APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday August 31, 2026 (SJD 61284) ---- Observing Team ---- Dan Oravetz ---- Observing Plan ---- Mon 31 Aug 2026 61284 dark until 03:17 (0.6 h), then bright (9.3 h, w/ 1.2 h for 8 deg design) ---- Observing Summary ---- We had several waves of thunderstorms during the first half of the night, lasting until around midnight, but at least producing a lot of rain on site. By ~08:30Z, most of the clouds had cleared, but the 1.0um dust counts were ranging from 6-35k (that was primarily due to fog, not actual dust). By ~09:45Z more clouds started arriving and, coupled with the fog, we never opened. ---- Observing Log ---- ============================================================================ AFTERNOON CHECKOUT ============================================================================ All systems alive and responsive. Restarted cherno. Disk space: Filesystem Size Used Avail Use% Mounted on /dev/sdb1 1.0T 420G 604G 42% /home /dev/sdd1 22T 16T 5.9T 73% /data FPS powered on. Positioners are home/folded: 21:59:42 APO.doravetz 37 jaeger i folded=T 21:59:42 APO.doravetz 37 jaeger : text="All positioners are folded." 21:59:55 APO.doravetz 38 jaeger : permanently_disabled=463,647,986; manually_disabled=885,1339 Loaded a manual folded configuration: 22:00:15 CmdStarted: APO.doravetz 39 jaeger configuration load --from-positions 22:00:18 APO.doravetz 39 jaeger d text="Resetting cherno offsets." 22:00:18 APO.doravetz 39 jaeger d text="Focal plane scale: 1.0." 22:00:18 APO.doravetz 39 jaeger d configuration_loaded=27493,-999,-999,-999.0,-999.0,0,-999.0,-999.0,/home/sdss5/software/sdsscore/main/apo/summary_files/027XXX/0274XX/confSummary-27493.par,F 22:00:23 APO.doravetz 39 jaeger i configuration_snapshot=/data/logs/jaeger/configuration_snapshots/61284/configuration_snapshot_61284_27493.pdf 22:00:23 APO.doravetz 39 jaeger d design_preloaded=-999 22:00:23 APO.doravetz 39 jaeger : text="Configuration 27493 loaded." 22:00:23 CmdDone: APO.doravetz 39 jaeger configuration load --from-positions Took a '--no-apply' FVC image: 22:01:17 FVC Loop fvc_rms= 34.12 fvc_deltarms= 35.34 fvc_filename=/data/fcam/61284/fimg-fvc1n-0001.fits fvc_perc_90= 47.50 fvc_percent_reached= 3.80 fvc iterations= 1 Scattered-light check: 22:01:40 CmdStarted: APO.doravetz 41 fliswarm talk -n fvc expose 50 No evidence of light artifacts. GFA biases, darks, and flat: 22:13:08 CmdStarted: APO.doravetz 47 fliswarm talk -c gfa expose --bias --count 10 22:15:21 CmdStarted: APO.doravetz 48 fliswarm talk -c gfa expose --dark --count 5 5 22:16:41 CmdStarted: APO.doravetz 49 fliswarm talk -c gfa expose --flat 1 Exercised positioners: 22:04:32 CmdStarted: APO.doravetz 42 jaeger configuration random --danger 22:06:07 APO.doravetz 42 jaeger d trajectory_dump_file=/data/logs/jaeger/trajectories/61284/trajectory-61284-0001.json 22:06:07 CmdDone: APO.doravetz 42 jaeger configuration random --danger 22:06:12 .jaeger 0 jaeger i snapshot=/data/logs/jaeger/snapshots/61283/fps_snapshot_61283_0024.pdf 22:06:37 CmdStarted: APO.doravetz 43 jaeger configuration reverse BOSS hartmanns, arc, flat: 22:20:28 BOSS expNum=404062, expTime= 4.0s 22:21:08 BOSS expNum=404063, expTime= 4.0s 22:21:46 APOGEE expNum=57220007, reads=12, dithPos=A, ArcLamp 22:21:49 sp1.motor.move= 26, 28, 25 22:21:49 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 = 10.8 22:22:08 BOSS expNum=404064, expTime= 4.0s 22:23:41 BOSS expNum=404065, expTime= 25.0s