APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Tuesday February 5, 2002 (MJD 52311) ---=== OBSERVING TEAM ===--- Mike Harvanek (APO) Pete Newman (APO) Jon Brinkmann (APO; by phone) ---=== OBSERVING PLAN ===--- On-sky shake tests for imager then science. ---=== OBSERVING SUMMARY ===--- Clouds until 0530. Problem with the enclosure prevented us from opening after that. Various other problems. ---=== OBSERVING LOG ===--- During afternoon checkout the guider was not functioning. See the Problems section for details. Pete eventually fixed the problem. Heavy clouds and highly variable humidity prevented us from opening the enclosure at sunset. However, we tested the enclosure motion late in the afternoon by moving it 5 feet in both directions. Son-of-Spectro gave warnings about Empty or invalid sdReport files after the bias frames. See the Problems section for details. We tried to back out to the previous version of S-o-S (v4_7_6) following the intructions given in the shake plan but it restarted the same version. However, the instructions on the S-o-S documentation web page did restart the previous version and the warning messages did not occur. A PR (3146) was filed against S-o-S. Watcher gave weather warning messages that the outside air temperature was too low: airtemp (-10.3 (low) 22:23). There are no closure conditions pertaining to air temperature of which we are aware. What is the purpose of this message? The sky began to clear and the humidity began to drop and we went down to swap instruments and open the enclosure around 0530. We had difficulty getting the outside manipulator arm to release the cartridge on several occasions. After repeated attempts, it finally worked. We believe this is due to ice in the system. See the Problems section for details. A PR (3149) was filed. After swapping instruments, we attempted to remove the enclosure. It moved about 10 feet before we lost one of the phases (#2) and the enclosure stopped. We called Jon Brinkmann and were eventually able to get the building closed thanks to Pete who discovered that by pushing out hard on the guard rail he was able to temporarily activate the lost phase. Brinkmann then called Mark Klaene who is one of the two people qualified to fix the problem. However, Mark thought that the sliders may be damaged and therefore required a daylight inspection. See the Problems section for further details. A PR was filed (3147). At this point, we were closed for the night even though the sky was clear. However, shortly thereafter, blowing snow became a problem and we would have had to close anyway. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 2949 2155Z 2252Z 100 O 174.00 -171.92 84 ignore ---=== IMAGING RUN DETAILS ===--- ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot --------------------------------------------------------------- ---=== LTMATCH RESULTS ===--- Run Field nFields nGood rowMean rowSig colMean colSig rot --------------------------------------------------------------- ---=== SPECTROSCOPY DATA SUMMARY ===--- UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 23:55 12959 0.0 bias ----- sequence 12960, plate -9999 ------- 00:45 12960 0.0 bias ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: None Stays: None ---=== 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 15:34 18 12 12 307 (NW) 124 - pcl 16:09 17 10 8 357 (NNW) 138 - pcl 16:41 17 11 6 290 (WNW) 136 - pcl 17:13 17 11 12 20 (NNE) 126 - mcl 17:45 16 7 0 187 (S) 111 - mcl 18:17 14 12 12 50 (NE) 111 - mcl 18:50 14 12 16 65 (ENE) 66 - mcl 19:30 14 9 16 51 (NE) 75 - mcl 20:02 14 7 14 63 (ENE) 108 - mcl 20:34 13 9 14 59 (ENE) 124 - mcl 21:06 14 7 10 51 (NE) 122 - mcl 21:39 13 6 10 34 (NE) 105 - mcl 22:11 14 3 0 301 (WNW) 135 - mcl 22:43 13 5 8 11 (N) 127 - pcl 23:15 13 4 7 20 (NNE) 134 - clear 23:47 13 2 12 23 (NNE) 117 - clear 00:20 13 2 22 25 (NNE) 130 - clear 00:52 13 3 15 30 (NNE) 109 - blowing snow 01:24 13 3 16 23 (NNE) 122 - blowing snow 02:00 13 4 17 18 (NNE) 140 - blowing snow ---=== TELESCOPE STATUS ===--- Never fully opened but attempted opening around 0600. Telescope stowed at 30 degrees with cartridge 3 (plate 827) mounted. Counterweights at 280. Spectro auto-fill connected. Imager dewar 09:15 272 lb Spectro dewar 09:15 239 lb Building interlocks bypassed. Alt, az slip detection interlocks bypassed. ---=== SOFTWARE USED ===--- IOP/SOP: v3_66_4c Watcher: v2_15_0 MCP: v5_9_6 TPM: v2_4_6 AstroDa: v14_42 TCC: 2.6 sdssProcedures: v1_39 tccMon : v1_8 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0760 0.0750 Axial B 0.8040 0.8020 Axial C 0.0790 0.0710 Trans D -1.5220 -1.4860 Lateral E 1.8740 1.8540 Lateral F 1.4300 1.4240 GALILS Commanded: 5400. -3700. 900. -200. 31550. 30650. Actual: 5400. -3700. 900. -200. 31550. 30650. 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.: -8.3 Alt.: 30.044388 MIGS TONIGHT NOMINAL Axial A 1.5570 1.5500 Axial B 1.2420 1.2260 Axial C 1.2610 1.2480 Trans D 0.2010 0.2320 GALILS Commanded: 1599491. 1565205. 1586276. -10400. -9750. Actual: 1599600. 1565250. 1586350. -10400. -9750. SETMIR VALUES SecDesOrient: 1257.00 -3.40 -10.00 0.00 133.82 SecOrient: 1256.93 -3.40 -9.97 -0.22 133.70 ---=== PROBLEMS IN DETAIL ===--- Guider probles: --------------- We tested the spectro guider tonight, probably for the first time this dark run. The guide camera was not working. This was traced to the power switch being accidentally turned off on the black power 'brick' in the guide camera control box on the SW side of the rotator. Turning this on then rebooting the guider Macintosh solved the problem. The problem seems to be that the cooling tubes in the box lid had pressed on the power switch, turning it off when the box was last closed. All workers please note that care is needed when closing the guide camera box to arrange the pipes and cables inside to not press ont he power switches. S-o-S gives warnings about Empty or invalid sdReport files after biases: ------------------------------------------------------------------------ SPHDRFIX: sdR-b1-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b1-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r1-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r1-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b2-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b2-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r2-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r2-00012958.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r1-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r1-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b1-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b1-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r2-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r2-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b2-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b2-00012959.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b1-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b1-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r1-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r1-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b2-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-b2-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r2-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par SPHDRFIX: sdR-r2-00012960.fit: WARNING: Empty or invalid sdReport file /data/spectro/astrolog/52311/sdReport-52311.par Manipulator arm would not descend far enough to release the cartridge: ---------------------------------------------------------------------- The manipulator twice refused to descend far enough to deposit the cartridge it was carrying, once onto the Lindy cart and once back into the bay. We noted that both black rubber wheels on the end of the arms were stuck, and the right-hand roller-switch (RH as seen by the operator) was sticking slightly. This may be down just to ice in the works, as we were not able to fully defrost the whole mechanism before sunset tonight. Middle-phase power to enclosure lost during opening: ---------------------------------------------------- On attempting to open the enclosure, the building stopped after about 10 feet from the the west limits, and the power middle phase alarm sounded. The building would not move either way. We determined the problem was with the sliders on the S side of the building as we could hear arcing when we banged on the guard rails on that side. We managed to get enough power to close the building by pushing hard horizontally south on the guard rails. After the building had moved W about a foot, it ran normally back to the west stops. We consulted with Jon Brinkman, who in turn consulted with Mark Klaene. The conclusion was that the power sliders may have suffered damage during this event (and the similar event a few days ago), and need careful daylight inspection before we try to open again. We therefore stopped for the night (we also now have blowing snow keeping us closed in any case).