APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Friday September 25, 2026 (SJD 61309) ---- Observing Team ---- Dan Oravetz ---- Observing Plan ---- Fri 25 Sep 2026 61309 bright (10.0 h, w/ 0.2 h for 12 deg design) ---- Observing Summary ---- Humidity (>90%) and waves of fog and clouds persisted all night long. There were occasional periods of clear sky, but the humidity remained way above the limit. At times it was almost alarming how quickly the site went from clear skies to becoming entirely engulfed in fog! There were some striking cloud formations against the full moon, but we did not get on sky tonight. ---- Software Issues ---- The 'list_ap' output for the APOGEE evening cals indicates an error for two files: cannot read file : /data/apogee/quickred/61309/apq-57470004.fits cannot read file : /data/apogee/quickred/61309/apq-57470005.fits Both of these files exist in the stated directory and the raw images look OK, so it wasn't clear what was preventing the script from reading those files tonight. ---- Observing Log ---- ============================================================================ AFTERNOON CHECKOUT ============================================================================ All systems alive and responsive. Restarted cherno. Disk space: Filesystem Size Used Avail Use% Mounted on /dev/sdb1 1.0T 424G 600G 42% /home /dev/sdd1 22T 18T 3.6T 83% /data FPS powered on. Positioners are home/folded: 22:00:31 APO.doravetz 43 jaeger i folded=T 22:00:31 APO.doravetz 43 jaeger : text="All positioners are folded." 22:00:51 APO.doravetz 44 jaeger : permanently_disabled=463,647,986; manually_disabled=885,1339 Loaded a manual folded configuration: 22:01:20 CmdStarted: APO.doravetz 45 jaeger configuration load --from-positions 22:01:22 APO.doravetz 45 jaeger d text="Resetting cherno offsets." 22:01:22 APO.doravetz 45 jaeger d text="Focal plane scale: 1.0." 22:01:22 APO.doravetz 45 jaeger d configuration_loaded=27792,-999,-999,-999.0,-999.0,0,-999.0,-999.0,/home/sdss5/software/sdsscore/main/apo/summary_files/027XXX/0277XX/confSummary-27792.par,F 22:01:27 APO.doravetz 45 jaeger i configuration_snapshot=/data/logs/jaeger/configuration_snapshots/61309/configuration_snapshot_61309_27792.pdf 22:01:27 APO.doravetz 45 jaeger d design_preloaded=-999 22:01:27 APO.doravetz 45 jaeger : text="Configuration 27792 loaded." 22:01:27 CmdDone: APO.doravetz 45 jaeger configuration load --from-positions Took a '--no-apply' FVC image: 22:02:13 FVC Loop fvc_rms= 35.28 fvc_deltarms= 31.09 fvc_filename=/data/fcam/61309/fimg-fvc1n-0001.fits fvc_perc_90= 50.60 fvc_percent_reached= 3.40 fvc iterations= 1 Scattered-light check: 22:02:31 CmdStarted: APO.doravetz 47 fliswarm talk -n fvc expose 50 No evidence of light artifacts. GFA biases, darks, and flat: 22:07:11 CmdStarted: APO.doravetz 48 fliswarm talk -c gfa expose --bias --count 10 22:08:44 CmdStarted: APO.doravetz 49 fliswarm talk -c gfa expose --dark --count 5 5 22:10:08 CmdStarted: APO.doravetz 51 fliswarm talk -c gfa expose --flat 1 Exercised positioners: 22:10:32 CmdStarted: APO.doravetz 53 jaeger configuration random --danger 22:12:35 APO.doravetz 53 jaeger d trajectory_dump_file=/data/logs/jaeger/trajectories/61309/trajectory-61309-0001.json 22:12:35 CmdDone: APO.doravetz 53 jaeger configuration random --danger 22:12:40 .jaeger 0 jaeger i snapshot=/data/logs/jaeger/snapshots/61308/fps_snapshot_61308_0001.pdf 22:13:20 CmdStarted: APO.doravetz 54 jaeger configuration reverse BOSS hartmanns, arc, flat: 22:17:28 BOSS expNum=404877, expTime= 4.0s 22:18:09 BOSS expNum=404878, expTime= 4.0s 22:18:52 sp1.motor.move= 23, 19, 26 22:18:52 Hartmann collimate output sp1: offset: r= -659 (In Focus); b= -2.2 (In Focus) sp1: pred. move: spAverageMove= 24 sp1: pred. resid: r= -683, b= -2.1, txt= OK, spTemp = 9.0 22:19:10 BOSS expNum=404879, expTime= 4.0s 22:20:46 BOSS expNum=404880, expTime= 25.0s Ventilation delayed due to fog and high humidity. ============================================================================ NIGHT ============================================================================ Opening at sunset delayed due to persistent fog. 06:05Z - Humidity is still nearly 100%. There have been some periods of clear sky, but the air is saturated and everything is dripping wet outside. 07:47Z - Completed engulfed in fog. There are some actual radar returns to the east nearby. 