From: stephanie snedden Subject: Re: 2.5m obslog 20070811 (MJD 54324) Date: Sun, 12 Aug 2007 16:21:01 -0600 Um, ignore my previous email. 45765 is a bias. There were two more exposures after that, with 45767 being the science exposure. They never showed up in SoS and they all have the same sequence ID - 45765. They didn't show up in SoS because there was no pre-cal flat taken. So, no rpioblem apart from the lack of mechanicals info in the headers. Steph On Aug 12, 2007, at 3:51 PM, stephanie snedden wrote: > According to the log, the test science exposure was 45765. In the > SoS page that frame number shows up as a bias. In the frame header, > the flavor is 'target' with an exposure time of 501 s. Observers, > did you have any problems before or during this exposure? Did you > happen to use the -bias flag accidentally? This is very confusing. > > Steph > On Aug 12, 2007, at 5:35 AM, Audrey Simmons wrote: > >> >> APACHE POINT OBSERVATORY SDSS 2.5M >> >> OBSERVING LOG >> Saturday August 11, 2007 >> >> (MJD 54324) >> >> ---=== OBSERVING TEAM ===--- >> >> (Dayshift) >> Howard Brewington >> >> (Observers) >> Elena Malanushenko >> Audrey Simmons >> Steph Snedden (support) >> Dan Long (support) >> >> ---=== OBSERVING PLAN ===--- >> >> Shake and Science! >> >> ---=== OBSERVING SUMMARY ===--- >> >> We opened to clear, non-photometric skies but clouds came in soon >> after. >> >> More shake tasks were completed (including a new working pointing >> model). >> >> Around 08:00Z, cartridge 5 (plate 2628) was mounted. >> -The upper-right FF lamp did not turn on. >> -There still is a light leak in spectrograph 2. >> -One science exposure was taken as part of a shake task, >> but sadly no >> MC1 or MC2 appeared in the header of the sdR file. >> >> At 08:57Z, we recieved a critical alert for ln2_empty sp1. We >> hooked up the >> lines and force-filled the dewers until the temperatures for >> cameras 1 & 4 >> were back down to normal. The secondary dewers might be having >> some trouble >> holding pressure (see log for details and problem section for >> watcher errors)? >> >> Misc watcher errors in problem section. >> >> ---=== OBSERVING LOG ===--- >> >> Afternoon: >> ----------- >> >> I changed the imager dewar. >> >> During the imager bias, I noticed that the low-level noise in >> dewar-one >> (mostly G-1) had returned today. See run # 6886 frames 42 and >> 43. This >> problem disappears when the T-bars are unlatched; however, we >> still plan to do >> the imager monthly checkout in the next few days. >> >> ++++++++++++++++++++++++++++++ >> >> We still have the light leak problem with spectrograph #2; see below: >> >> Exposures 45757, 45758, 45761, and 45762 were done with the lights >> on inside >> the 2.5-meter enclosure. Whereas, exposures 45759 and 45760 were >> done with the >> light off. These exposures were taken after Bob P. came to the >> site and tried >> to find/repair the light leak problem. To Bob's credit, the >> problem does not >> seem as bad as yesterday. >> >> b1 r1 b2 r2 EXPTIME >> BIAS-00045757 PERCENTILE98 10 10 28 17 0.0 >> BIAS-00045758 PERCENTILE98 9 9 37 18 0.0 >> >> BIAS-00045759 PERCENTILE98 9 9 9 9 0.0 >> BIAS-00045760 PERCENTILE98 9 9 9 8 0.0 >> >> BIAS-00045761 PERCENTILE98 10 9 44 36 0.0 >> BIAS-00045762 PERCENTILE98 10 9 45 36 0.0 >> >> ++++++++++++++++++++++++++++++ >> >> No other problems discovered during the afternoon checkout. >> >> Other shake tasks completed include the following: >> >> I cleared >> space on sdsshost2:/data with the byebye script. >> >> I replaced the battery in the DIMM's reflex finder. I also >> cleaned its >> brightness control. >> >> I still need to do new guider darks but could not today because >> the engCam was >> mounted. I will do new darks on Tuesday afternoon. >> >> The spectro focus/collimation was not checked today because the >> engCam was >> mounted. >> >> Misc Watcher messages are posted in the Problems Section. >> >> >> Night: >> ----------- >> >> 01:15Z - Started ventilation, with doors and louvers open, fans on. >> >> 02:10Z - Opened enclosure to clear, but non-photometric skies. >> >> 02:57Z - Started setting up telescope pointing model. We ran into >> trouble with >> gcam dofind/doread inside TCC when it didnt not return GSDataPix >> values. This >> happened even though exposures of the fk5 star were successfully >> taken and >> displayed. Steph was contacted about the problem and she solved it by >> restarting TCC altogether. >> >> 04:20Z - The 72-star pointing model program began, but had to be >> aborted after >> the first one due to a large fiducial in azmith. We were not able >> to find the >> fk5 star until several minutes later. The fiducial had to be >> corrected and the >> TCC had to be restarted. >> >> 04:46Z - We successfully started the pointing model. Clouds came in. >> >> 07:45Z - Pointing model finished, checked, and applied. Results >> are printed. >> >> 07:55Z - Engineering camera removed, cartridge 5 - seguefaint155 >> plate 2628 >> mounted. The guider computer had to be rebooted twice. GSFOGTF! We >> had to do a >> very large scale change though (0.06). >> >> 08:06Z - When we tried to take precals, the upper-right FF lamp >> did not turn >> on. We searched the engineering trailer for spare parts but on >> found the bulbs >> and not the accompanying assembly. >> >> 08:57Z - We received a critical error message saying ln2_empty for >> sp1 >> corresponding to cameras 1 & 4. We checked the temperatures and >> camera 1 was >> up to -27 degees at a point and camera 4 was up to -56 degrees. We >> immediately >> hooked up the lines, force filled the secondary dewers and issued >> the commands >> "cc stopfillseq" and "cc startfillseq" repeatedly. Dan Long was >> called and he >> said the pressure on the dewer was too low (3psi) when it should >> be close to >> ten. At 10:35Z, the pressure on the dewer read 7.5psi and both >> cameras were >> almost back to their normal ~-90 degree temperatures. We also >> noticed that the >> pressure building steadily declined after a few minutes for the >> primary specro >> dewer. >> >> 10:45Z - Started 500 second exposure on cartridge 5 in order to >> check the >> header and test the new version of iop. Unfortunatly, the sdR file >> did not >> show MC1 or MC2 in the header. >> >> 11:34Z - endNight rejoiced >> >> ---=== IMAGING RUN SUMMARY ===--- >> >> Run Time Stripe Lambda Last Flavor Comments >> Start End Begin End Frame >> >> --------------------------------------------------------------------- >> ---- >> >> 6886 21:10Z 21:34Z 100 O -13.26 -7.27 54 ignore >> 6887 00:56Z 01:02Z 100 O 43.37 44.88 24 ignore >> ---=== IMAGING RUN DETAILS ===--- >> >> ---=== SKIPPY RESULTS ===--- >> >> Run Frame nFrames stars muErr muRms nuErr nuRms rot >> az el >> --------------------------------------------------------------------- >> ------ >> ---=== LTMATCH RESULTS ===--- >> >> Run Field nFields alt az nGood rowMean rowSig colMean colSig rot >> --------------------------------------------------------------------- >> --- >> ---=== SPECTROSCOPY DATA SUMMARY ===--- >> >> Summary Checked (y/n): N/A >> QA Procedures Done (y/n): N/A >> >> UT Exp Time flavor comment (S/N)^2 totals >> ========================================== b1 r1 b2 r2 >> >> ----- sequence 45757, plate -9999 ------- >> 20:11 45757 0.0 bias >> 20:19 45758 0.0 bias >> 20:34 45759 0.0 bias >> 20:37 45760 0.0 bias >> 20:46 45761 