APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Friday April 10, 2026 (SJD 61141) ---- Observing Team ---- Dan Oravetz ---- Observing Plan ---- Fri 10 Apr 2026 61141 dark until 09:16 (6.6 h), then bright (3.3 h, w/ 1.1 h for 8 deg design) ---- Observing Summary ---- The night was lost to weather (rain, clouds, radar returns, and high humidity), but at least we received some good moisture from tonight's rain on site. ---- Observing Log ---- ============================================================================ AFTERNOON CHECKOUT ============================================================================ All systems alive and responsive. Restarted cherno. Disk space: Filesystem Size Used Avail Use% Mounted on /dev/sdb1 2.0T 497G 1.6T 25% /home /dev/sdd1 22T 15T 6.8T 68% /data FPS powered on. Positioners are home/folded: 02:31:55 APO.doravetz_3 9 jaeger i folded=T 02:31:55 APO.doravetz_3 9 jaeger : text="All positioners are folded." 02:32:08 APO.doravetz_3 10 jaeger : permanently_disabled=647,986; manually_disabled=572,973,1039 Loaded a manual folded configuration: 02:32:27 CmdStarted: APO.doravetz_3 11 jaeger configuration load --from-positions 02:32:29 APO.doravetz_3 11 jaeger d text="Resetting cherno offsets." 02:32:29 APO.doravetz_3 11 jaeger d text="Focal plane scale: 1.0." 02:32:29 APO.doravetz_3 11 jaeger d configuration_loaded=26072,-999,-999,-999.0,-999.0,0,-999.0,-999.0,/home/sdss5/software/sdsscore/main/apo/summary_files/026XXX/0260XX/confSummary-26072.par,F 02:32:34 APO.doravetz_3 11 jaeger i configuration_snapshot=/data/logs/jaeger/configuration_snapshots/61141/configuration_snapshot_61141_26072.pdf 02:32:34 APO.doravetz_3 11 jaeger d design_preloaded=-999 02:32:34 APO.doravetz_3 11 jaeger : text="Configuration 26072 loaded." 02:32:34 CmdDone: APO.doravetz_3 11 jaeger configuration load --from-positions Took a '--no-apply' FVC image: 02:33:29 FVC Loop fvc_rms= 34.49 fvc_deltarms= 31.71 fvc_filename=/data/fcam/61141/fimg-fvc1n-0001.fits fvc_perc_90= 48.10 fvc_percent_reached= 2.60 fvc iterations= 1 Scattered-light check: 02:35:35 CmdStarted: APO.doravetz_3 13 fliswarm talk -n fvc expose 50 No evidence of light artifacts. GFA biases, darks, and flat: 02:36:52 CmdStarted: APO.doravetz_3 14 fliswarm talk -c gfa expose --bias --count 10 02:37:51 CmdStarted: APO.doravetz_3 15 fliswarm talk -c gfa expose --dark --count 5 5 02:38:59 CmdStarted: APO.doravetz_3 17 fliswarm talk -c gfa expose --flat 1 Exercised positioners: 02:41:24 CmdStarted: APO.doravetz_3 19 jaeger configuration random --danger 02:43:07 APO.doravetz_3 19 jaeger d trajectory_dump_file=/data/logs/jaeger/trajectories/61141/trajectory-61141-0001.json 02:43:08 CmdDone: APO.doravetz_3 19 jaeger configuration random --danger 02:43:12 .jaeger 0 jaeger i snapshot=/data/logs/jaeger/snapshots/61141/fps_snapshot_61141_0001.pdf 02:43:43 CmdStarted: APO.doravetz_3 20 jaeger configuration reverse BOSS hartmanns, arc, flat: 02:47:30 BOSS expNum=399870, expTime= 4.0s 02:48:10 BOSS expNum=399871, expTime= 4.0s 02:48:51 sp1.motor.move= 18, 18, 18 02:48:51 Hartmann collimate output sp1: offset: r= -989 (In Focus); b= -3.2 (In Focus) sp1: pred. move: spAverageMove= 19 sp1: pred. resid: r= -1008, b= -3.2, txt= OK, spTemp = 6.5 02:49:09 BOSS expNum=399872, expTime= 4.0s 02:50:47 BOSS expNum=399873, expTime= 25.0s Ventilation delayed due to rain. ============================================================================ NIGHT ============================================================================ Did not open at sunset due to rain and thunderstorms. It looks unlikely we will be able to open tonight. 