APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Wednesday October 28, 2026 (SJD 61342) ---- Observing Team ---- Audrey Oravetz ---- Observing Plan ---- Wed 28 Oct 2026 61342 0.87 01:10 01:24 12:09 20:50 07:37 --- dark until 02:09 ( 0.8 h), then bright (10.2 h, w/ 0.2 h for 12 deg design) ---- Observing Summary ---- I managed to open the building when the skies were clear and humidity was low... not without difficulty, but managed to get through it. First of all, the south pin was stuck. Using the enclosure handpaddles didn't alleviate the pressure on that pin at all. In trying to get it unstuck, I overloaded the system and needed to go into the enclosure power box and reset the overload. I used the south winch, ever so slightly to pull the building a millimeter or two and managed to get that pin unstuck. I then succeeded in pulling the building off, freeing the telescope for observations. It occurred to me that it was unwise to leave the enclosure off without any brakes engaged, where (though unlikely) any strong wind gust could move the building along its track and slam into the telescope. So, I purposely removed one bolt from the southwest enclosure motor to engage the brake (with difficulty since it was screwed on tightly). When the humidity surpassed the limit again just under an hour later, I struggled to screw the bolt on to disengage the brake but eventually I was able to get it. The enclosure was placed back on, but I failed to get both locking pins back into place. The north pin slid in without a problem, but the south was misaligned ever so slightly that I just could not get it back into place. I thought about using the winch again, but then I wondered if that was the reason why the enclosure seems just a little crooked and I definitely did not want to make things worse. From the struggles I encountered and the unpredictability of the sky and humidity levels, the rest of the night was lost. Clouds and rain showed up at the end of the night. ---- Automatic Summary ---- Time Field-Design-Conf DesignType BOSS/APOGEE Seeing Overhead Complete? Comment 02:36:41 100955-753244-28066 bright_time 1x730/1xAB 1.4" 0:00 DONE 02:56:04 100488-752504-28067 bright_time 1x730/1xAB 1.5" 6:29 DONE 03:15:54 102403-754425-28068 bright_time 1x730/1xAB 1.8" 7:06 DONE ---- Observing Log ---- Afternoon: ========== 22:24:58 boss exposure 0.0, file=405748 22:26:58 boss exposure 20.0, file=405749 22:29:44 boss exposure 4.0, file=405750 22:30:24 boss exposure 4.0, file=405751 22:31:05 sp1.motor.move= 511, 514, 516 22:31:05 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 = 7.8 22:34:38 boss exposure 4.0, file=405752 22:36:08 boss exposure 25.0, file=405753 22:37:17 Config Loaded: -999-28065 22:37:51 jaeger.jaeger 626 fliswarm i filename_bundle=/data/fcam/61342/fimg-fvc1n-0001.fits 22:37:51 jaeger.jaeger 626 fliswarm : 22:37:51 CmdDone: jaeger.jaeger 626 fliswarm talk -c fvc expose 5.0 22:38:59 APO.aoravetz2 30 fliswarm i filename_bundle=/data/fcam/61342/fimg-fvc1n-0002.fits 22:38:59 APO.aoravetz2 