 -1788 -1738 -1719 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 00:22:30 6.0 -1319 -1.2 -467 -2.7 ---- Weather Log ---- Wind 1 um DIMM IRSC Time Temp C Dewp C MPH Dir Dust fwhm mean sigma 18:00 8.6 -0.2 17.4 35.4 dpDep 18:15 9.7 -2.3 22.0 40.6 682 18:30 9.8 -1.9 23.3 38.1 951 18:45 9.2 -2.1 24.5 67.2 1199 19:00 10.8 -0.4 22.6 44.6 869 19:15 9.9 -2.6 24.3 64.1 882 19:30 10.5 -3.1 24.3 51.4 1142 19:45 10.0 -2.9 23.1 61.8 645 20:00 9.7 -3.2 22.7 35.1 706 20:15 9.9 -4.3 15.0 72.8 838 20:30 10.2 -4.4 21.7 53.3 569 20:45 11.3 -5.7 24.4 55.3 626 21:00 11.3 -5.8 19.9 28.5 588 21:15 10.5 -7.1 16.2 61.1 918 21:30 10.9 -6.7 31.2 63.5 1770 21:45 11.2 -6.7 31.3 64.3 741 22:00 11.3 -6.2 21.7 65.5 1038 22:15 11.1 -7.2 28.4 63.5 1004 22:30 10.2 -7.3 27.2 68.5 714 22:45 10.3 -7.4 30.4 69.3 1000 23:00 11.2 -6.9 31.1 54.6 1018 23:15 12.4 -6.1 28.8 63.4 764 23:30 11.6 -7.2 27.6 64.3 1061 23:45 11.4 -7.1 28.4 65.6 722 00:00 10.7 -7.7 26.7 69.9 882 00:15 10.8 -7.7 27.3 52.2 1097 00:30 10.7 -7.3 26.3 68.8 981 00:45 9.9 -7.7 28.6 72.5 1180 01:00 9.6 -8.2 24.0 50.8 1317 01:15 9.3 -8.2 20.9 57.0 1504 01:30 9.4 -7.7 19.7 57.0 1473 01:45 9.4 -6.4 22.5 54.7 1282 02:00 9.3 -5.7 26.9 58.8 1187 02:15 9.2 -4.9 25.3 66.7 2447 02:30 8.9 -4.6 28.4 67.6 2432 02:45 8.7 -3.8 23.9 60.9 1999 03:00 8.6 -3.1 24.0 61.5 1777 03:15 8.4 -2.3 24.8 48.4 1890 03:30 8.1 -1.8 17.0 78.5 1654 03:45 7.9 -1.3 22.7 57.0 1738 04:00 7.7 -1.1 30.1 69.0 1849 04:15 7.7 -1.3 26.6 63.2 1612 04:30 7.5 -1.3 30.2 55.7 1963 04:45 7.1 -1.3 30.7 39.1 2635 05:00 6.8 -1.3 27.6 66.7 2820 05:15 6.5 -1.3 25.1 70.0 2756 05:30 6.2 -1.2 22.6 43.5 2330 05:45 6.1 -1.2 23.4 48.6 2224 06:00 6.2 -1.3 17.9 65.3 1001 06:15 6.0 -1.2 26.2 69.3 716 06:30 5.9 -1.1 25.1 66.4 647 06:45 6.1 -0.9 21.0 65.4 697 384 89.61 07:00 6.2 -0.7 10.5 63.0 714 379 47.66 07:15 5.9 -0.4 15.0 73.2 813 381 59.32 07:30 6.0 -0.6 20.0 85.4 811 431 77.09 07:45 5.9 -0.8 20.1 75.0 769 430 86.00 08:00 5.9 -0.9 20.1 73.3 644 423 80.56 08:15 5.8 -0.9 15.8 65.4 646 387 75.55 08:30 6.1 -1.1 20.7 62.5 543 378 58.20 08:45 6.0 -1.3 20.3 64.8 528 404 39.70 09:00 6.0 -1.3 21.6 67.5 472 394 41.65 09:15 6.1 -1.4 19.2 58.6 419 381 61.36 09:30 5.9 -1.5 23.2 53.3 388 393 66.70 09:45 5.9 -1.5 21.7 66.6 361 392 68.62 10:00 5.8 -1.5 20.8 75.5 360 395 78.02 10:15 5.8 -1.5 19.9 68.3 369 398 43.74 10:30 5.8 -1.4 17.1 63.5 326 387 80.04 10:45 5.7 -1.4 21.2 70.5 361 382 67.89 11:00 5.6 -1.4 19.8 58.8 336 405 76.71 ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61143 Fill night time in Hours below *=*=*= Total bright time : 1.1 *=*=*= Bright time, queued observations : 0 *=*=*= Bright time, commissioning/engineering: 0 *=*=*= Bright time lost to weather : 1.1 *=*=*= Bright time lost to technical issues : 0 *=*=*= Total dark time : 8.7 *=*=*= Dark time, queued observations : 0 *=*=*= Dark time, commissioning/engineering : 0 *=*=*= Dark time lost to weather : 8.7 *=*=*= Dark time lost to technical issues : 0