APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Tuesday August 3, 2004 (MJD 53221) ---=== OBSERVING TEAM ===--- Night: Dan Long Pete Newman Suppport: Craig Loomis ---=== OBSERVING PLAN ===--- Shake, night 2: If weather is bad, get the focus versus rotation with the spectrographs. If we can open, get the pointing model. ---=== OBSERVING SUMMARY ===--- The weather was bad. Got spectro focus versus rotation data. Behavior is nearly identical to that seen in April. Still see a flop in b1. Note to engineering staff: We will want the engineering camera mounted for tomorrow's observing. ---=== OBSERVING LOG ===--- Afternoon: ---------- Telescope top/bottom balance significantly different from normal (spectro configuration 200 instead of 250-270). Nearly empty spectro dewars slightly exaggerated the difference, but the mid-point of the range is still 220. We are not sure why it should be different from before the shutdown. Pete noticed a lot of water standing in and dripping from the 2.5m AC intake around where the coils are. The spectro scrolling display problem last night was traced to a hung process on the video card. This was cleared by resetting the video card. However one still needs to reboot the crate to configure the card. A phone cable to the console port is in place should this happen again. If it does, note what is on the display and/or pull the phone cable before rebooting so the info doesn't scroll off the display. Landru keeps crashing. Craig is working on the problem. Pete then drove from MonXMike, but not for long. The monitor started flaking out, screen quivering nervously left and right, and occasionally going blank for short times. Fortunately Craig found what the problem with Landru was (some sort of AFS setup change with the new operating system), and Pete was able to run from Landru. Night: ------ There are a lot of clouds and nearby thunderstorms, so we opt to get the spectrograph focus versus rotation angle data. Check of spectrograph focus .vs. rotation angle. Rot Frames b1 b2 r1 r2 45 27596,7 .07 .32 -.20 -.14 focus tweak made 45 27598,9 -.06 .25 -.04 -.07 start of sweep -90 27600,1 -.22 .31 -.09 -.03 -60 27602,3 -.21 .33 -.05 -.06 -30 27604,5 -.25 .28 .00 -.04 0 27606,7 -.22 .25 .01 -.04 30 27608,9 -.10 .23 .00 -.05 60 27610,1 -.08 .20 .03 -.03 90 27612,3 -.06 .20 .00 -.01 120 27614,5 -.02 .20 -.01 .01 150 27616,7 .00 .19 -.03 .04 180 27618,9 -.01 .21 -.04 .06 210 27620,1 -.14 .23 -.03 .05 240 27622,3 -.16 .22 .01 .07 270 27624,5 -.20 .22 .03 .06 240 27626,7 -.22 .24 .04 .07 210 missed this one 180 27628,9 -.08 .22 .03 .06 going back to 270 then 210 to come at it from the right direction 210 27630,1 -.21 .23 .01 .06 180 27632,3 -.09 .20 .01 .08 150 27634,5 -.07 .15 .03 .10 120 27636,7 -.05 .15 .03 .07 90 27638,9 -.06 .12 .03 .07 60 27640,1 -.12 .10 .05 .08 30 27642,3 -.14 .09 .04 .08 0 27644,5 -.17 .10 .06 .12 -30 27646,7 -.26 .11 .08 .07 -60 27648,9 -.34 .16 .07 .06 -90 27650,1 -.33 .18 .06 .06 These numbers are very similar to what was obtained in April. b1 still shows a .1 to .15 pixel jump around 0 and again around 180 rotator angle. This is superimposed on a roughly .2 pixel peak to peak sinusoidal variation. We took the average values of the focus over the rotation angles to make the case for slight tweaks to the blue cameras. At this point with less than an hour left before twilight, we decide to stop for the night. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 4740 00:24Z 00:35Z 100 O 28.22 30.90 31 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 27593, plate 1573 ------- 23:54 27593 0.0 bias ----- sequence 27594, plate -9999 ------- 00:15 27594 0.0 bias 03:47 27595 0.0 bias ----- sequence 27596, plate 1573 ------- 03:51 27596 2.1 arc 03:53 27597 2.1 arc 04:05 27598 2.1 arc 04:07 27599 2.1 arc 04:15 27600 2.1 arc 04:17 27601 2.1 arc 04:25 27602 2.1 arc 04:28 27603 2.1 arc 04:39 27604 2.1 arc 04:41 27605 2.1 arc 04:54 27606 2.1 arc 04:57 27607 2.1 arc 05:03 27608 2.1 arc 05:05 27609 2.1 arc 05:15 27610 2.1 arc 05:17 27611 2.1 arc 05:23 27612 2.1 arc 05:25 27613 2.1 arc 05:32 27614 2.1 arc 05:35 27615 2.1 arc 05:40 27616 2.1 arc 05:43 27617 2.1 arc 05:50 27618 2.1 arc 05:53 27619 2.1 arc 05:59 27620 2.1 arc 06:02 27621 2.1 arc 06:11 27622 2.1 arc 06:13 27623 2.1 arc 06:20 27624 2.1 arc 06:23 27625 2.1 arc 06:29 27626 2.1 arc 06:31 27627 2.1 arc 06:41 27628 2.1 arc 06:43 27629 2.1 arc 06:51 27630 2.1 arc 06:54 27631 2.1 arc 07:01 27632 2.1 arc 07:03 27633 2.1 arc 07:09 27634 2.1 arc 07:12 27635 2.1 arc 07:18 27636 2.1 arc 07:20 27637 2.1 arc 07:28 27638 2.1 arc 07:30 27639 2.1 arc 07:43 27640 2.1 arc 07:45 27641 2.1 arc 07:51 27642 2.1 arc 07:53 27643 2.1 arc 08:01 27644 2.1 arc 08:03 27645 2.1 arc 08:13 27646 2.1 arc 08:16 27647 2.1 arc 08:21 27648 2.1 arc 08:24 27649 2.1 arc 08:32 27650 2.1 arc 08:35 27651 2.1 arc 09:27 27652 2.1 arc 09:30 27653 2.1 arc ---=== 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: JL Stays: JL ---=== 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 00:16Z 68 47 6 298 (WNW) 442 - Mostly Cloudy 00:48Z 66 48 1 269 (W) 369 - Cloudy 01:20Z 64 47 2 267 (W) 423 - Cloudy 01:53Z 63 47 4 315 (NW) 432 - Cloudy 02:25Z 60 50 14 21 (NNE) 4182 - Cloudy 02:57Z 59 49 13 31 (NNE) 3996 - Clouds/Lightning 03:34Z 59 49 10 19 (NNE) 1655 - Clouds/Lightning 04:06Z 58 49 14 41 (NE) 1129 - Clouds/Lightning 04:38Z 59 47 14 20 (NNE) 455 - Clouds/Lightning 05:09Z 59 43 14 35 (NE) 218 - Clouds/Lightning 05:39Z 58 43 16 26 (NNE) 185 - Clouds/Lightning 06:11Z 59 41 20 22 (NNE) 131 - Mostly Cloudy 06:44Z 60 41 20 28 (NNE) 121 - Mostly Cloudy 07:15Z 61 40 12 26 (NNE) 147 - Cloudy 07:48Z 61 40 3 0 (N) 170 - Cloudy 08:19Z 62 40 4 0 (N) 223 - Mostly Cloudy 08:51Z 63 40 4 327 (NNW) 213 - Mostly Cloudy 09:21Z 61 41 4 276 (W) 208 - Mostly Cloudy 09:54Z 61 42 3 271 (W) 204 - Partly Cloudy ---=== TELESCOPE STATUS ===--- Enclosure never opened Stowed at 30 deg alt, cartridge 5 installed. Spectro auto-fill connected. Spectro dewar 10:00Z Dewar wt 160 lb Imager dewar 10:00Z Dewar wt 217 lb Imager dewar pressure is a little below normal at 18 PSI, but seems stable at this value. No interlocks bypassed. ---=== SOFTWARE USED ===--- IOP/SOP: v3_140_0 Watcher: v2_29_0 MCP: v5_25_0 TPM: tpm_v2_42_0 AstroDa: v14_47 TCC: TCC 2.7.2 November 11 2003 sdssProcedures: v1_92 SoS: v4_10_7 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- ---=== PROBLEMS IN DETAIL ===--- We got one complaint from the tpm regarding a communications fault with the dewar scales. This even with the new cables? dewar (Imager Dewar Scale Communications Fault:: 2004-08-04 09:17:21Z)