APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Sunday March 3, 2002 (MJD 52337) ---=== OBSERVING TEAM ===--- I'm too cold to think of anything witty. Here are the personnel: Steph Snedden Pete Newman Mike Harvanek - swing French Leger - moral support & troubleshooting Jon Brinkmann - moral support Connie Rockosi - by phone Jurek Krzesinski - moral support ---=== OBSERVING PLAN ===--- Science and keeping warm. ---=== OBSERVING SUMMARY ===--- More cold weather and more trouble with the spectrograph shutters. More trouble from U3. One short imaging drift in poor seeing, but possibly useful for UCAC coverage. One plate declared done with uncertain exposure times, one other plate almost done. We left endNight running since it will take a long time due to a very long bias. We have asked the day staff to check and see that it finished. ---=== OBSERVING LOG ===--- This afternoon/evening the spectro focus was redone. Large focus changes were needed. At this point we really do not know if low temperatures caused these large changes, or if there was a mechanical failure that caused the shift. We suspect the latter. The spectrographs are now in focus with the outside air temperature at -9C and the truss temp at -6C. Here are the particulars of the focus: ---------- Done calculating pixel shift maps... sp1 red l-r = 1.278 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of -11694 steps for sp1 red Issue: sp1; mechPiston -11694 Calculating pixel shift maps now... Done calculating pixel shift maps... sp2 red l-r = 0.959 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of -8775 steps for sp2 red Issue: sp2; mechPiston -8775 Calculating pixel shift maps now... Done calculating pixel shift maps... sp1 blue l-r = -1.186 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of 42 steps for sp1 blue If red is in focus then you need to rotate blue camera ring by 42 degrees Calculating pixel shift maps now... Done calculating pixel shift maps... sp2 blue l-r = -1.360 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of 49 steps for sp2 blue If red is in focus then you need to rotate blue camera ring by 49 degrees Calculating pixel shift maps now... Done calculating pixel shift maps... sp1 red l-r = 0.259 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of -2370 steps for sp1 red Issue: sp1; mechPiston -2370 Calculating pixel shift maps now... Done calculating pixel shift maps... sp2 red l-r = 0.243 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of -2223 steps for sp2 red Issue: sp2; mechPiston -2223 Calculating pixel shift maps now... Done calculating pixel shift maps... sp1 blue l-r = -0.361 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of 13 steps for sp1 blue If red is in focus then you need to rotate blue camera ring by 13 degrees Calculating pixel shift maps now... Done calculating pixel shift maps... sp2 blue l-r = -0.604 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of 22 steps for sp2 blue If red is in focus then you need to rotate blue camera ring by 22 degrees Calculating pixel shift maps now... Done calculating pixel shift maps... sp1 red l-r = 0.058 pixels, tolerance = 0.15 pixels, focused Calculating pixel shift maps now... Done calculating pixel shift maps... sp2 red l-r = 0.084 pixels, tolerance = 0.15 pixels, focused Calculating pixel shift maps now... Done calculating pixel shift maps... sp1 blue l-r = -0.180 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of 6 steps for sp1 blue If red is in focus then you need to rotate blue camera ring by 6 degrees Calculating pixel shift maps now... Done calculating pixel shift maps... sp2 blue l-r = -0.401 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of 14 steps for sp2 blue If red is in focus then you need to rotate blue camera ring by 14 degrees ---------- While working on the spectrographs we ran a bias in the doghouse with tbars first in the maintenance, then later in the operate position. U3 stayed in spec. We then set the tbars back to maintenance position. 