The APOGEE evening cals didn't have flux in the images. I manually toggled the APOGEE cold shutter and the cal box shutter part-way through the cal sequence and after that toggling there was flux in 57220008 (UNe arc) and the subsequent FPI exposures. I restarted another set of evening cals. Ventilation delayed due to remnant thunderstorm clouds. ============================================================================ NIGHT ============================================================================ Opening at sunset delayed due to incoming thunderstorms from the south. Several waves of thunderstorms and periods of heavy rain until ~06:00Z. 08:30Z - Currently it's mostly clear, but dusty. Dust counts (1.0um) have ranged from >6k to 12k. Dust counts have been reporting as high as 35k, but that's due to fog. The humidity readings aren't picking up the humidity, but there is obviously fog around outside. 10:12Z - Called it a night. More clouds are encroaching and there's still a fine fog/mist that rolls through. FPS powered-off. Positioners are home/folded. APOGEE morning cals started. ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: -5.4290 -5.4280 Axial B: -5.0490 -5.0490 Axial C: -5.2780 -5.2770 Trans D: -0.8720 -0.8730 Lateral E: 0.3240 0.3240 Lateral F: 0.5330 0.5330 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: -7.9570 -7.9570 Axial B: -6.1080 -6.1070 Axial C: -6.0780 -6.0780 Trans D: 0.1940 0.2040 GALILS Commanded: 354050 372000 334600 -1500 1800 Actual: 321769 350015 299577 -1500 1800 SETMIR VALUES SecDesOrient: 257.0 14.2 5.9 -72.0 -12.76 SecOrient: 256.96 14.18 5.94 -71.76 -12.61 ---- 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 217 lbs, 24 psi FPS Status ========== CP10 Loop = 7.60 L/min GFA Loop = 2.30 L/min Supply pressure = 42.8 psi Return pressure = 28.5 psi Chiller Status ============== Set temperarature = 16.5 C Flow = 5.0 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 ---- 61283 morning cals: APOGEE data list, mjd=61283, all raw_data: /data/apogee/utr_cdr/61283/apRaw-*.fits archive: /data/apogee/archive/61283/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61283/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61283 31 12:03 57210031 Dark 60 A 13.0 ---------- a-b-c - - 61283 32 12:13 57210032 Dark 60 A 13.0 ---------- a-b-c - - 61283 33 12:24 57210033 Dark 60 A 13.0 ---------- a-b-c - - 61283 34 12:26 57210034 QuarFlat 10 A 13.0 ---------- a-b-c - 104 61283 35 12:28 57210035 QuarFlat 10 A 13.0 ---------- a-b-c - 104 61283 36 12:30 57210036 QuarFlat 10 A 13.0 ---------- a-b-c - 104 61283 37 12:32 57210037 Arc-Thar 12 B 13.5 ---------- a-b-c 3.13 104 61283 38 12:39 57210038 Arc-Une 40 B 13.5 ---------- a-b-c 3.17 95 61283 39 12:41 57210039 Arc-Thar 12 A 13.0 ---------- a-b-c 2.64 101 61283 40 12:49 57210040 Arc-Une 40 A 13.0 ---------- a-b-c 2.69 97 61283 41 12:54 57210041 Dark 30 A 13.0 ---------- a-b-c - - 61283 42 12:59 57210042 InteFlat 30 A 13.0 ---------- a-b-c - - 61283 43 13:05 57210043 InteFlat 30 A 13.0 ---------- a-b-c - - 61283 44 13:10 57210044 InteFlat 30 A 13.0 ---------- a-b-c - - 61283 45 13:16 57210045 Dark 30 A 13.0 ---------- a-b-c - - 61283 46 13:21 57210046 Arc---- 30 A 13.0 ---------- a-b-c - 96 FPI A 61283 47 13:27 57210047 Arc---- 30 B 13.5 ---------- a-b-c - 96 FPI B ------------------------------------------------------------------------------ (observers39) [observer@sdss5-hub: ~]$ list_ap APOGEE data list, mjd=61284, all