APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Saturday December 27, 2025 (SJD 61037) ---- Observing Team ---- Dan Oravetz ---- Observing Plan ---- Sat 27 Dec 2025 61037 bright until 07:40 (6.6 h, w/ 0.3 h for 12 deg design), then dark (5.2 h) ---- Observing Summary ---- The night was lost to weather tonight -- lots of low clouds, intermittent radar returns, persistent high humidity, and wind gusts approaching the closure limit. Notes ===== (1) The FPI exposures (54750009 & 10) from the evening cals did not have any flux. After determining the TIMS client had died, the client was restarted and a second set of evening cals taken. (2) I did test slews with the MCP slewing between ALT=30 and ALT=5 in order to try and reproduce the aborted slew experienced yesterday during closing, but no misbehavior was observed tonight. ---- Observing Log ---- ============================================================================ AFTERNOON CHECKOUT ============================================================================ All systems alive and responsive. Disk space: Filesystem Size Used Avail Use% Mounted on /dev/sdb1 2.0T 484G 1.6T 24% /home /dev/sdd1 22T 16T 5.0T 77% /data FPS powered on. Positioners are home/folded: 00:33:18 APO.doravetz_2 8 jaeger i folded=T 00:33:18 APO.doravetz_2 8 jaeger : text="All positioners are folded." 00:33:40 APO.doravetz_2 9 keys_jaeger i permanently_disabled=647,986; manually_disabled=973 Loaded a manual folded configuration: 00:34:25 CmdStarted: APO.doravetz_2 10 jaeger configuration load --from-positions 00:34:28 APO.doravetz_2 10 jaeger d text="Resetting cherno offsets." 00:34:28 .jaeger 0 jaeger d alive_at=1766882068.1647491 00:34:28 APO.doravetz_2 10 jaeger d text="Focal plane scale: 1.0." 00:34:28 APO.doravetz_2 10 jaeger d configuration_loaded=23741,-999,-999,-999.0,-999.0,0,-999.0,-999.0,/home/sdss5/software/sdsscore/main/apo/summary_files/023XXX/0237XX/confSummary-23741.par,F 00:34:33 APO.doravetz_2 10 jaeger i configuration_snapshot=/data/logs/jaeger/configuration_snapshots/61037/configuration_snapshot_61037_23741.pdf 00:34:33 APO.doravetz_2 10 jaeger d design_preloaded=-999 00:34:33 APO.doravetz_2 10 jaeger : text="Configuration 23741 loaded." 00:34:33 CmdDone: APO.doravetz_2 10 jaeger configuration load --from-positions Took a '--no-apply' FVC image: FVC loop results: fvc_rms= 35.68 fvc_deltarms= 14.24 fvc_filename=/data/fcam/61037/fimg-fvc1n-0001.fits fvc_perc_90= 51.30 fvc_percent_reached= 1.40 fvc iterations= 1 Scattered-light check: 00:36:35 CmdStarted: APO.doravetz_2 15 fliswarm talk -n fvc expose 50 No evidence of light artifacts. GFA biases, darks, and flat: 00:39:49 CmdStarted: APO.doravetz_2 16 fliswarm talk -c gfa expose --bias --count 10 00:40:47 CmdStarted: APO.doravetz_2 17 fliswarm talk -c gfa expose --dark --count 5 5 00:41:53 CmdStarted: APO.doravetz_2 18 fliswarm talk -c gfa expose --flat 1 Exercised positioners: 00:42:10 CmdStarted: APO.doravetz_2 19 jaeger configuration random --danger 00:43:38 APO.doravetz_2 19 jaeger d trajectory_dump_file=/data/logs/jaeger/trajectories/61037/trajectory-61037-0001.json 00:43:39 CmdDone: APO.doravetz_2 19 jaeger configuration random --danger 00:43:43 .jaeger 0 jaeger i snapshot=/data/logs/jaeger/snapshots/61037/fps_snapshot_61037_0001.pdf 00:44:11 CmdStarted: APO.doravetz_2 20 jaeger configuration reverse Ventilation delayed due to threatening clouds (rained earlier) and high humidity. Determined that the APOGEEFPI TIMS client had died, hence why the shutter didn't open and no flux seen in the evening-cal FPI exposures. Restarted TIMS client and took another set of evening cals. ============================================================================ NIGHT ============================================================================ Did not open at sunset due to clouds, virga, and radar returns. Looks to be a stream of clouds incoming for the next few hours at least. 08:23Z - Still lots of low clouds (almost fog-like waves), high humidity, and associated radar returns. 12:19Z - 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: 0.1010 0.1030 Axial B: -0.0290 -0.0250 Axial C: -0.1770 -0.1740 Trans D: -0.0210 -0.0300 Lateral E: 0.3400 0.3400 Lateral F: 0.5475 0.5470 GALILS Commanded: 8450 -1050 8800 22100 -2000 -1700 Actual: 8450 -1050 8800 22100 -2000 -1700 SETMIR VALUES PrimDesOrient: 1.06 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 -7.6390 Axial B: -7.5390 -7.5320 Axial C: -7.5280 -7.5280 Trans D: 0.2030 0.1940 GALILS Commanded: 2251400 2252000 2243550 -1800 -1700 Actual: 2215540 2225518 2199213 -1800 -1700 SETMIR VALUES SecDesOrient: 1757.0 7.9 1.5 -39.3 35.42 SecOrient: 1756.89 7.93 1.53 -39.87 35.74 ---- 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 LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 215 lbs, 25 psi FPS Status ========== CP10 Loop = 7.42 L/min GFA Loop = 2.29 L/min Supply pressure = 45.1 psi Return pressure = 29.5 psi Chiller Status ============== Set temperarature = 5.4 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_152 -mcp.altFiduc : v1_152 -mcp.rotFiduc : v1_152 tcc : 1.4.0 apogee : not available apogeecal : not available apogeeql : v1_7_0dev STUIAdditions : 3.1.18 boson : 0.5.1 sdss-obstools : 3.9.3 TPM : 1.2-31-gd7eb MCP : 2.3.1 PLC : V35 Fiducials : v1_152 idlspec2d : v6_2_1 Kronos : 2.1.0a roboscheduler : 2.1.0 ---- APOGEE Data Summary ---- 61036 morning cals: num field design config exptype dithpix nread relflux okay dx dy sigx sigy fpi1 fpi2 -------- ------ ------ ------ ------------ ------- ----- ------- ----- ------- ------- ------ ------ ---- ---- 54740045 102784 754846 23740 DARK 13.5 60 15 True -- -- -- -- -- -- 54740046 102784 754846 23740 DARK 13.5 60 7 True -- -- -- -- -- -- 54740047 102784 754846 23740 DARK 13.5 60 -3 True -- -- -- -- -- -- 54740048 102784 754846 23740 QUARTZFLAT 13.5 10 101 True -- 0.71 -- 0.86 -- -- 54740049 102784 754846 23740 QUARTZFLAT 13.5 10 100 True -- 0.71 -- 0.84 -- -- 54740050 102784 754846 23740 QUARTZFLAT 13.5 10 101 True -- 0.72 -- 0.85 -- -- 54740051 102784 754846 23740 ARCLAMP-THAR 13.5 12 86 True 23.31 1.34 1.04 0.88 -- -- 54740052 102784 754846 23740 ARCLAMP-UNE 13.5 40 4 True -10.91 -5.13 0.88 0.84 -- -- 54740053 102784 754846 23740 ARCLAMP-THAR 13.0 12 89 True 22.83 