0318Z After verifying that arcs and flats reduced in spec in SoS, we decided to use the remaining dark photometric time to get a short imaging scan on 13. We mounted the imager and did a bias on the telescope. U3 still stayed in spec. whew. Good news. 0337Z Started imaging stripe 13 N. 0347Z frame 21 lambda -62, start of science, and focus loop converged. 0438Z ended drift at frame 106 lambda =-49. Seeing was bad throughout, but we hope this will be useful for UCAC coverage. 0501Z Started spectroscopy on cartridge 9, plate 574. We needed to use an FK5 to find the field. We also ran another bias in the doghouse at this time. U3's bias level started climbing as soon as the drift started. See the problems section. It remained bad for the rest of the night. We got two good exposures on plate 574, then the shutters started acting up. The 3rd exposure (13631) is actually okay although the calculations of sky values are wrong in SoS, because it did not get the correct exposure time. The actual exposure time for this frame is 42 minutes, 5 (approx) minutes of which were gathering just sky. This plate was not declared done. PLEASE GIVE US FEEDBACK IF THESE EXPOSURES CAN BE USED. We woke French and he went down to monitor the shutter motion. Shutters on both spectrographs were moving slowly, and the Hartmann shutters on sp1 were slow on opening. Both Hartmann screens closed at apparent normal speeds. 0729Z Cartridge 5, plate 778 ---------------------------- Needed an FK5 to find the field. We saturated the CCDs while looking at the shutters, so the first flat is bad. Biases were done to flush the chips. We tried a shutter work-around with this plate. We made sure the shutters were open with mechSend os and mechSend ob for both spectrographs before we started our science exposure. The exposure start and stop times follow: Exposure 13638: 2002-03-04T07:56:50Z Exposure started. 2002-03-04T08:00:10Z paused exposure 2002-03-04T08:00:57Z resumed exposure 2002-03-04T08:22:37Z readout began If the shutters or Hartmann doors are slow, the mechanicals timer times out, and there is no exposure countdown. So, we have uncertain exposure times. None the less, we went ahead and took exposures in hopes that there will be no problems reducing them. We then tried starting an exposure and checking the countdown via mechSend s. If one or both spectrographs was not counting down due to a time-out, we issued a pauseStare, then a resumeStare after verifying the shutters were open. This seems to be the best workaround. There is uncertainty caused by the two cameras having different values for the remaining exposure time, since the shutters may work on one, but not the other. Overall, we estimate the exposure time uncertainty to be 1 minute. SoS results seemed reasonable for these exposures. We were able to complete this plate in four exposures. We were even able to get a smear done on it. 1019Z Cartridge 4, plate 788 ----------------------------- All the stars were in the fibers on going to the field, using the offsets from the previous plate. On the first exposure, the shutters were slow again and we had to use the "pauseStare workaround" mentioned previously. We made 5 exposures, but cannot quite declare it done, thanks to poor seeing and sky brightness. 