10:34Z - 100% reported RH. Still socked-in with fog. Called it a night. FPS powered-off. Positioners are home/folded. APOGEE morning cals started. ---- 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: -6.1110 -6.1140 Axial C: -6.0770 -6.0790 Trans D: 0.1970 0.2050 GALILS Commanded: 361950 382650 342350 -1500 1800 Actual: 322015 350071 299539 -1500 1800 SETMIR VALUES SecDesOrient: 257.0 14.2 5.9 -72.0 -12.76 SecOrient: 257.07 14.23 5.84 -72.39 -13.21 ---- Telescope Status ---- Status at close: Telescope stowed at: 121.0, 30.0, 0.0 mount Instrument mounted: FPS Counterweights at: manually adjusted for telescope balance w/ FPS mounted LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 96 lbs, 24 psi FPS Status ========== CP10 Loop = 7.59 L/min GFA Loop = 2.36 L/min Supply pressure = 42.9 psi Return pressure = 28.3 psi Chiller Status ============== Set temperarature = 15.9 C Flow = 5.2 Gpm ---- Software Used ---- 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 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 available apogeecal : not available apogeeql : 2.0.0a0 boson : 0.7.0 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 ---- APOGEE Data Summary ---- 61308 morning cals: 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 16 11:25 57460016 Dark 60 A 13.0 ---------- a-b-c - - 61308 17 11:36 57460017 Dark 60 A 13.0 ---------- a-b-c - - 61308 18 11:47 57460018 Dark 60 A 13.0 ---------- a-b-c - - 61308 19 11:49 57460019 QuarFlat 10 A 13.0 ---------- a-b-c - 103 61308 20 11:51 57460020 QuarFlat 10 A 13.0 ---------- a-b-c - 103 61308 21 11:52 57460021 QuarFlat 10 A 13.0 ---------- a-b-c - 103 61308 22 11:55 57460022 Arc-Thar 12 B 13.5 ---------- a-b-c 3.68 101 61308 23 12:02 57460023 Arc-Une 40 B 13.5 ---------- a-b-c 3.71 94 61308 24 12:04 57460024 Arc-Thar 12 A 13.0 ---------- a-b-c 3.13 103 61308 25 12:11 57460025 Arc-Une 40 A 13.0 ---------- a-b-c 3.17 96 61308 26 12:17 57460026 Dark 30 A 13.0 ---------- a-b-c - - 61308 27 12:22 57460027 InteFlat 30 A 13.0 ---------- a-b-c - - 61308 28 12:27 57460028 InteFlat 30 A 13.0 ---------- a-b-c - - 61308 29 12:33 57460029 InteFlat 30 A 13.0 ---------- a-b-c - - 61308 30 12:38 57460030 Dark 30 A 13.0 ---------- a-b-c - - 61308 31 12:44 57460031 Arc---- 30 A 13.0 ---------- a-b-c - 97 FPI A 61308 32 12:49 57460032 Arc---- 30 B 13.5 ---------- a-b-c - 95 FPI B ------------------------------------------------------------------------------ (observers39) [observer@sdss5-hub: ~]$ list_ap APOGEE data list, mjd=61309, all raw_data: /data/apogee/utr_cdr/61309/apRaw-*.fits archive: /data/apogee/archive/61309/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61309/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61309 1 21:59 57470001 Dark 3 B 13.5 ---------- a-b-c - - 61309 2 22:25 57470002 Dark 60 B 13.5 ---------- a-b-c - - 61309 3 22:27 57470003 QuarFlat 10 B 13.5 ---------- a-b-c - 104 cannot read file : /data/apogee/quickred/61309/apq-57470004.fits cannot read file : /data/apogee/quickred/61309/apq-57470005.fits 61309 6 22:38 57470006 Arc-Une 12 A 13.0 ---------- a-b-c 3.10 3 61309 7 22:46 57470007 Arc---- 40 A 13.0 ---------- a-b-c - 18 61309 8 22:57 57470008 Dark 60 A 13.0 ---------- a-b-c - - 61309 9 23:02 57470009 Arc---- 30 A 13.0 ---------- a-b-c - 94 FPI A 61309 10 23:08 57470010 Arc---- 30 B 13.5 ---------- a-b-c - 96 FPI B ------------------------------------------------------------------------------ ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61309 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 21:58 r1-00404874 ----------- ---- bia Clo 0.0 -3170 -3169 -3177 2 21:58 b1-00404874 ----------- ---- bia Clo 0.0 -3170 -3169 -3177 3 22:15 r1-00404875 -999--999 27792 arc Lef 4.1 -3170 -3169 -3177 HART 4 22:15 b1-00404875 -999--999 27792 arc Lef 4.1 -3170 -3169 -3177 HART 5 22:16 b1-00404876 -999--999 27792 arc Rig 4.1 -3170 -3169 -3177 HART 6 22:16 r1-00404876 -999--999 27792 arc Rig 4.1 -3170 -3169 -3177 HART 7 22:17 b1-00404877 -999--999 27792 arc Lef 4.1 -3146 -3143 -3150 HART 8 22:17 r1-00404877 -999--999 27792 arc Lef 4.1 -3146 -3143 -3150 HART 9 22:18 r1-00404878 -999--999 27792 arc Rig 4.1 -3146 -3143 -3150 HART 10 22:18 b1-00404878 -999--999 27792 arc Rig 4.1 -3146 -3143 -3150 HART 11 22:19 b1-00404879 -999--999 27792 arc Out 4.1 -3123 -3124 -3124 12 22:19 r1-00404879 -999--999 27792 arc Out 4.1 -3123 -3124 -3124 13 22:20 r1-00404880 -999--999 27792 fla Out 25.1 -3123 -3124 -3124 14 22:20 b1-00404880 -999--999 27792 fla Out 25.1 -3123 -3124 -3124 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 22:18:40 8.6 -659 -2.2 24 -2.1 ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61309 Fill night time in Hours below *=*=*= Total bright time : 10.0 *=*=*= Bright time, queued observations : 0 *=*=*= Bright time, commissioning/engineering: 0 *=*=*= Bright time lost to weather : 10.0 *=*=*= 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