05:42Z - Still clouded-out with radar returns. Not actively raining now, however. 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: 0.0050 0.0050 Axial B: -0.0280 -0.0270 Axial C: -0.1760 -0.1760 Trans D: -0.0170 -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: -7.6410 -7.6400 Axial B: -7.5370 -7.5330 Axial C: -7.5290 -7.5280 Trans D: 0.2040 0.1940 GALILS Commanded: 2246250 2245000 2239050 -1750 -1700 Actual: 2215572 2225354 2199187 -1750 -1700 SETMIR VALUES SecDesOrient: 1757.0 7.9 1.5 -39.3 35.42 SecOrient: 1756.82 7.92 1.47 -39.33 35.17 ---- 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 274 lbs, 20 psi FPS Status ========== CP10 Loop = 7.47 L/min GFA Loop = 2.40 L/min Supply pressure = 44.7 psi Return pressure = 29.9 psi Chiller Status ============== Set temperarature = 9.5 C Flow = 4.9 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 : 0.6.0 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 available apogeecal : not available apogeeql : v1_7_0dev boson : 0.6.0 sdss-obstools : 3.9.3 TPM : 1.2-31-gd7eb MCP : 2.3.1 PLC : V35 Fiducials : v1_153 idlspec2d : v6_2_1 Kronos : 2.1.0a roboscheduler : 2.1.0 ---- APOGEE Data Summary ---- 61140 morning cals: num field design config exptype dithpix nread relflux okay dx dy sigx sigy fpi1 fpi2 -------- ------ ------ ------ ------------ ------- ----- ------- ----- ------- ------- ------ ------ ---- ---- 55780073 104197 756030 26071 DARK 13.5 60 -7 True -- -- -- -- -- -- 55780074 104197 756030 26071 DARK 13.5 60 -5 True -- -- -- -- -- -- 55780075 104197 756030 26071 DARK 13.5 60 3 True -- -- -- -- -- -- 55780076 104197 756030 26071 QUARTZFLAT 13.5 10 113 True -- 0.74 -- 0.86 -- -- 55780077 104197 756030 26071 QUARTZFLAT 13.5 10 113 True -- 0.76 -- 0.84 -- -- 55780078 104197 756030 26071 QUARTZFLAT 13.5 10 113 True -- 0.75 -- 0.85 -- -- 55780079 104197 756030 26071 ARCLAMP-THAR 13.5 12 1 True -4.00 -5.10 1.25 0.91 -- -- 55780080 104197 756030 26071 ARCLAMP-UNE 13.5 40 3 True -9.57 -5.06 0.89 0.79 -- -- 55780081 104197 756030 26071 ARCLAMP-THAR 13.0 12 1 True -4.45 -4.93 1.13 0.87 -- -- 55780082 104197 756030 26071 ARCLAMP-UNE 13.0 40 2 True -10.45 -4.99 0.39 0.87 -- -- 55780083 104197 756030 26071 DARK 13.0 30 0 False -- -- -- -- -- -- 55780084 104197 756030 26071 INTERNALFLAT 13.0 30 95 True -- -- -- -- -- -- 55780085 104197 756030 26071 INTERNALFLAT 13.0 30 96 True -- -- -- -- -- -- 55780086 104197 756030 26071 INTERNALFLAT 13.0 30 96 True -- -- -- -- -- -- 55780087 104197 756030 26071 DARK 13.0 30 243 True -- -- -- -- -- -- 55780088 104197 756030 26071 FPI 13.0 30 242 True -1.25 -5.03 1.11 0.90 -- -- 55780089 104197 756030 26071 FPI 13.5 30 243 True -0.78 -5.09 1.10 0.89 -- -- num exptype nread mtp1 mtp2 mtp3 mtp4 mtp5 mtp6 mtp7 mtp8 mtp9 mtp10 -------- ---------- ----- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----- 55780076 QUARTZFLAT 10 74 79 89 100 99 94 95 98 98 90 55780077 QUARTZFLAT 10 77 81 90 101 100 94 95 98 99 92 55780078 QUARTZFLAT 10 77 82 91 101 101 95 96 99 99 92 (observers39) [observer@sdss5-hub: ~]$ check_ap 61141 num field design config exptype dithpix nread relflux okay dx dy sigx sigy fpi1 fpi2 -------- ------ ------ ------ ------------ ------- ----- ------- ---- ------- ------- ------ ------ ---- ---- 55790001 104197 756030 26071 DARK 13.5 3 67 True -- -- -- -- -- -- 55790002 104197 756030 26071 DARK 13.5 60 -8 True -- -- -- -- -- -- 55790003 104197 756030 26071 QUARTZFLAT 13.5 10 110 True -- 0.65 -- 0.86 -- -- 55790004 104197 756030 26071 ARCLAMP-THAR 13.5 12 1 True -3.97 1.38 1.06 0.95 -- -- 55790005 104197 756030 26071 ARCLAMP-UNE 13.5 40 3 True -9.40 -5.12 1.25 0.97 -- -- 55790006 104197 756030 26071 ARCLAMP-THAR 13.0 12 1 True -4.56 -5.01 1.03 0.89 -- -- 55790007 104197 756030 26071 ARCLAMP-UNE 13.0 40 2 True -10.39 -5.11 0.36 0.79 -- -- 55790008 104197 756030 26071 DARK 13.0 60 0 True -- -- -- -- -- -- 55790009 104197 756030 26071 FPI 13.0 30 240 True 11.08 -5.17 1.12 0.90 -- -- 55790010 104197 756030 26071 FPI 13.5 30 236 True 11.57 -5.11 1.09 0.86 -- -- num exptype nread mtp1 mtp2 mtp3 mtp4 mtp5 mtp6 mtp7 mtp8 mtp9 mtp10 -------- ---------- ----- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----- 55790003 QUARTZFLAT 10 74 79 90 101 101 95 96 99 100 91 ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61141 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 21:52 b1-00399867 ----------- ---- bia Clo 0.0 406 459 476 2 21:52 r1-00399867 ----------- ---- bia Clo 0.0 406 459 476 3 02:45 r1-00399868 -999--999 26072 arc Lef 4.1 406 459 476 HART 4 02:45 b1-00399868 -999--999 26072 arc Lef 4.1 406 459 476 HART 5 02:46 r1-00399869 -999--999 26072 arc Rig 4.1 406 459 476 HART 6 02:46 b1-00399869 -999--999 26072 arc Rig 4.1 406 459 476 HART 7 02:47 r1-00399870 -999--999 26072 arc Lef 4.1 -61 -13 9 HART 8 02:47 b1-00399870 -999--999 26072 arc Lef 4.1 -61 -13 9 HART 9 02:48 b1-00399871 -999--999 26072 arc Rig 4.1 -61 -13 9 HART 10 02:48 r1-00399871 -999--999 26072 arc Rig 4.1 -61 -13 9 HART 11 02:49 b1-00399872 -999--999 26072 arc Out 4.1 -43 5 27 12 02:49 r1-00399872 -999--999 26072 arc Out 4.1 -43 5 27 13 02:50 r1-00399873 -999--999 26072 fla Out 25.1 -43 5 27 14 02:50 b1-00399873 -999--999 26072 fla Out 25.1 -43 5 27 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 02:47:00 6.5 -1319 -1.2 -467 -2.7 02:48:40 6.5 -989 -3.2 19 -3.2 ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61141 Fill night time in Hours below *=*=*= Total bright time : 6.6 *=*=*= Bright time, queued observations : 0 *=*=*= Bright time, commissioning/engineering: 0 *=*=*= Bright time lost to weather : 6.6 *=*=*= Bright time lost to technical issues : 0 *=*=*= Total dark time : 3.3 *=*=*= Dark time, queued observations : 0 *=*=*= Dark time, commissioning/engineering : 0 *=*=*= Dark time lost to weather : 3.3 *=*=*= Dark time lost to technical issues : 0