Subject: 3.5m Night Log 20050320
Date: Mon, 21 Mar 2005 05:48:50 -0700 (MST)
From: bketzeba@apo.nmsu.edu (Bill Ketzeback)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Sunday, March 20, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 E.Turner        B.Ketzeback            SPIcam         22:00  23:00
 M.Drosback      M.Drosback             Echelle        00:30  05:45
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 PU03/W      19:08  00:10   0   4.0   0    0    0   1.0   0    0    0
 UC04/R      00:10  05:12   0   0.3   0    0   1.1  3.7   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 The first half of the night was plagued again with high humidity and thick
 clouds until a little before 2200. I was able to observe one Lens target
 under poor seeing conditions until the clouds returned and seeing got so bad
 that I had no other targets. I gave the telescope to the second half observer
 about 30 minutes early to start cals while we waited for the clouds to thin
 out again. At 0030, the observer was able to get on a target. Clouds continued
 to be bothersome for the remainder of the night however not to the extent we
 needed to close. By 0500, the humidity started to creep high enough that the
 question of which would occur first, twilight or the dew point depression
 limit. Twilight won.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SEGDFNVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                 ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 22:19 SPIcam      0(960)      139 69  -0.8/0.7   286  15   r'    1.73
 22:22 NA2gdr      0(37000)    140 69  -0.8/0.5   289  20   R     1.52
 23:32 Echelle     9(-66)      -11970  -1.4/-1.3  289  7    ND2   2.7
 04:15 Echelle     444(393)    184 34  -4.1/-3.7  61   4    nd3   2.8
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    37    25     22   245  (WSW)    576   cloudy    none
     17:01    37    24     22   243  (WSW)    517   cloudy    none
     18:01    37    21     29   254  (WSW)   2467   cloudy    none
     19:01    36    22     32   265  (W)     1611   cloudy    none
     20:01    34    24     22   263  (W)     1694   cloudy    none
     21:01    33    24     20   286  (WNW)   1946   cloudy    none
     22:01    31    11     12   272  (W)      607   clear     none
     23:01    30     8     18   281  (W)      562 mstly cldy  none
     00:01    29    11     13   298  (WNW)    726 mstly cldy  none
     01:01    27    16     11   293  (WNW)    838 prtly cldy  none
     02:01    27    17     10   344  (NNW)    854 prtly cldy  none
     03:01    25    17     10   308  (NW)     923 prtly cldy  none
     04:01    25    18     12   328  (NNW)    877 prtly cldy  none
     05:01    24    18      0   212  (SSW)    898 prtly cldy  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.
     Note: The Tower Dust counter appears to be down at this time
                              TELESCOPE STATUS
      Telescope drives operational. Current Remark version: 2.85b
      Current TCC version: 2.7.2  Current TUI version: TUI 0.94