1.36 1.06 0.87 -- -- 54740054 102784 754846 23740 ARCLAMP-UNE 13.0 40 137 True 22.61 -5.08 1.05 0.86 -- -- 54740055 102784 754846 23740 DARK 13.0 30 17 False -- -- -- -- -- -- 54740056 102784 754846 23740 INTERNALFLAT 13.0 30 99 True -- -- -- -- -- -- 54740057 102784 754846 23740 INTERNALFLAT 13.0 30 100 True -- -- -- -- -- -- 54740058 102784 754846 23740 INTERNALFLAT 13.0 30 100 True -- -- -- -- -- -- 54740059 102784 754846 23740 DARK 13.0 30 243 True -- -- -- -- -- -- 54740060 102784 754846 23740 FPI 13.0 30 254 True 9.82 -5.06 1.12 0.89 -- -- 54740061 102784 754846 23740 FPI 13.5 30 250 True -2.03 -5.10 1.12 0.90 -- -- num exptype nread mtp1 mtp2 mtp3 mtp4 mtp5 mtp6 mtp7 mtp8 mtp9 mtp10 -------- ---------- ----- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----- 54740048 QUARTZFLAT 10 65 73 79 88 88 83 84 87 87 80 54740049 QUARTZFLAT 10 68 75 79 89 88 83 85 87 87 81 54740050 QUARTZFLAT 10 68 75 80 89 89 83 85 87 87 81 (observers39) [observer@sdss5-hub: ~]$ check_ap 61037 num field design config exptype dithpix nread relflux okay dx dy sigx sigy fpi1 fpi2 -------- ------ ------ ------ ------------ ------- ----- ------- ----- ------- ------- ------ ------ ---- ---- 54750001 102784 754846 23740 DARK 13.5 3 33 True -- -- -- -- -- -- 54750002 102784 754846 23740 DARK 13.5 60 -42 True -- -- -- -- -- -- 54750003 102784 754846 23740 QUARTZFLAT 13.5 10 99 True -- 0.63 -- 0.86 -- -- 54750004 102784 754846 23740 ARCLAMP-THAR 13.5 12 91 True 23.34 1.26 1.06 0.86 -- -- 54750005 102784 754846 23740 ARCLAMP-UNE 13.5 40 3 True -10.85 -5.24 0.87 0.98 -- -- 54750006 102784 754846 23740 ARCLAMP-THAR 13.0 12 95 True 22.85 1.23 1.07 0.88 -- -- 54750007 102784 754846 23740 ARCLAMP-UNE 13.0 40 134 True 22.61 -5.16 1.02 0.91 -- -- 54750008 102784 754846 23740 DARK 13.0 60 -2 True -- -- -- -- -- -- 54750009 102784 754846 23740 FPI 13.0 30 0 False -9.49 2.37 0.51 0.49 -- -- 54750010 102784 754846 23740 FPI 13.5 30 0 False 10.20 -- 0.50 -- -- -- 54750011 -999 -999 23741 DARK 13.5 60 -22 True -- -- -- -- -- -- 54750012 -999 -999 23741 QUARTZFLAT 13.5 10 99 True -- 0.65 -- 0.85 -- -- 54750013 -999 -999 23741 ARCLAMP-THAR 13.5 12 98 True 23.46 -5.30 1.06 0.80 -- -- 54750014 -999 -999 23741 ARCLAMP-UNE 13.5 40 3 True -10.85 -5.25 0.84 0.80 -- -- 54750015 -999 -999 23741 ARCLAMP-THAR 13.0 12 95 True 22.84 1.26 1.08 0.95 -- -- 54750016 -999 -999 23741 ARCLAMP-UNE 13.0 40 138 True 22.63 -5.14 1.03 0.93 -- -- 54750017 -999 -999 23741 DARK 13.0 60 15 True -- -- -- -- -- -- 54750018 -999 -999 23741 FPI 13.0 30 254 True 9.85 -5.15 1.11 0.88 -- -- 54750019 -999 -999 23741 FPI 13.5 30 251 True -2.00 -5.19 1.11 0.89 -- -- num exptype nread mtp1 mtp2 mtp3 mtp4 mtp5 mtp6 mtp7 mtp8 mtp9 mtp10 -------- ---------- ----- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----- 54750003 QUARTZFLAT 10 65 72 79 89 89 84 85 88 88 80 54750012 QUARTZFLAT 10 66 73 79 89 89 84 85 88 88 80 ---- BOSS Data Summary ---- Reading FITS from /data/spectro//61037 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - n Time Filename design-field cfg flav shu Exp colA colB colC Hrt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 22:42 