0.0 bias >> 20:51 45762 0.0 bias >> ----- sequence 45763, plate -9999 ------- >> 23:04 45763 0.0 bias >> ----- sequence 45764, plate -9999 ------- >> 02:25 45764 0.0 bias >> ----- sequence 45765, plate 2628 ------- >> 08:14 45765 0.0 bias >> 09:18 45766 2.0 arc >> 10:49 45767 501.0 target >> >> ---=== TELESCOPE OFFSETS AND SCALE I ===--- >> >> Time Instrument Az Alt Rot Scale >> pos offset pos offset pos offset >> --------------------------------------------------------------------- >> --------- >> >> ---=== TELESCOPE OFFSETS AND SCALE II ===--- >> >> ---=== FOCUS LOG ===--- >> >> setmir piston Temp Wind >> Time Inst scale M1 M2 Foc Az Alt (C) MPH >> Dir filt fwhm >> --------------------------------------------------------------------- >> --------- >> 21:16Z engcam 1.00000 0 -2743 0 121 30.0 21.1 11 186 >> ---=== WEATHER LOG ===--- >> >> Wind >> Time Temp F Dewp F MPH Direction Dust DIMM Sky >> >> 18:53Z 64 53 0 258 (WSW) 1525 - Party >> cloudy >> 19:25Z 65 52 3 207 (SSW) 1425 - " >> 19:56Z 65 54 5 189 (S) 1632 - " >> 20:29Z 68 53 4 181 (S) 1796 - " >> 20:59Z 69 53 4 182 (S) 1619 - " >> 21:30Z 71 54 12 198 (SSW) 1416 - " >> 22:02Z 69 49 11 182 (S) 1353 - " >> 22:34Z 74 49 15 226 (SW) 1087 - " >> 23:06Z 70 48 5 183 (S) 1179 - " >> 23:38Z 67 46 9 189 (S) 1125 - " >> 00:10Z 68 44 4 165 (SSE) 1109 - " >> 00:42Z 66 46 10 149 (SSE) 1301 - " >> 01:19Z 65 47 9 148 (SSE) 1299 - " >> 01:49Z 65 44 12 141 (SE) 1315 - " >> 02:20Z 64 45 11 126 (SE) 1304 - " >> 02:35Z 64 45 11 133 (SE) 1164 - " >> 03:06Z 65 42 12 132 (SE) 1168 - " >> 03:38Z 64 42 12 128 (SE) 1221 - " >> 04:10Z 62 42 11 124 (SE) 1173 - " >> 04:41Z 62 42 10 114 (ESE) 1260 - " >> 05:12Z 62 44 13 109 (ESE) 1369 - " >> 05:43Z 61 44 13 113 (ESE) 1519 - " >> 06:16Z 62 44 7 89 (E) 1686 - " >> 06:47Z 61 45 10 110 (ESE) 1700 - " >> 07:18Z 61 44 7 83 (E) 1759 - " >> 07:49Z 61 45 9 106 (ESE) 1910 - " >> 08:19Z 62 44 7 87 (E) 1944 - " >> 08:51Z 62 44 6 93 (E) 1775 - " >> 09:21Z 63 44 5 91 (E) 1566 - " >> 09:51Z 63 44 6 84 (E) 1481 - " >> 10:24Z 63 44 9 62 (ENE) 1386 - " >> 10:55Z 62 44 10 70 (ENE) 1458 - " >> 11:25Z 62 44 11 78 (ENE) 1487 - " >> >> ---=== TELESCOPE STATUS ===--- >> >> 01:15Z - Began ventilation. Doors and louvers opened, fans on. >> >> 02:10Z - Opened enclosure. >> >> 11:20Z - Enclosure is on, doors and louvers are closed, and fans >> are off. >> >> No interlocks bypassed. >> >> Status at: 11:30Z >> >> Telescope stowed at: 30,121,00 mount >> Instrument mounted: Cartridge 5 >> Counterweights at: 250 lbs >> LN2 autofill systems: Connected and turned on. >> 180L LN2 dewar scales: Spectro 111.90 lbs, 16.91 psi >> Imager 154.80 lbs, 19.70 psi >> >> ---=== SOFTWARE USED ===--- >> >> IOP/SOP: v4_37_0 >> Watcher: v2_36_0 >> MCP: v6_4_0 >> TPM: tpm_v3_5_0 >> AstroDa: v15_13_1 >> TCC: TCC 2.9.1 2007-06-21 >> sdssProcedures: v2_35 >> SoS: v5_1_8 >> plate-mapper: v4_3_1 >> >> >> ---=== MIRROR NUMBERS ===--- >> >> PRIMARY: >> -------- >> Scale: 1.000000 >> MIGS TONIGHT NOMINAL >> Axial A -5.2130 -5.2130 >> Axial B -0.2135 -0.2135 >> Axial C -0.0016 -0.0016 >> Trans D 11.6400 11.6400 >> Lateral E 9.9568 9.9568 >> Lateral F 11.5316 11.5316 >> GALILS >> Commanded: 4600. -2000. 2650. -9300. -9800. -9800. >> Actual: 4600. -2000. 2650. -9300. -9800. -9800. >> SETMIR VALUES >> PriDesOrient: 0.00 0.00 0.00 0.00 0.00 >> PriOrient: 0.00 0.00 0.00 0.00 0.00 >> >> SECONDARY: >> ---------- >> Focus: 0.00 >> Air Temp.: 18.3 >> Alt.: 29.986203 >> MIGS TONIGHT NOMINAL >> Axial A 0.7974 0.7973 >> Axial B 0.6040 0.6041 >> Axial C 0.5425 0.5425 >> Trans D 0.5999 0.5999 >> GALILS >> Commanded: 1799037. 1309558. 1643397. -9450. -4400. >> Actual: 1798650. 1309550. 