30 fliswarm : 22:38:59 CmdDone: APO.aoravetz2 30 fliswarm talk -n fvc expose 50 fliswarm talk -c gfa expose --bias --count 10 fliswarm talk -c gfa expose --dark --count 5 5 fliswarm talk -c gfa expose --flat 1 jaeger configuration random --danger jaeger configuration reverse (observers39) [observer@sdss5-hub: ~]$ list_ap APOGEE data list, mjd=61342, all raw_data: /data/apogee/utr_cdr/61342/apRaw-*.fits archive: /data/apogee/archive/61342/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61342/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61342 1 22:35 57800001 Dark 60 B 13.5 ---------- a-b-c - - 61342 2 22:37 57800002 QuarFlat 10 B 13.5 ---------- a-b-c - 99 61342 3 22:39 57800003 Arc-Thar 12 B 13.5 ---------- a-b-c 3.90 103 61342 4 22:46 57800004 Arc-Une 40 B 13.5 ---------- a-b-c 3.91 95 61342 5 22:48 57800005 Arc-Thar 12 A 13.0 ---------- a-b-c 3.33 103 61342 6 22:56 57800006 Arc-Une 40 A 13.0 ---------- a-b-c 3.38 96 61342 7 23:07 57800007 Dark 60 A 13.0 ---------- a-b-c - - 61342 8 23:12 57800008 Arc---- 30 A 13.0 ---------- a-b-c - 95 FPI A 61342 9 23:18 57800009 Arc---- 30 B 13.5 ---------- a-b-c - 93 FPI B Did not ventilate at sunset due to high humidity. Night: ====== 02:29Z - Opened the telescope (humidity significantly lower and no clouds in sight for awhile), started ventilating, and filled the spectrograph. 02:25:35 apogee.expose=apRaw-57800010, 5, B, DomeFlat 02:26:51 apogee.expose=apRaw-57800011, 5, B, DomeFlat 02:28:07 apogee.expose=apRaw-57800012, 5, B, DomeFlat (observers39) [observer@sdss5-hub: ~]$ fps_mtps_check Globally Normalized MJD DomeFlat MTPs:1 2 3 4 5 6 7 8 9 10 AZ ALT ROT 61342 57800010 0.94 1.02 1.01 1.02 1.03 1.03 0.97 1.01 1.01 0.94 60.0 60.0 60.0 61342 57800011 0.96 1.02 1.01 1.01 1.03 1.03 0.96 1.00 1.00 0.94 60.0 60.0 60.0 61342 57800012 0.96 1.02 1.01 1.01 1.03 1.03 0.96 1.00 1.00 0.93 60.0 60.0 60.0 02:30:12 boss exposure 4.0, file=405754 02:30:52 boss exposure 4.0, file=405755 02:31:38 sp1.motor.move= 3283, 3283, 3283 02:31:38 Hartmann collimate output sp1: offset: r= 2968 (Out of focus); b= -11.3 (Out of focus) sp1: pred. move: spAverageMove= 3283 sp1: pred. resid: r= -315, b= -1.0, txt= OK, spTemp = 7.2 02:32:34 boss exposure 25.0, file=405756 02:34:21 boss exposure 25.0, file=405757 02:36:08 boss exposure 25.0, file=405758 ******************************************************** 02:36:41 Field-Design-Configuration: 100955-753244-28066 ******************************************************** 02:36:54 GOTO-FIELD 02:39:24 FVC LOOP AND BOSS CALS fvc_rms= 7.1 fvc_deltarms= 32.74 fvc_filename=/data/fcam/61342/fimg-fvc1n-0004.fits fvc_perc_90= 10.10 fvc_percent_reached= 61.60 02:40:11 boss exposure 4.0, file=405759 02:43:10 apogee.expose=apRaw-57800013, 35, B, Object 02:43:15 boss exposure 730.0, file=405760 02:49:30 apogee.expose=apRaw-57800014, 35, A, Object ******************************************************** 02:56:04 Field-Design-Configuration: 100488-752504-28067 ******************************************************** 02:56:33 