1318Z We closed. The temperature climbed a few degrees in the hour before twilight. We are hopeful for a warmer night tomorrow, with fewer problems. EndNight would not let us run it without flushing the queue of a very large bias drift. Since we asked not to archive that run, we consider this a bug. A PR was filed. Because the flushing will take a long time, we are leaving endNight before it finishes. The day staff should check to see that it finished. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 3009 0031Z 0253Z 100 O -121.49 -85.69 253 ignore 3009 0031Z 0321Z 100 O -121.49 -60.43 239 bias 3010 0322Z 0336Z 100 O -78.59 -74.89 39 bias 3011 was the science run, but did not get entered here...? See the log for time, frame & lambda details ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot --------------------------------------------------------------- 3011 9 4 4 -10.400 0.039 -14.600 0.058 0.01704 3011 24 4 134 -4.900 0.173 0.100 0.203 -0.01138 3011 58 4 7 -6.400 0.248 1.200 0.100 -0.01112 ---=== LTMATCH RESULTS ===--- Run Field nFields nGood rowMean rowSig colMean colSig rot --------------------------------------------------------------- 3011 21 1 3 -0.754 0.790 4.032 4.042 -0.01356 3011 21 1 4 -1.128 1.145 4.049 4.064 -0.01361 3011 21 1 5 -1.431 1.441 4.030 4.040 -0.01355 3011 34 1 8 0.631 0.676 4.758 4.759 -0.01600 3011 34 1 12 0.504 0.583 4.841 4.845 -0.01628 3011 34 1 8 0.513 0.594 4.802 4.806 -0.01615 3011 34 1 20 -0.476 0.584 4.738 4.746 -0.01593 3011 34 1 20 -0.247 0.337 5.170 5.174 -0.01738 ---=== SPECTROSCOPY DATA SUMMARY ===--- UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 13612, plate -9999 ------- 00:42 13614 10.0 flat ----- sequence 13612, plate 778 ------- 01:07 13615 3.0 arc 01:09 13616 3.0 arc 01:20 13617 3.0 arc 01:22 13618 3.0 arc 01:30 13619 3.0 arc 01:33 13620 3.0 arc 01:52 13621 3.0 arc 01:54 13622 3.0 arc ----- sequence 13612, plate 9999 ------- 02:00 13623 10.0 flat ----- sequence 13612, plate 778 ------- 02:03 13624 10.0 flat 02:08 13625 2.0 arc ----- sequence 13626, plate -9999 ------- 04:42 13626 0.0 bias ----- sequence 13627, plate 574 ------- 10.2 7.6 13.8 9.5 05:12 13627 10.0 flat 05:14 13628 2.0 arc 05:45 13629 1201.0 target 06:13 13630 1503.0 target 06:56 13631 0.0 target Actually a 42 min exposure. Shutter problems ----- sequence 13632, plate 778 ------- 15.1 22.3 22.9 26.3 07:34 13632 10.0 flat 07:36 13633 2.0 arc 07:39 13634 0.0 bias 07:43 13635 0.0 bias 07:47 13636 10.0 flat 07:49 13637 2.0 arc 08:21 13638 6665.0 target 08:45 13639 5365.0 target 09:07 13640 1201.0 target 09:30 13641 1201.0 target 09:37 13642 240.0 smear 09:55 13643 901.0 target 09:57 13644 10.0 flat 09:59 13645 2.0 arc ----- sequence 13646, plate 788 ------- 10:09 13646 10.0 flat 10:11 13647 2.0 arc 10:43 13648 2622.0 target 11:07 13649 2605.0 target 11:29 13650 1201.0 target 11:39 13651 240.0 smear 11:42 13652 10.0 flat 11:45 13653 2.0 arc 12:13 13654 1503.0 target 12:40 13655 1201.0 target ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 0404Z imager 20.21 0.0000 59.79 0.0000 100.47 0.0000 1.000000 0524Z 9 574 32.18 0.0048 57.30 -0.0037 206.66 0.0079 0.999920 0813Z 5 778 178.31 -0.0037 60.12 -0.0010 -3.01 -0.0315 0.999870 0939Z 5 778 196.86 -0.0037 57.59 -0.0010 32.13 -0.0315 0.999870 1025Z 4 788 179.48 -0.0040 63.13 -0.0003 -0.79 -0.0239 0.999890 1229Z 4 788 207.75 -0.0040 56.30 -0.0003 50.86 -0.0239 0.999900 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL 5070 - 5075, 5082 Stays: JL 5076 - 5081, 5083 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 21:04 imager 1.00000 0 -239 -127 20 59.8 -9.3 16 22 23 2.0 22:24 9 574 0.99992 789 1923 110 32 57.3 -9.0 19 13 - 2.3 01:13 5 778 0.99987 1283 2324 110 178 60.1 -8.7 18 30 - 2.1 02:39 5 778 0.99987 1283 2331 110 197 57.6 -9.3 14 342 - 1.8 03:25 4 788 0.99989 1085 2114 70 179 63.1 -8.8 11 54 - 1.3 04:12 4 788 0.99989 1085 2087 40 192 62.1 -7.4 22 9 - 1.8 05:29 4 788 0.99990 986 2005 25 208 56.3 -4.9 11 355 - 2.2 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 17:43 16 -22 19 324 (NW) 247 - clear 20:57 15 -22 9 358 (NNW) 371 - clear 21:29 15 -22 15 6 (N) 746 - clear 22:01 15 -25 16 9 (N) 320 - clear 22:32 15 -25 18 357 (NNW) 356 - clear 23:06 15 -24 15 26 (NNE) 345 - clear 23:38 15 -26 14 4 (N) 273 - clear 00:10 15 -22 14 0 (N) 262 - clear 00:41 16 -24 5 58 (ENE) 255 - clear 01:11 16 -23 6 31 (NNE) 243 - clear 01:43 16 -23 9 15 (NNE) 249 - clear 02:16 15 -24 4 53 (NE) 268 - clear 02:48 15 -24 13 7 (N) 286 - clear 03:18 15 -24 14 18 (NNE) 293 - clear 03:48 17 -27 18 359 (NNW) 213 - clear 04:21 18 -27 19 18 (NNE) 217 - clear 04:53 20 -30 16 1 (N) 179 - clear 05:24 23 -28 13 9 (N) 149 - clear 05:57 22 -24 12 32 (NNE) 125 - clear 06:30 24 -27 17 6 (N) 123 - clear ---=== TELESCOPE STATUS ===--- 0230Z - Opened doors. Blowers on 0300Z - Opened enclosure Telescope stowed at 30 deg. alt with cartridge 9 mounted. Counterweights at 270. Spectro auto-fill connected. 1203Z Spectro dewar weight - 156 lb 1204Z Imager dewar weight - 111 lb 1311Z Closed. Dessicants in the lower enclosure are still blue. ---=== SOFTWARE USED ===--- IOP/SOP: v3_71_1 Watcher: v2_15_0 MCP: v5_10_0 TPM: v2_5_1 AstroDa: v14_36 TCC: 2.6.2 sdssProcedures: v1_40 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0720 0.0750 Axial B 0.8030 0.8020 Axial C 0.0640 0.0710 Trans D -1.4920 -1.4860 Lateral E 1.8110 1.8540 Lateral F 1.3850 1.4240 GALILS Commanded: 5400. -3700. 900. -200. 31550. 30650. Actual: 5377. -3699. 923. -208. 31535. 30647. SETMIR VALUES PriDesOrient: 0.00 -11.80 23.00 1256.90 642.10 PriOrient: 0.00 -12.16 22.81 1257.41 642.19 SECONDARY: ---------- Focus: 0.00 Air Temp.: -9.1 Alt.: 30.113735 MIGS TONIGHT NOMINAL Axial A 1.5460 1.5500 Axial B 1.2340 1.2260 Axial C 1.2490 1.2480 Trans D 0.2230 0.2320 GALILS Commanded: 1599460. 1565041. 1586471. -10400. -9750. Actual: 1599600. 1565250. 1586350. -10400. -9750. SETMIR VALUES SecDesOrient: 1257.00 -3.40 -10.00 0.00 133.82 SecOrient: 1256.93 -3.51 -9.99 -0.23 133.77 ---=== PROBLEMS IN DETAIL ===--- IOP --- Pete tried to endDrift from an IOP different from the one where the goDrift -bias had started. It said it issued the iccExec command to stop. photo1 crate stopped but photo2 and astrom CCDs kept drifting.. endDrift from Steph's iop (where the goDrift was started) worked, and Pete had to kill the hung process. When Pete tried to start a new IOP, it got this far before hanging: --------------- Switching umask from 02 to 002 dscRun using system v14_36 Executing commands in /p/dervish/v8_7/etc/dervishStartup.tcl: Executing commands in /p/astrotools/v5_6/etc/astrotoolsStartup.tcl astroda OAC version v14_36 --------------- but when the 'Mountain estimate of overall data quality' question was answered in the endDrift that worked (Steph's IOP), it came back. IOP --- A problem similar to the previous one... Pete had a drift going and Pete and Steph both started other IOP sessions after the drift started. Both of these new sessions hung at starting astroDa, and