1643400. -9450. -4400. >> SETMIR VALUES >> SecDesOrient: 1257.00 -60.00 -140.00 -190.00 200.12 >> SecOrient: 1257.11 -59.95 -140.13 -189.55 200.10 >> >> ---=== PROBLEMS IN DETAIL ===--- >> >> There was a loud periodic "banging" noise coming from the NE >> corner of the >> enclosure (near enterance) when it was opened. >> >> More rat homes were found on rails when the enclosure was opened. >> >> Upper-right hand FF lamp is still out. >> >> The secondary spectro dewer for sp1, cameras 1 & 4, does not seem >> to hold >> enough pressure to fill. >> >> ---=== misc Watcher messages ===--- >> tmicro (Disconnected Sensor in M0B2:: 2007-08-12 01:46:53Z) >> >> tracking (Excessive Az Tracking Error:: 2007-08-12 02:15:54Z) >> >> tmicro (Disconnected Sensor in M0B2:: 2007-08-12 02:27:55Z) >> >> MCP: Too long delay 64745.403462; disabling trace (2007-08-12 >> 02:06:33Z >> sdssmcp) >> >> MCP: failed to get time from tai-time.apo.nmsu.edu: S sntpcLib TI >> (2007-08-12 >> 03:47:52Z sdssmcp) (repeatedly) >> >> tmicro (Disconnected Sensor in M0B2:: 2007-08-12 04:33:01Z) >> dewar (Imager Dewar Low Weight:Spectro Dewar Low Weight:Imager >> Dewar Scale >> Communications Fault:Spectro Dewar Scale Communications Fault: >> 2007-08-12 >> 08:13:06Z ) >> >> Watcher errors during ln2 critical alerts: >> ------------------------------------------ >> >> m1 temp (Excessive M1 - PMSS Difference:Excessive Telescope - Ambient >> Difference:Excessive Radial Gradient:Excessive Front-Back >> Difference (Entire >> Mirror):Excessive Front-Back Difference (Left Half):Excessive >> Front-Back >> Difference (Right Half):Excessive Front-Back Difference (Lower >> Half):Excessive >> Front-Back Difference (Upper Half): 2007-08-12 08:12:16Z ) >> >> m1 mig (Communications Fault: 2007-08-12 08:13:06Z) >> >> tmicro (Disconnected Sensor in M0B2:: 2007-08-12 09:40:47Z) >> >> m2 galil (Communications Fault: 2007-08-12 08:13:06Z) >> >> m1 galil (Communications Fault: 2007-08-12 08:13:06Z) >> >> ca (Channel Access Failure: TPM Down?: 2007-08-12 08:12:16Z) >> >> m2 temp (Excessive Front-Back Difference (Lower Half):Excessive >> Front-Back >> Difference (Upper Half): 2007-08-12 08:12:16Z ) >> >> m2 mig (Communications Fault: 2007-08-12 08:13:06Z) >> >> primary ln2 fill time (FAULT!!! : 2007-08-12 07:38:54Z) >> >> ln2 empty (DEWAR_4 : 2007-08-12 08:57:01Z) >> >> ln2temp >> >> Secondary Dewar Pressure (FAULT!!! : 2007-08-12 07:34:15Z) >> >> Camera cooling/heating but not scanning (-45.31: 2007-08-12 >> 10:05:21Z) >> >> >> >> DSS DSS DSS DSS DSS Digital Sky Survey DSS DSS DSS DSS DSS DSS >> DSS *** The information posted to SDSS mailing lists is >> proprietary *** >> DSS This is message 3621 in the sdss-25mlog archive, URL >> DSS http://www.astro.princeton.edu:81/sdss-25mlog/msg. >> 3621.html >> DSS The index is at http://www.astro.princeton.edu:81/sdss-25mlog/ >> INDEX.html >> DSS To join/leave the list, go to >> DSS http://www.astro.princeton.edu:81/cgi-bin/ >> mailinglists.pl/show_subscription?list=sdss-25mlog >> DSS To post a message, mail it to sdss-25mlog@astro.princeton.edu >> DSS >> DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS > > > DSS DSS DSS DSS DSS Digital Sky Survey DSS DSS DSS DSS DSS DSS > DSS *** The information posted to SDSS mailing lists is proprietary > *** > DSS This is message 3623 in the sdss-25mlog archive, URL > DSS http://www.astro.princeton.edu:81/sdss-25mlog/msg. > 3623.html > DSS The index is at http://www.astro.princeton.edu:81/sdss-25mlog/ > INDEX.html > DSS To join/leave the list, go to > DSS http://www.astro.princeton.edu:81/cgi-bin/ > mailinglists.pl/show_subscription?list=sdss-25mlog > DSS To post a message, mail it to sdss-25mlog@astro.princeton.edu > DSS > DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS