Date: Sun, 17 Dec 2006 07:19:26 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20061216
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Saturday, December 16, 2006
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT   START  FINISH
 -------------------------------------------------------------------
 D.Bowen         D.Bowen                 DIS          16:45   00:00
 G.Gyuk          G.Gyuk, M.Hammergrin    DIS          00:00   07:20
                 A.Puckett
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
---------------------------------------------------------------------
 PU05/R      17:57  00:00   0    0   0.6   0   5.5   0    0    0    0
 UC06/R      00:00  06:01   0    0    0    0   4.2  1.8   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Craig restarted the Hub after doing some software mods from the PR last
 night.
 18:02 DISslit Guider hung, found problem to be bad slitmask file for 1.5
 slit (Craig figured that one out).  Numerous debug messages came thru
 for Craig.  We lost about 35 mins on the problem.
 Took an NA2 guider image (since the slitview field had 1 faint star) and
 we got a smallish (1/4 frame) 5 pointed object in the center.  Also had
 stars in the field.  Looked like a shutter problem to me (Craig thought
 maybe the shutter wasn't closing all the way).  I set up the NA2 guider
 in manual mode to excercise the shutter and see if the object went away.
 See NA2 guider image 85 (15sec exp) for an example.  NA2 guider was
 usable other than the brightening in the middle.  The "mystery" object
 went away after about 100 frames (slowly faded)
 I noticed that all 4 load cells (ABC&T) were not really happy at Alt 50
 deg tonight.  Probably nothing more that we have been seeing over the
 past couple weeks but they were pretty unhappy.  I noticed "unhappiness"
 went away at high alt and came back a lower alt.
 01:07 Sliitviewer failed (well around there) while taking exposures
 (manual mode but not guiding) (froze).  They were issuing offsets.  FYI,
 they were doing non-sidereal rate tracking for asteroids (which is why
 the field stars move in the frames).
 02:09 DISslit guider locked up again (we were running in manual mode, and
 the observer was just inputting offsets manually) (froze)
 05:38 DISslit Guider failed again (froze).
 05:42 DISslit guider failed again (on ctrl click offset) (froze)
 05:46 DISslit guider failed again (froze)
 05:50 DISslit guider failed again (froze)
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
 PU05    D           I/S     18:02   18:36   DISslit camera hung
                                             Bad Slitmask file
                                             (510x510 instead of 512x512)
                                             due to work done earlier on
                                             SW.
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus      Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 17:40 DISslit     -119(-97)   1  52  3.9  6.4  4.9   5.5  4.5  --   1.2
 21:05 DISslit     -92(-120) -56  43  4.2  4.1  3.5   3.8  4.2  --   1.7
 21:07 NA2gdr   -7424(21575) -57  42  4.2  4.1  3.5   3.7  4.2  R    1.2
 00:03 DISslit     -95(-210) 139  60  2.8  2.5  2.0   2.1  2.3  --   1.5
 02:44 DISslit    -50(-200) -106  57  1.3  1.2  0.7   1.0  1.3  --   1.6
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:01    42    13     11   230   (SW)    325    clouds    none
     17:01    39    13     17   224   (SW)    478    cirrus    none
     18:01    39    12     14   241  (WSW)    501    cirrus    none
     19:01    39    11     15   234   (SW)    620    cirrus    none
     20:01    40    10     20   214   (SW)    701    cirrus    none
     21:01    39    10     22   247  (WSW)   1154    cirrus    none
     22:01    38    10     16   236   (SW)   1073    clear     none
     23:01    37     6     19   256  (WSW)    721    clear     none
     00:01    37     7     19   257  (WSW)    590    clear     none
     01:01    36    11     20   258  (WSW)    504    clear     none
     02:01    34    18     21   251  (WSW)    634    clear     none
     03:01    35    19     20   236   (SW)    520    clear     none
     04:01    34    20     18   237  (WSW)    533    clear     none
     05:01    34    20     12   254  (WSW)    561    clear     none
     06:01    33    19     16   245  (WSW)    565    clear     none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                              TELESCOPE STATUS
      Telescope drives operational. Current TCC version: 2.8.5
      Current TUI version: TUI 1.2