stayed that way until the drift ended. Windscreen Touched ------------------ altitude (Windscreen touched in altitude: UP (Mar 03 23:49:56): Mar 03 23:50:12 MST ) Spectrographs ------------- CCD 01 is running at the cold end of nominal & occasionally runs a bit colder than nominal. This was filed as a PR last night. SOP --- Cart 9, plate 574, gotoField -gflat showed another example of a fiber position mapping in saoMon being too close to the edge, forcing us to use startMon -simple: shSubRegNew: subregion row/col out of bounds while executing "subRegNew $reg $rlen $clen $rlo $clo" invoked from within "set tmpReg [subRegNew $reg $rlen $clen $rlo $clo]..." (procedure "stupidCentroid" line 10) invoked from within "stupidCentroid $reg $gFiber(gprobe,$i,ymin) $gFiber(gprobe,$i,xmin) $gFiber(gprobe,$i,ymax) $gFiber(gprobe,$i,xmax)" invoked from within "set ret [stupidCentroid $reg $gFiber(gprobe,$i,ymin) $gFiber(gprobe,$i,xmin) $gFiber(gprobe,$i,ymax) $gFiber(gprobe,$i,xmax)]..." ("loop" body line 3) invoked from within "loop i 1 12 { set ret [stupidCentroid $reg $gFiber(gprobe,$i,ymin) $gFiber(gprobe,$i,xmin) $gFiber(gprobe,$i,ymax) $gFiber(gprobe,$i,xmax)] ..." (procedure "guiderFlatField" line 65) invoked from within "guiderFlatField -openup" invoked from within "if {$slewTimedOut} { murmur "Timed out waiting for slew to take guider flat" puts "Slew timed out; no guider flats taken" } else { ..." invoked from within "if {$ff_on == $nlamp} { set slewTimeoutBegin [getclock] set slewTimeoutTime 200 set slewTimedOut 0 listenerToTCC watchTCCSlew sleep ..." invoked from within "if {$gflat == 1} { echo "Performing a guiderFlat" echo "...Closing Flat Field Screen" flatFieldScreen closed echo "...Turning cali ..." (procedure "gotoField" line 42) invoked from within "gotoField -gflat" ("eval" body line 1) invoked from within "eval "gotoField $flag"" (procedure "GUIgotoField" line 16) invoked from within "GUIgotoField -gflat" ("eval" body line 1) invoked from within "eval "GUIgotoField $GUIgotoFlag"" invoked from within ".sgui.gotofield.go invoke" ("uplevel" body line 1) invoked from within "uplevel #0 [list $w invoke]" invoked from within "if {($w == $tkPriv(window)) && ([$w cget -state] != "disabled")} { uplevel #0 [list $w invoke] }" invoked from within "if {$w == $tkPriv(buttonWindow)} { set tkPriv(buttonWindow) "" $w config -relief $tkPriv(relief) if {($w == $tkPriv(window)) && ([$w cget -state] ..." (procedure "tkButtonUp" line 3) invoked from within "tkButtonUp .sgui.gotofield.go" (command bound to event) --- U3 -- After a succesful imaging drift, we put the camera back in the doghouse. We decided to keep monitoring U3, since we had just moved the camera, and a bad connection/jostling/cold weather link is a suspect in the U3 flakiness. Sure enough, U3's bias level started to climb as soon as the drift began. We let Connie know about it and kept the bias running all night, after disabling archiving (see Pete's folklore on the subject). Note also that U3 threw a vdd1 error in the watcher, and ran on the high side of the nominal range all night. Son of Spectro -------------- While taking science frames, SoS gave a warning that the disk was filling. We have a big new disk. Why is data going to the old disk? A PR was filed. sdR-r2-00013639.fit: WARNING: SOS disk /data/spectro/52337 is 96% full sdR-r2-00013639.fit: WARNING: SOS disk /data/spectro/spectrologs/52337 is 96% full sdR-b2-00013639.fit: WARNING: SOS disk /data/spectro/52337 is 96% full sdR-b2-00013639.fit: WARNING: SOS disk /data/spectro/spectrologs/52337 is 96% full