Date: Thu, 24 Feb 2005 05:47:11 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20050223
                        Apache Point Observatory
                        3.5m Telescope Night Log
                      Wednesday, February 23, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 M.Strauss       M.Strauss              NIC-FPS        --:--  --:--
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 PU05/R      18:49  05:43   0  11.0   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Closed all night due to clouds, humidity, and snow.
 Enclosure roof heaters left on since we were right at freezing and I
 wanted to try to melt some of the ice/snow. I turned them off at the end
 of the night since I wasn't sure if we were going to get sun or more snow
 and the temps were -4.3C, so they probably aren't doing much now.
 About 1-2 inches of snow fell after 4AM.
 I also found the rotator at about -6 degrees when I dis-mounted the
 instrument tonight. I commanded it to 0 when I closed up.  Perhaps I
 accidently rotated it when I took the instrument off tonight???  The TCC
 reported it at -6 deg when I came back downstairs so I am not sure what
 happened.  It was not commanded to -6 degrees while the motors were
 active.
                      ------- 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
---------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    32    31      4   266  (W)      --    Cloudy   Lt. Snow
     17:01    33    29      7   268  (W)      --    Cloudy     none
     18:01    31    29      5   340  (NNW)    --    Cloudy     none
     19:01    32    28     11   235  (SW)     --    Cloudy     none
     20:01    32    25     14   210  (SSW)    --    Cloudy    Lt. Snow
     21:01    34    19      9   258  (WSW)    --    Cloudy    Lt. Snow
     22:01    35    18      6   266  (W)      --    Cloudy     none
     23:01    34    17      3   264  (W)      --    Cloudy     none
     00:01    29    26      1   101  (E)      --    Cloudy    Lt. Snow
     01:01    29    27      9    81  (E)      --    Cloudy     none
     02:01    27    25     14    67  (ENE)    --    Cloudy    Lt. Snow
     03:01    27    25      9    82  (E)      --    Cloudy    Lt. Snow
     04:01    26    24     20    73  (ENE)    --    Cloudy    Lt. Snow
     05:01    24    23     15    73  (ENE)    --    Cloudy      Snow
     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 0.94b2