APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Thursday September 24, 2026 (SJD 61308) ---- Observing Team ---- Dmitry Bizyaev ---- Observing Plan ---- Thu 24 Sep 2026 61308 0.98 01:50 02:04 11:45 19:17 04:59 Day bright ( 9.9 h, w/ 0.2 h for 12 deg design) ---- Observing Summary ---- The entire night was lost to rain, cloudy sky, and high humidity. ---- Observing Log ---- Afternoon ========= All systems checked and no problems found. The BOSS collimation looks ok, not adjusted: 00:11:10 Hartmann collimate output sp1: offset: r= -329 (In Focus); b= -4.2 (Out of focus) sp1: pred. move: spAverageMove= 510 sp1: pred. resid: r= -839, b= -2.6, txt= OK, spTemp = 9.0 cwPositions = 32 31 32 31; MCP instr = 10 (mounted); ---------- motorPosition sp1: -3170, -3169, -3177; ---------- Median spectrographs temperatures: Tsp1= 9.0 Outside air temperature= 0.0; ---------- Boss CCD Temp : sp1r0= -124.6 (-126.6); sp1b2= -99.6 (-100.0); sp1LN2: 10.0; ---------- Apogee: vacuum = 9.114e-07 ( < 1.1e-06 ) ln2Level = 93.032 ( > 85 ) ---------- Weather: Humidity = 41.8 % AirTemp = 11.1 C, DpTemp = -1.4 C diff= 12.5 C wind25m = 5.3 mph, direction = 89.0 deg ---------- semOwner = mcpop:mcpop:58312 stuiVer=(1.7.19 2023-01-12), pid = 19582 memory = 478 MB ---------- Jaeger disabled robots: 647, 885, 986, 1339 There are 4 disabled robots 22:16:04 boss exposure 20 sec file=0404868 dark 22:17:58 apogee exposure file= apRaw-57460002 60 B Dark 22:18:11 apogee exposure file= apRaw-57460003 10 B QuartzFlat 22:20:04 apogee exposure file= apRaw-57460004 12 B ArcLamp 22:22:17 apogee exposure file= apRaw-57460005 40 B ArcLamp 22:29:34 apogee exposure file= apRaw-57460006 12 A ArcLamp 22:31:47 apogee exposure file= apRaw-57460007 40 A ArcLamp 22:39:35 apogee exposure file= apRaw-57460008 60 A Dark 22:50:05 apogee exposure file= apRaw-57460009 30 A ArcLamp 22:55:28 apogee exposure file= apRaw-57460010 30 B ArcLamp 00:09:09 boss exposure 4 sec file=0404869 arc 00:09:50 boss exposure 4 sec file=0404870 arc 00:11:06 Hartmann: offset r= -329 (In Focus) b = -4.2 (Out of focus) pred_move = 510 pred_resid r= -839 b= -2.6 cmnt=OK 00:14:44 boss exposure 4 sec file=0404871 arc Similar to the prior night, not all APOGE evening calibrations look normal, although all files are in place. Maybe it is connected to incorrect keywords in headers. I plan to repeat arc lamp calibrations. UPDATE: later I compared keywords in the headers of apq- files for exposures 05 (UNe, bad for list_ap) and 13 (UNe, good for list_ap) and didn't find any difference. Finally, the probem was trced down to non-existence of files /data/apogee/archive/61308/apR-{a,b,c}-57460004.apz and /data/apogee/archive/61308/apR-{a,b,c}-57460005.apz 00:19:26 apogee exposure file= apRaw-57460011 10 A QuartzFlat 00:20:21 boss exposure 25 sec file=0404872 flat 00:21:21 apogee exposure file= apRaw-57460012 12 B ArcLamp Ventilation postponed due to overcast sky and radars over the site. 00:23:33 apogee exposure file= apRaw-57460013 40 B ArcLamp 00:30:51 apogee exposure file= apRaw-57460014 12 A ArcLamp 00:33:04 apogee exposure file= apRaw-57460015 40 A ArcLamp The second attempt to complete APOGEE arc calibrations worked well: 61308 11 00:20 57460011 QuarFlat 10 A 13.0 ---------- a-b-c - 103 61308 12 00:23 57460012 Arc-Thar 12 B 13.5 ---------- a-b-c 3.68 102 61308 13 00:30 57460013 Arc-Une 40 B 13.5 ---------- a-b-c 3.70 96 61308 14 00:32 57460014 Arc-Thar 12 A 13.0 ---------- a-b-c 3.12 103 61308 15 00:39 57460015 Arc-Une 40 A 13.0 ---------- a-b-c 3.17 97 ===== Night ===== Opening delayed because of nearby radars and mostly cloudy sky. Rain, heavy rain, clouds, high humidity and high winds all night long. num field design config exptype dithpix nread relflux okay dx dy sigx sigy fpi1 fpi2 -------- ----- ------ ------ ------------ ------- ----- ------- ----- ------- ------- ------ ------ ---- ---- 57460001 -999 -999 27790 ARCLAMP-None 13.5 3 0 False 0.00 0.00 0.00 0.00 0 0 57460002 -999 -999 27790 DARK 13.5 60 -35 True -- -- -- -- -- -- 57460003 -999 -999 27791 QUARTZFLAT 13.5 10 112 True -- 0.72 -- 0.86 -- -- 57460006 -999 -999 27791 ARCLAMP-UNE 13.0 12 58 True -13.44 -- 1.17 -- -- -- 57460007 -999 -999 27791 ARCLAMP-UNE 13.0 40 26 True -8.13 -4.96 4.00 0.95 -- -- 57460008 -999 -999 27791 DARK 13.0 60 -5 True -- -- -- -- -- -- 57460009 -999 -999 27791 FPI 13.0 30 243 True 13.10 -5.11 1.12 0.91 -- -- 57460010 -999 -999 27791 FPI 13.5 30 238 True -11.08 -5.08 1.12 0.91 -- -- 57460011 -999 -999 27791 QUARTZFLAT 13.0 10 113 True -- 0.74 -- 0.86 -- -- 57460012 -999 -999 27791 ARCLAMP-THAR 13.5 12 1 True -1.79 -- 1.21 -- -- -- 57460013 -999 -999 27791 ARCLAMP-UNE 13.5 40 2 True -7.58 -- 0.76 -- -- -- 57460014 -999 -999 27791 ARCLAMP-THAR 13.0 12 1 True -2.75 -5.11 1.14 0.76 -- -- 57460015 -999 -999 27791 ARCLAMP-UNE 13.0 40 2 True -8.48 -- 0.30 -- -- -- num exptype nread mtp1 mtp2 mtp3 mtp4 mtp5 mtp6 mtp7 mtp8 mtp9 mtp10 -------- ---------- ----- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----- 57460003 QUARTZFLAT 10 70 80 90 101 100 95 96 99 99 90 57460011 QUARTZFLAT 10 71 82 90 101 100 95 97 99 99 91 ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: -5.4260 -5.4260 Axial B: -5.0380 -5.0390 Axial C: -5.2780 -5.2780 Trans D: -0.8720 -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: -6.0770 -6.0790 Trans D: 0.1970 0.2050 GALILS Commanded: 359500 381100 341900 -1500 1800 Actual: 321687 349838 299936 -1500 1800 SETMIR VALUES SecDesOrient: 257.0 14.2 5.9 -72.0 -12.76 SecOrient: 256.98 13.99 5.95 -71.75 -12.49 ---- Telescope Status ---- Not opened. No interlocks bypassed Status at: 11:12Z 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 142 lbs, 22 psi FPS Status ========== CP10 Loop = 7.58 L/min GFA Loop = 2.26 L/min Supply pressure = 43.0 psi Return pressure = 28.5 psi Chiller Status ============== Set temperarature = 16.0 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 3.6T 83% /data ---- APOGEE Data Summary ---- Last morning's calibrations look OK: 61307 16 10:01 57450016 Dark 60 A 13.0 ---------- a-b-c - - 61307 17 10:11 57450017 Dark 60 A 13.0 ---------- a-b-c - - 61307 18 10:22 57450018 Dark 60 A 13.0 ---------- a-b-c - - 61307 19 10:24 57450019 QuarFlat 10 A 13.0 ---------- a-b-c - 104 61307 20 10:26 57450020 QuarFlat 10 A 13.0 ---------- a-b-c - 103 61307 21 10:28 57450021 QuarFlat 10 A 13.0 ---------- a-b-c - 103 61307 22 10:30 57450022 Arc-Thar 12 B 13.5 ---------- a-b-c 3.67 101 61307 23 10:37 57450023 Arc-Une 40 B 13.5 ---------- a-b-c 3.71 95 61307 24 10:39 57450024 Arc-Thar 12 A 13.0 ---------- a-b-c 3.12 103 61307 25 10:47 57450025 Arc-Une 40 A 13.0 ---------- a-b-c 3.17 97 61307 26 10:52 57450026 Dark 30 A 13.0 ---------- a-b-c - - 61307 27 10:57 57450027 InteFlat 30 A 13.0 ---------- a-b-c - - 61307 28 11:03 57450028 InteFlat 30 A 13.0 ---------- a-b-c - - 61307 29 11:08 57450029 InteFlat 30 A 13.0 ---------- a-b-c - - 61307 30 11:14 57450030 Dark 30 A 13.0 ---------- a-b-c - - 61307 31 11:19 57450031 Arc---- 30 A 13.0 ---------- a-b-c - 95 FPI A 61307 32 11:24 57450032 Arc---- 30 B 13.5 ---------- a-b-c - 97 FPI B APOGEE data list, mjd=61308, all raw_data: /data/apogee/utr_cdr/61308/apRaw-*.fits archive: /data/apogee/archive/61308/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61308/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61308 1 22:06 57460001 Arc---- 3 B 13.5 ---------- a-b-c - -6 test 61308 2 22:17 57460002 Dark 60 B 13.5 ---------- a-b-c - - 61308 3 22:19 57460003 QuarFlat 10 B 13.5 ---------- a-b-c - 104 cannot read file : /data/apogee/quickred/61308/apq-57460004.fits cannot read file : /data/apogee/quickred/61308/apq-57460005.fits 61308 6 22:31 57460006 Arc-Une 12 A 13.0 ---------- a-b-c 3.04 3 61308 7 22:38 57460007 Arc---- 40 A 13.0 ---------- a-b-c - 18 61308 8 22:49 57460008 Dark 60 A 13.0 ---------- a-b-c - - 61308 9 22:55 57460009 Arc---- 30 A 13.0 ---------- a-b-c - 95 FPI A 61308 10 23:00 57460010 Arc---- 30 B 13.5 ---------- a-b-c - 96 FPI B 61308 11 00:20 57460011 QuarFlat 10 A 13.0 ---------- a-b-c - 103 61308 12 00:23 57460012 Arc-Thar 12 B 13.5 ---------- a-b-c 3.68 102 61308 13 00:30 57460013 Arc-Une 40 B 13.5 ---------- a-b-c 3.70 96 61308 14 00:32 57460014 Arc-Thar 12 A 13.0 ---------- a-b-c 3.12 103 61308 15 00:39 57460015 Arc-Une 40 A 13.0 ---------- a-b-c 3.17 97 ------------------------------------------------------------------------------ ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61308 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 22:06 r1-00404867 ----------- ---- bia Clo 0.0 -3680 -3682 -3687 2 22:06 b1-00404867 ----------- ---- bia Clo 0.0 -3680 -3682 -3687 3 22:16 r1-00404868 ----------- ---- dar Clo 20.0 -3680 -3682 -3687 4 22:16 b1-00404868 ----------- ---- dar Clo 20.0 -3680 -3682 -3687 5 00:09 b1-00404869 -999--999 27791 arc Lef 4.1 -3680 -3682 -3687 HART 6 00:09 r1-00404869 -999--999 27791 arc Lef 4.1 -3680 -3682 -3687 HART 7 00:10 r1-00404870 -999--999 27791 arc Rig 4.1 -3680 -3682 -3687 HART 8 00:10 b1-00404870 -999--999 27791 arc Rig 4.1 -3680 -3682 -3687 HART 9 00:14 b1-00404871 -999--999 27791 arc Out 4.1 -3170 -3169 -3177 10 00:14 r1-00404871 -999--999 27791 arc Out 4.1 -3170 -3169 -3177 11 00:20 r1-00404872 -999--999 27791 fla Out 25.1 -3170 -3169 -3177 12 00:20 b1-00404872 -999--999 27791 fla Out 25.1 -3170 -3169 -3177 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 00:11:00 8.6 -329 -4.2 510 -2.6 ---- Weather Log ---- Wind 1 um DIMM IRSC Time Temp C Dewp C MPH Dir Dust fwhm mean sigma 19:00 11.8 -0.3 14.0 88.1 369 19:15 12.0 -0.4 16.7 12.6 464 19:30 12.4 -0.6 19.9 02.1 407 19:45 12.0 -0.8 12.0 88.8 360 20:00 11.9 -0.8 12.6 84.2 383 20:15 11.6 -0.8 9.7 03.2 556 20:30 11.4 -0.9 2.0 57.6 47076 20:45 11.0 -0.8 5.6 56.8 61153 21:00 10.7 -1.0 11.3 38.6 354 21:15 10.9 -0.9 9.1 72.6 501 21:30 12.1 -1.3 7.4 38.0 472 21:45 11.9 -1.1 6.9 59.3 408 22:00 12.4 -1.4 6.3 16.6 371 22:15 11.8 -1.3 11.5 26.2 384 22:30 11.4 -1.4 14.3 33.6 408 22:45 11.6 -1.3 15.6 26.1 257 23:00 11.4 -1.2 20.7 46.7 165 23:15 10.6 -1.8 14.8 35.5 210 23:30 11.7 -1.3 9.1 16.8 119 23:45 11.5 -1.5 18.9 32.8 125 00:00 11.2 -1.6 15.2 26.3 175 00:15 11.1 -1.4 4.4 94.1 176 00:30 10.8 -1.8 12.2 25.7 223 00:45 10.9 -1.6 10.5 14.6 164 01:00 11.2 -1.9 18.0 28.8 230 01:15 11.4 -1.8 12.9 33.6 330 01:30 12.2 -1.3 8.5 77.8 420 01:45 11.9 -1.4 8.7 82.5 344 02:00 11.6 -1.4 10.1 75.0 423 02:15 11.6 -1.4 9.6 50.0 539 02:30 11.2 -1.3 10.8 26.5 599 02:45 11.4 -1.3 7.8 46.0 587 03:00 11.6 -1.3 12.8 42.4 633 03:15 10.8 -1.3 15.6 34.2 575 03:30 10.7 -1.3 18.2 44.1 474 03:45 10.3 -1.8 12.0 21.3 507 04:00 11.0 -2.6 13.4 35.1 448 04:15 10.6 -1.4 9.8 48.0 439 04:30 10.5 -2.3 9.6 86.2 471 04:45 9.9 -3.1 13.0 81.1 449 05:00 9.8 -2.7 13.2 90.3 440 05:15 9.6 -2.2 5.0 67.9 474 05:30 6.6 -4.7 8.4 26.7 1424 05:45 7.3 -2.5 17.7 32.4 176 06:00 8.1 -4.4 14.9 34.9 379 06:15 8.2 -2.6 11.2 35.6 402 06:30 9.0 -3.7 14.3 59.3 417 06:45 9.7 -3.8 18.9 32.8 389 07:00 9.4 -4.2 11.2 46.3 265 07:15 9.7 -3.9 15.4 44.1 242 07:30 9.7 -4.4 14.6 47.0 273 07:45 9.6 -6.8 18.8 35.5 346 08:00 9.3 -10.9 18.8 25.8 321 08:15 9.2 -13.6 10.7 10.8 336 08:30 9.6 -11.5 10.2 38.8 236 08:45 9.6 -12.2 16.3 39.5 234 09:00 9.4 -13.1 18.4 25.9 61381 09:15 9.4 -15.1 18.2 43.3 152 09:30 9.0 -16.6 16.0 58.0 156 09:45 9.6 -15.8 2.9 57.3 203 10:00 9.2 -15.3 11.3 12.3 201 10:15 9.0 -13.6 7.3 92.0 251 10:30 9.6 -14.4 15.5 89.8 11470 ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61308 Fill night time in Hours below *=*=*= Total bright time : 9.9 *=*=*= Bright time, queued observations : 0 *=*=*= Bright time, commissioning/engineering: 0 *=*=*= Bright time lost to weather : 9.9 *=*=*= Bright time lost to technical issues : 0 *=*=*= Total dark time : 0 *=*=*= Dark time, queued observations : 0 *=*=*= Dark time, commissioning/engineering : 0 *=*=*= Dark time lost to weather : 0 *=*=*= Dark time lost to technical issues : 0