GOTO-FIELD 02:59:19 FVC LOOP AND BOSS CALS fvc_rms= 24.7 fvc_deltarms= 23.83 fvc_filename=/data/fcam/61342/fimg-fvc1n-0006.fits fvc_perc_90= 9.40 fvc_percent_reached= 60.90 03:00:04 boss exposure 4.0, file=405761 03:01:26 New-field overhead: 0:05:44 03:01:49 apogee.expose=apRaw-57800015, 35, A, Object 03:01:55 boss exposure 730.0, file=405762 03:08:06 apogee.expose=apRaw-57800016, 35, B, Object ******************************************************** 03:15:54 Field-Design-Configuration: 102403-754425-28068 ******************************************************** 03:16:02 GOTO-FIELD 03:18:44 FVC LOOP AND BOSS CALS fvc_rms= 19.84 fvc_deltarms= 26.48 fvc_filename=/data/fcam/61342/fimg-fvc1n-0008.fits fvc_perc_90= 10.30 fvc_percent_reached= 57.50 03:19:31 boss exposure 4.0, file=405763 03:20:43 START SCIENCE EXPOSURES 03:21:12 boss exposure 730.0, file=405764 03:21:15 apogee.expose=apRaw-57800017, 35, A, Object 03:27:30 apogee.expose=apRaw-57800018, 35, B, Object The humidity surpassed the limit (dew point different 1.7), and was getting worse. I closed. 03:34:09 apogee.expose=apRaw-57800019, 5, B, DomeFlat 03:35:24 apogee.expose=apRaw-57800020, 5, B, DomeFlat 03:36:40 apogee.expose=apRaw-57800021, 5, B, DomeFlat 03:37:51 boss exposure 25.0, file=405765 03:39:50 boss exposure 4.0, file=405766 03:41:40 encl25m : closed; 05:07Z - Humidity 100%. Rolling fog. Started APOGEE morningcals and turned off the FPS. ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: -5.4270 -5.4260 Axial B: -5.0380 -5.0390 Axial C: -5.2790 -5.2780 Trans D: -0.8770 -0.8710 Lateral E: 0.3240 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: 0.0 -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: -7.9550 -7.9570 Axial B: -6.1110 -6.1140 Axial C: -6.0760 -6.0790 Trans D: 0.2090 0.2050 GALILS Commanded: 362850 385900 343300 -1500 1800 Actual: 321983 350040 299621 -1500 1800 SETMIR VALUES SecDesOrient: 257.0 14.2 5.9 -72.0 -12.76 SecOrient: 257.03 14.18 5.88 -71.8 -12.62 ---- Telescope Offsets and Scale ---- Fiducial errors: 02:24:10 Az: ind=21, deg=107.3, err= 113 02:24:17 Az: ind=20, deg= 92.3, err= 139 02:24:25 Az: ind=19, deg= 77.3, err= 172 02:24:33 Az: ind=18, deg= 62.3, err= 192 02:35:59 Az: ind=17, deg= 47.3, err= 4196 error is too large to be corrected ( > 600) 02:36:07 Az: ind=16, deg= 32.2, err= 213 02:36:14 Az: ind=15, deg= 17.2, err= 90 02:36:22 Az: ind=14, deg= 2.2, err= 140 02:36:29 Az: ind=13, deg=-12.8, err= -2893 error is too large to be corrected ( > 600) 02:36:37 Az: ind=12, deg=-27.8, err= 153 02:36:44 Az: ind=11, deg=-42.8, err= 104 02:36:52 Az: ind=10, deg=-57.8, err= 125 03:32:53 Az: ind=10, deg=-57.8, err= -116 03:33:00 Az: ind=11, deg=-42.8, err= -55 03:33:08 Az: ind=12, deg=-27.8, err= -82 03:33:15 Az: ind=13, deg=-12.8, err= -3036 error is too large to be corrected ( > 600) 03:33:23 Az: ind=14, deg= 2.2, err= -115 03:33:30 Az: ind=15, deg= 17.2, err= -79 03:33:38 Az: ind=16, deg= 32.2, err= -86 03:33:53 Az: ind=18, deg= 62.3, err= -157 03:34:01 Az: ind=19, deg= 77.3, err= -152 03:34:08 Az: ind=20, deg= 92.3, err= -61 03:34:15 Az: ind=21, deg=107.3, err= -141 ---- Telescope Status ---- FPS Status ========== CP10 Loop = 7.54 L/min GFA Loop = 2.34 L/min Supply pressure = 43.4 psi Return pressure = 28.4 psi Chiller Status ============== Set temperarature = 9.6 C Flow = 5.0 Gpm 01:00Z Started ventilation 01:00Z encl25m : open 03:35Z encl25m : closed No interlocks bypassed Status at: Telescope stowed at: 121.0, 30.0, 0.0 mount Instrument mounted: FPS Counterweights at: 32 LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 173 lbs, 23 psi ---- Software Used ---- Get Versions, 10/28/26, 22:23:59 -- STUI software: STUI : 1.7.21 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+3e7e2d8 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 STUIAdditions : FAILED 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 435G 589G 43% /home /dev/sdc1 22T 12T 9.6T 55% /data ---- APOGEE Data Summary ---- (observers39) [observer@sdss5-hub: ~]$ list_ap -m 61341 --morning APOGEE data list, mjd=61341, all raw_data: /data/apogee/utr_cdr/61341/apRaw-*.fits archive: /data/apogee/archive/61341/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61341/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61341 46 12:49 57790046 Dark 60 A 13.0 ---------- a-b-c - - 61341 47 12:59 57790047 Dark 60 A 13.0 ---------- a-b-c - - 61341 48 13:10 57790048 Dark 60 A 13.0 ---------- a-b-c - - 61341 49 13:12 57790049 QuarFlat 10 A 13.0 ---------- a-b-c - 98 61341 50 13:14 57790050 QuarFlat 10 A 13.0 ---------- a-b-c - 98 61341 51 13:16 57790051 QuarFlat 10 A 13.0 ---------- a-b-c - 99 61341 52 13:18 57790052 Arc-Thar 12 B 13.5 ---------- a-b-c 3.91 103 61341 53 13:25 57790053 Arc-Une 40 B 13.5 ---------- a-b-c 3.92 96 61341 54 13:27 57790054 Arc-Thar 12 A 13.0 ---------- a-b-c 3.32 103 61341 55 13:34 57790055 Arc-Une 40 A 13.0 ---------- a-b-c 3.39 95 61341 56 13:40 57790056 Dark 30 A 13.0 ---------- a-b-c - - 61341 57 13:45 57790057 InteFlat 30 A 13.0 ---------- a-b-c - - 61341 58 13:51 57790058 InteFlat 30 A 13.0 ---------- a-b-c - - 61341 59 13:56 57790059 InteFlat 30 A 13.0 ---------- a-b-c - - 61341 60 14:01 57790060 Dark 30 A 13.0 ---------- a-b-c - - 61341 61 14:07 57790061 Arc---- 30 A 13.0 ---------- a-b-c - 96 FPI A 61341 62 14:12 57790062 Arc---- 30 B 13.5 ---------- a-b-c - 95 FPI B ------------------------------------------------------------------------------ APOGEE data list, mjd=61342, all raw_data: /data/apogee/utr_cdr/61342/apRaw-*.fits archive: /data/apogee/archive/61342/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61342/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61342 1 22:35 57800001 Dark 60 B 13.5 ---------- a-b-c - - 61342 2 22:37 57800002 QuarFlat 10 B 13.5 ---------- a-b-c - 99 61342 3 22:39 57800003 Arc-Thar 12 B 13.5 ---------- a-b-c 3.90 103 61342 4 22:46 57800004 Arc-Une 40 B 13.5 ---------- a-b-c 3.91 95 61342 5 22:48 57800005 Arc-Thar 12 A 13.0 ---------- a-b-c 3.33 103 61342 6 22:56 57800006 Arc-Une 40 A 13.0 ---------- a-b-c 3.38 96 61342 7 23:07 57800007 Dark 60 A 13.0 ---------- a-b-c - - 61342 8 23:12 57800008 Arc---- 30 A 13.0 ---------- a-b-c - 95 FPI A 61342 9 23:18 57800009 Arc---- 30 B 13.5 ---------- a-b-c - 93 FPI B 61342 10 02:26 57800010 DomeFlat 5 B 13.5 -999-28065 a-b-c - 131 61342 11 02:27 57800011 DomeFlat 5 B 13.5 -999-28065 a-b-c - 132 61342 12 02:28 57800012 DomeFlat 5 B 13.5 -999-28065 a-b-c - 135 61342 13 02:48 57800013 Object 35 B 13.5 753244-28066 a-b-c 3.92 1,1 61342 14 02:55 57800014 Object 35 A 13.0 753244-28066 a-b-c 3.38 1,1 61342 15 03:07 57800015 Object 35 A 13.0 752504-28067 a-b-c 3.38 1,1 61342 16 03:13 57800016 Object 35 B 13.5 752504-28067 a-b-c 3.91 1,1 61342 17 03:26 57800017 Object 35 A 13.0 754425-28068 a-b-c 3.39 1,1 61342 18 03:33 57800018 Object 35 B 13.5 754425-28068 a-b-c 3.92 1,1 61342 19 03:34 57800019 DomeFlat 5 B 13.5 754425-28068 a-b-c - 137 61342 20 03:35 57800020 DomeFlat 5 B 13.5 754425-28068 a-b-c - 137 61342 21 03:37 57800021 DomeFlat 5 B 13.5 754425-28068 a-b-c - 133 ------------------------------------------------------------------------------ ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61342 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 22:24 b1-00405748 ----------- ---- bia Clo 0.0 -5825 -5804 -5811 2 22:24 r1-00405748 ----------- ---- bia Clo 0.0 -5825 -5804 -5811 3 22:26 r1-00405749 ----------- ---- dar Clo 20.0 -5825 -5804 -5811 4 22:26 b1-00405749 ----------- ---- dar Clo 20.0 -5825 -5804 -5811 5 22:29 b1-00405750 771635-103378 28064 arc Lef 4.1 -5825 -5804 -5811 HART 6 22:29 r1-00405750 771635-103378 28064 arc Lef 4.1 -5825 -5804 -5811 HART 7 22:30 r1-00405751 771635-103378 28064 arc Rig 4.1 -5825 -5804 -5811 HART 8 22:30 b1-00405751 771635-103378 28064 arc Rig 4.1 -5825 -5804 -5811 HART 9 22:34 r1-00405752 771635-103378 28064 arc Out 4.1 -5314 -5290 -5295 10 22:34 b1-00405752 771635-103378 28064 arc Out 4.1 -5314 -5290 -5295 11 22:36 b1-00405753 771635-103378 28064 fla Out 25.1 -5314 -5290 -5295 12 22:36 r1-00405753 771635-103378 28064 fla Out 25.1 -5314 -5290 -5295 13 02:30 b1-00405754 -999--999 28065 arc Lef 4.1 -5314 -5290 -5295 HART 14 02:30 r1-00405754 -999--999 28065 arc Lef 4.1 -5314 -5290 -5295 HART 15 02:30 r1-00405755 -999--999 28065 arc Rig 4.1 -5314 -5290 -5295 HART 16 02:30 b1-00405755 -999--999 28065 arc Rig 4.1 -5314 -5290 -5295 HART 17 02:32 b1-00405756 -999--999 28065 fla Out 25.1 -2031 -2007 -2012 18 02:32 r1-00405756 -999--999 28065 fla Out 25.1 -2031 -2007 -2012 19 02:34 b1-00405757 -999--999 28065 fla Out 25.1 -2031 -2007 -2012 20 02:34 r1-00405757 -999--999 28065 fla Out 25.1 -2031 -2007 -2012 21 02:36 r1-00405758 -999--999 28065 fla Out 25.1 -2031 -2007 -2012 22 02:36 b1-00405758 -999--999 28065 fla Out 25.1 -2031 -2007 -2012 23 02:40 r1-00405759 753244-100955 28066 arc Out 4.1 -2031 -2007 -2012 24 02:40 b1-00405759 753244-100955 28066 arc Out 4.1 -2031 -2007 -2012 25 02:43 r1-00405760 753244-100955 28066 sci Out 730.1 -2031 -2007 -2012 26 02:43 b1-00405760 753244-100955 28066 sci Out 730.1 -2031 -2007 -2012 27 03:00 b1-00405761 752504-100488 28067 arc Out 4.1 -2031 -2007 -2012 28 03:00 r1-00405761 752504-100488 28067 arc Out 4.1 -2031 -2007 -2012 29 03:01 r1-00405762 752504-100488 28067 sci Out 730.1 -2031 -2007 -2012 30 03:01 b1-00405762 752504-100488 28067 sci Out 730.1 -2031 -2007 -2012 31 03:19 b1-00405763 754425-102403 28068 arc Out 4.1 -2031 -2007 -2012 32 03:19 r1-00405763 754425-102403 28068 arc Out 4.1 -2031 -2007 -2012 33 03:21 b1-00405764 754425-102403 28068 sci Out 730.1 -2031 -2007 -2012 34 03:21 r1-00405764 754425-102403 28068 sci Out 730.1 -2031 -2007 -2012 35 03:37 r1-00405765 754425-102403 28068 fla Out 25.1 -2031 -2007 -2012 36 03:37 b1-00405765 754425-102403 28068 fla Out 25.1 -2031 -2007 -2012 37 03:39 r1-00405766 754425-102403 28068 arc Out 4.1 -2031 -2007 -2012 38 03:39 b1-00405766 754425-102403 28068 arc Out 4.1 -2031 -2007 -2012 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 22:31:00 7.8 -329 -4.2 510 -2.6 02:31:30 7.0 2968 -11.3 3283 -1.0 ---- Weather Log ---- Wind 1 um DIMM IRSC Time Temp C Dewp C MPH Dir Dust fwhm mean sigma 18:00 12.4 5.5 18.1 12.4 372 18:15 11.7 5.9 7.2 00.4 331 18:30 11.8 4.6 14.1 82.8 dpDep 18:45 12.3 3.4 12.7 22.7 274 19:00 13.4 6.2 10.5 84.0 319 19:15 13.2 4.6 10.7 07.9 254 19:30 13.1 5.3 14.8 12.6 272 19:45 13.6 5.4 7.6 61.8 312 20:00 12.3 5.3 9.0 08.4 300 20:15 12.2 4.8 12.2 24.1 292 20:30 12.7 4.6 11.5 97.2 260 20:45 12.4 5.3 9.2 38.0 317 21:00 11.7 4.1 6.1 37.6 297 21:15 13.6 5.3 11.1 01.1 351 21:30 13.5 5.6 8.5 01.1 362 21:45 13.5 5.4 3.8 79.0 306 22:00 13.2 6.3 9.9 91.8 338 22:15 14.6 6.3 13.5 05.8 347 22:30 12.4 5.2 12.5 24.7 324 22:45 11.8 5.8 10.7 11.4 312 23:00 12.1 7.7 11.1 98.8 421 23:15 13.4 8.6 5.4 98.5 dpDep 23:30 12.2 7.8 7.8 92.8 dpDep 23:45 11.2 7.7 12.7 14.9 dpDep 00:00 10.5 7.2 6.5 90.8 dpDep 00:15 9.9 7.2 4.8 94.5 dpDep 00:30 9.4 7.5 3.8 42.1 dpDep 00:45 9.4 4.7 6.6 87.1 dpDep 559 24.83 01:00 9.1 5.4 6.7 79.1 dpDep 343 15.76 01:15 9.1 5.6 5.3 88.4 dpDep 422 57.72 01:30 9.3 4.6 7.7 83.8 dpDep 567 44.83 01:45 8.5 4.7 7.6 81.3 dpDep 564 7.08 02:00 9.0 4.6 9.7 84.3 dpDep 565 28.37 02:15 9.9 4.4 10.1 90.8 336 368 43.61 02:30 9.8 5.4 14.4 89.9 dpDep 342 36.02 02:45 9.4 6.5 12.9 74.8 dpDep 342 37.24 03:00 9.2 6.6 16.6 58.3 dpDep 342 13.10 03:15 9.0 5.2 15.5 52.3 dpDep 342 2.46 03:30 8.7 6.7 17.9 42.0 dpDep 342 5.01 03:45 9.0 7.5 14.9 68.2 dpDep 342 2.49 04:00 9.6 6.3 14.2 84.6 dpDep 342 2.08 ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61342 Fill night time in Hours below *=*=*= Total bright time : 10.2 *=*=*= Bright time, queued observations : 1.5 *=*=*= Bright time, commissioning/engineering: 0 *=*=*= Bright time lost to weather : 8.7 *=*=*= Bright time lost to technical issues : 0 *=*=*= Total dark time : 0.8 *=*=*= Dark time, queued observations : 0 *=*=*= Dark time, commissioning/engineering : 0 *=*=*= Dark time lost to weather : 0.8 *=*=*= Dark time lost to technical issues : 0 Wed 28 Oct 2026 61342 0.87 01:10 01:24 12:09 20:50 07:37 --- dark until 02:09 ( 0.8 h), then bright (10.2 h, w/ 0.2 h for 12 deg design)