raw_data: /data/apogee/utr_cdr/61284/apRaw-*.fits archive: /data/apogee/archive/61284/apR-[a,b,c]-*.apz quickred: /data/apogee/quickred/61284/apq-*.fits ------------------------------------------------------------------------------ mjd i UT File/Exp Imtype Nread A/B Dth Design-Cfg Arch Offset %Flux/FPI Comm ------------------------------------------------------------------------------ 61284 1 21:57 57220001 Dark 3 B 13.5 ---------- a-b-c - - 61284 2 21:58 57220002 Dark 3 B 13.5 ---------- a-b-c - - 61284 3 22:09 57220003 Dark 60 B 13.5 ---------- a-b-c - - 61284 4 22:11 57220004 QuarFlat 10 B 13.5 ---------- a-b-c - 0 61284 5 22:13 57220005 Arc-Thar 12 B 13.5 ---------- a-b-c 6.94 0 61284 6 22:21 57220006 Arc-Une 40 B 13.5 ---------- a-b-c -8.96 0 61284 7 22:23 57220007 Arc-Thar 12 A 13.0 ---------- a-b-c -9.66 0 61284 8 22:30 57220008 Arc-Une 40 A 13.0 ---------- a-b-c 2.66 19 61284 9 22:41 57220009 Dark 60 A 13.0 ---------- a-b-c - - 61284 10 22:47 57220010 Arc---- 30 A 13.0 ---------- a-b-c - 96 FPI A 61284 11 22:52 57220011 Arc---- 30 B 13.5 ---------- a-b-c - 97 FPI B 61284 12 23:05 57220012 Dark 60 B 13.5 ---------- a-b-c - - 61284 13 23:07 57220013 QuarFlat 10 B 13.5 ---------- a-b-c - 104 61284 14 23:10 57220014 Arc-Thar 12 B 13.5 ---------- a-b-c 3.12 103 61284 15 23:17 57220015 Arc-Une 40 B 13.5 ---------- a-b-c 3.16 96 61284 16 23:19 57220016 Arc-Thar 12 A 13.0 ---------- a-b-c 2.65 101 61284 17 23:26 57220017 Arc-Une 40 A 13.0 ---------- a-b-c 2.67 97 61284 18 23:37 57220018 Dark 60 A 13.0 ---------- a-b-c - - 61284 19 23:43 57220019 Arc---- 30 A 13.0 ---------- a-b-c - 96 FPI A 61284 20 23:48 57220020 Arc---- 30 B 13.5 ---------- a-b-c - 95 FPI B ------------------------------------------------------------------------------ ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61284 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 21:56 r1-00404059 ----------- ---- bia Clo 0.0 27714 32549 30133 2 21:56 b1-00404059 ----------- ---- bia Clo 0.0 27714 32549 30133 3 22:18 r1-00404060 -999--999 27493 arc Lef 4.1 27714 32549 30133 HART 4 22:18 b1-00404060 -999--999 27493 arc Lef 4.1 27714 32549 30133 HART 5 22:19 b1-00404061 -999--999 27493 arc Rig 4.1 27714 32549 30133 HART 6 22:19 r1-00404061 -999--999 27493 arc Rig 4.1 27714 32549 30133 HART 7 22:20 b1-00404062 -999--999 27493 arc Lef 4.1 26601 31436 29020 HART 8 22:20 r1-00404062 -999--999 27493 arc Lef 4.1 26601 31436 29020 HART 9 22:21 r1-00404063 -999--999 27493 arc Rig 4.1 26601 31436 29020 HART 10 22:21 b1-00404063 -999--999 27493 arc Rig 4.1 26601 31436 29020 HART 11 22:22 r1-00404064 -999--999 27493 arc Out 4.1 26627 31464 29045 12 22:22 b1-00404064 -999--999 27493 arc Out 4.1 26627 31464 29045 13 22:23 b1-00404065 -999--999 27493 fla Out 25.1 26627 31464 29045 14 22:23 r1-00404065 -999--999 27493 fla Out 25.1 26627 31464 29045 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 22:20:00 10.5 -1649 1.8 -1113 -1.7 22:21:40 10.5 -659 -2.2 24 -2.1 ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61284 Fill night time in Hours below *=*=*= Total bright time : 9.3 *=*=*= Bright time, queued observations : 0 *=*=*= Bright time, commissioning/engineering: 0 *=*=*= Bright time lost to weather : 9.3 *=*=*= Bright time lost to technical issues : 0 *=*=*= Total dark time : 0.6 *=*=*= Dark time, queued observations : 0 *=*=*= Dark time, commissioning/engineering : 0 *=*=*= Dark time lost to weather : 0.6 *=*=*= Dark time lost to technical issues : 0