APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Saturday September 12, 2009 (MJD 55087) ---=== OBSERVING TEAM ===--- Alaina Shelden Dan Oravetz Kyle Dawson Craig Loomis Paul Harding Dmitry Bizyaev ---=== OBSERVING PLAN ===--- Commissioning ---=== OBSERVING SUMMARY ===--- We had clouds most of the night, but we did manage to open an hour before twilight and try to test the guider with cartridge 11, although nothing is conclusive. We had an azimuth abort during the slew to field. sp1 gain was effectively turned off and while we worked on trying to dig up the cause, nothing definitive was found. Craig, Kyle, and Connie are aware of this issue. Kyle made some changes to "collimate" that we hoped to test, but it'll have to wait for another night since the gain issues prevented us from taking any useful calibration frames. We tried some darks just to exercise the system and while sp2 seemed to readout each image fine, sp1 failed to readout the last few darks (more details in log). We still don't have the 45-deg. alt. fiducial reading the majority of the time. ---=== OBSERVING LOG ===--- Afternoon --------- Rainy and cloudy. Verified that the STUI actors were alive and responsive. Checked disk space: Filesystem Size Used Avail Use% Mounted on /dev/sda3 142G 123G 12G 92% / /dev/sda1 99M 30M 64M 33% /boot /dev/sdb1 917G 830G 41G 96% /data sdssfiles1p:/data1/data 1.5T 780G 613G 57% /files hub25mp:/home 92G 49G 44G 53% /home_hub25m Took an imager bias. Checked things out at the telescope and the lower enclosure. We did not see any altitude fiducial crossings at 45 degrees during the test slews. Kyle made some changes within the guts of the "collimate" routine and he wanted us to take some Hartmann images to test these changes, but the sp1 gain was turned off, so we held off. Night ----- Craig was contacted regarding the sp1 gain issue and we tried to investigate the cause over the course of a few hours. Basically, the gain on sp1 appears to be turned off (sp1 VDD is always +15V in blue and -15V in red); it's also obvious in the images that the gain is off. My understanding is that the blue VDD is always supposed to be held high and the red VDD is supposed to only go high during readout. sp2 had the gain turned on, but it wasn't working nominally either because although the sp2 blue gain was always high (+24.5V), the sp2 red gain was also always high (-22V). In addition to lots of other digging around, Craig tried some cold reboots and iacks and they did not solve anything. Craig, Kyle, and Connie are aware of this issue. Since the humidity was still too high (dewpoint depression 1.9C) to attempt any guider tests on sky, and with the gain problems we could not take any useful calibrations, we decided instead just to take a loop of darks in order to exercise the system and test stability. 09:03Z - sop doCalibs ndark=10 darkTime=600 101251 - first dark After both sp1 and sp2 read out darks without any obvious trouble, sp1 stopped reading out and taking darks while sp2 continued to expose and read out for two more exposures. Finally, the entire dark loop failed. The errors that we could find during this period are below: 09:50:51 APO.doravetz.sop 504 boss w text='Unable to clock the CCDs on sp1cam.' 09:50:54 .boss 230 boss f text="command failed: ICCError('command SFWD is active, cannot send new command SHOWREADVOLTS',) at /export/home/boss/devel/boss-trunk/python/boss/Controllers/Forth.py:126" 10:04:41 APO.doravetz 71 sop w text="1 tasks failed to respond; heard from: " 10:04:41 APO.doravetz 71 sop w text="Failed to take dark" 10:05:23 APO.doravetz.sop 505 boss w text="Readout timed out." We started another dark (just a single exposure) and again, only sp2 read out. We didn't dwell on this, though, because the weather improved, we called Paul and we opened to test the guider. We used cart. 11 and after an azimuth abort during the slew we eventually found guide stars and played with offsets. At one point we had as many as 10 (or was it 11?) guide stars visible. Unfortunately, we were battling twilight so nothing conclusive was found. 