b1-00393605 ----------- ---- bia Clo 0.0 -847 -834 -830 2 22:42 r1-00393605 ----------- ---- bia Clo 0.0 -847 -834 -830 3 01:06 b1-00393606 -999--999 23741 arc Lef 4.1 -847 -834 -830 HART 4 01:06 r1-00393606 -999--999 23741 arc Lef 4.1 -847 -834 -830 HART 5 01:07 r1-00393607 -999--999 23741 arc Rig 4.1 -847 -834 -830 HART 6 01:07 b1-00393607 -999--999 23741 arc Rig 4.1 -847 -834 -830 HART 7 01:08 b1-00393608 -999--999 23741 arc Lef 4.1 -2611 -2597 -2596 HART 8 01:08 r1-00393608 -999--999 23741 arc Lef 4.1 -2611 -2597 -2596 HART 9 01:08 b1-00393609 -999--999 23741 arc Rig 4.1 -2611 -2597 -2596 HART 10 01:08 r1-00393609 -999--999 23741 arc Rig 4.1 -2611 -2597 -2596 HART 11 01:09 b1-00393610 -999--999 23741 arc Out 4.1 -2427 -2413 -2409 12 01:09 r1-00393610 -999--999 23741 arc Out 4.1 -2427 -2413 -2409 13 01:11 b1-00393611 -999--999 23741 fla Out 25.1 -2427 -2413 -2409 14 01:11 r1-00393611 -999--999 23741 fla Out 25.1 -2427 -2413 -2409 ---- BOSS Spectrographs Collimation ---- Time TSP1 R1 B1 Move1 B1Resid ============================================= 01:07:40 4.2 -2308 3.8 -1764 -1.7 01:09:20 4.2 -659 -3.2 184 -2.6 ---- Weather Log ---- Wind 1 um DIMM IRSC Time Temp C Dewp C MPH Dir Dust fwhm mean sigma 19:00 6.3 2.6 15.3 51.2 dpDep 19:15 6.9 2.7 18.9 31.3 dpDep 19:30 6.4 2.8 16.8 31.8 dpDep 19:45 5.9 2.8 16.0 45.5 dpDep 20:00 5.9 3.0 19.1 50.9 dpDep 20:15 5.9 3.5 20.9 55.3 dpDep 20:30 5.5 3.4 18.4 46.3 dpDep 20:45 4.5 3.0 19.9 57.0 dpDep 21:00 4.0 3.8 21.7 59.0 dpDep 21:15 4.1 4.0 22.0 53.2 dpDep 21:30 4.2 4.8 23.1 61.6 dpDep 21:45 4.2 4.5 19.9 51.5 dpDep 22:00 3.7 4.1 15.4 61.1 dpDep 22:15 3.4 3.6 12.0 64.8 dpDep 22:30 3.0 3.3 17.6 63.6 dpDep 22:45 3.7 3.8 22.5 63.8 dpDep 23:00 3.4 3.4 21.5 66.3 dpDep 23:15 2.8 2.4 18.3 70.0 dpDep 23:30 2.7 2.9 19.4 52.8 dpDep 23:45 2.5 2.4 18.3 64.8 dpDep 00:00 2.5 1.7 20.0 63.8 dpDep 00:15 2.4 -2.6 18.9 66.3 dpDep 00:30 2.5 0.2 16.8 62.7 dpDep 00:45 2.7 0.2 16.6 64.1 dpDep 01:00 2.8 0.2 16.6 66.6 dpDep 01:15 2.6 0.1 16.3 68.0 dpDep 01:30 2.5 0.2 11.7 65.5 dpDep 01:45 2.8 0.2 13.0 80.1 dpDep 02:00 3.2 0.0 20.1 69.5 dpDep 02:15 2.9 0.1 17.4 78.8 dpDep 02:30 2.6 0.1 18.3 86.4 dpDep 02:45 2.7 0.1 17.4 78.9 dpDep 03:00 2.6 0.1 16.3 75.1 dpDep 03:15 2.3 0.2 13.7 90.6 dpDep 03:30 2.2 0.2 17.1 90.7 dpDep 03:45 2.8 0.2 11.2 70.3 dpDep 04:00 2.5 0.2 15.9 82.1 dpDep 04:15 2.6 0.1 16.2 63.6 dpDep 04:30 2.8 0.2 18.0 70.5 dpDep 04:45 2.8 -0.1 14.6 62.8 dpDep 05:00 2.8 0.1 20.4 60.9 dpDep 05:15 2.7 -0.4 19.4 48.8 dpDep 05:30 2.8 0.2 16.3 55.5 dpDep 05:45 2.8 0.2 19.2 64.6 dpDep 06:00 2.9 0.1 24.9 65.5 dpDep 06:15 2.7 0.1 18.5 61.6 dpDep 06:30 2.7 0.1 16.9 62.4 dpDep 06:45 2.8 0.1 18.0 72.1 dpDep 07:00 2.8 0.1 19.5 66.5 dpDep 07:15 2.9 0.0 22.7 61.2 dpDep 07:30 2.9 0.2 24.5 63.6 dpDep 07:45 2.9 -0.3 21.2 50.7 dpDep 08:00 2.9 0.1 17.8 64.0 dpDep 08:15 2.7 0.1 15.8 65.6 dpDep ---- Time Tracking ---- *=*=*= Observatory: APO *=*=*= MJD: 61037 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 : 5.2 *=*=*= Dark time, queued observations : 0 *=*=*= Dark time, commissioning/engineering : 0 *=*=*= Dark time lost to weather : 5.2 *=*=*= Dark time lost to technical issues : 0