12:25Z - We closed up. endNight rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 8029 23:31Z 23:49Z 100 O 53.95 58.65 46 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): QA Procedures Done (y/n): UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ---=== 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 ------------------------------------------------------------------------------ ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 20:24Z 52 44 0 250 (WSW) 1269 - clouds 20:56Z 55 41 1 123 (ESE) 1140 - clouds 21:28Z 54 46 3 275 (W) 1097 - clouds 22:00Z 54 45 2 261 (W) 1177 - clouds 22:33Z 47 44 22 86 (E) 1770 - clouds 23:05Z 46 44 18 69 (ENE) 1528 - clouds 23:37Z 46 41 22 63 (ENE) 1002 - clouds 00:09Z 45 41 18 74 (ENE) 1112 - clouds 00:41Z 45 41 16 82 (E) 1008 - clouds 01:13Z 46 39 19 71 (ENE) 828 - clouds 01:45Z 47 39 26 62 (ENE) 966 - clouds 02:18Z 49 36 19 74 (ENE) 1050 - clouds 02:50Z 47 37 18 70 (ENE) 833 - clouds 03:22Z 46 41 13 75 (ENE) 1125 - clouds 03:54Z 46 41 15 70 (ENE) 1209 - clouds 04:26Z 46 41 18 67 (ENE) 1287 - clouds 04:58Z 44 43 18 71 (ENE) 1703 - clouds 05:31Z 45 43 18 62 (ENE) 1753 - clouds 06:03Z 44 43 14 77 (ENE) 2072 - clouds 06:35Z 44 42 16 75 (ENE) 1815 - clouds 07:07Z 44 43 17 74 (ENE) 1952 - partly cloudy 07:39Z 45 42 20 66 (ENE) 2153 - partly cloudy 08:11Z 45 42 15 69 (ENE) 2029 - partly cloudy 08:43Z 44 42 14 77 (ENE) 2015 - partly cloudy 09:16Z 44 42 13 69 (ENE) 2063 - partly cloudy 09:48Z 47 40 5 61 (ENE) 1720 - mostly clear 10:20Z 47 39 6 358 (NNW) 1388 - mostly clear 10:52Z 46 40 0 31 (NNE) 1238 - mostly clear 11:24Z 45 40 8 9 (N) 1238 - mostly clear 11:56Z 49 39 8 9 (N) 1229 - mostly clear 12:28Z 44 42 8 24 (NNE) 1479 - mostly clear ---=== TELESCOPE STATUS ===--- 10:35Z - Enclosure off. 12:25Z - Enclosure on, doors and louvers closed, fans off. No interlocks bypassed. Status at: 12:37Z Telescope stowed at: 30,121,00 mount Instrument mounted: Cartridge 11 Counterweights at: 250 lbs LN2 autofill systems: Connected and turned on. 180L LN2 dewar scales: Spectro 106.50 lbs, 18.65 psi Imager 139.60 lbs, 21.25 psi ---=== SOFTWARE USED ===--- IOP/SOP: v4_40_0 Watcher: v2_36_0 MCP: NOSVN TPM: tpm_v3_5_0 AstroDa: v15_13_1 TCC: TCC 2.11.0 2009-06-24 sdssProcedures: v2_44 SoS: v5_1_8 plate-mapper: v4_3_1 STUI: STUI-0.2.1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A -0.6940 -0.6940 Axial B -0.0300 -0.0410 Axial C -0.3720 -0.3710 Trans D 11.6130 11.6170 Lateral E 10.3759 10.3505 Lateral F 11.9380 11.9253 GALILS Commanded: 9900. 400. 5850. 1200. 2950. 2750. Actual: 9900. 400. 5850. 1200. 2950. 2750. SETMIR VALUES PriDesOrient: 0.00 -3.30 5.10 278.08 178.06 PriOrient: 0.00 -3.04 5.26 277.70 178.07 SECONDARY: ---------- Focus: 0.00 Air Temp.: 7.9 Alt.: 29.999997 MIGS TONIGHT NOMINAL Axial A 18.6190 18.6150 Axial B 15.6260 15.6120 Axial C 13.8430 13.8170 Trans D -11.7860 -11.7780 GALILS Commanded: 1597696. 1566232. 1588058. -7600. -12400. Actual: 1597700. 1566200. 1588100. -7600. -12400. SETMIR VALUES SecDesOrient: 1257.00 -4.00 -9.00 10.00 234.42 SecOrient: 1256.99 -3.98 -8.98 10.20 234.68 ---=== PROBLEMS IN DETAIL ===---