Date: Tue, 25 Jan 2005 07:07:25 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20050124
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Monday, January 24, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 K.Covey         K.Covey                NIC-FPS        --:--  --:--
 L.Walkowicz     L.Walkowicz            DIS            02:05  06:25
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW14/R      18:25  00:10   0   5.8   0    0    0    0    0    0    0
 UW13/R      00:10  06:06   0   1.9   0    0    0   4.0   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Humidity kept us closed all of first half and the start of second half.
 The dewpoint depression finally went below the closer limits and I was
 able to open around 2AM.  The NA2 filter wheel got lost on the first
 exposure I tried to guide on.  I re-homed it (after trying in vain
 Craig's new nudge commands for the wheel) and all was happy again.
 We noticed a quirk in the offsets for TUI from slitview when using
 absolute offsets for the first offset,  I submitted a PR on it.
 The guider also had stray light entering into it (moonlight most likely)
 that made a few guide frames difficult to guide on because of the wash.
 I think this was light reflecting off the baffle itself or indirectly
 off another surface (the moon was full and it was pretty bright in the
 dome and the telescope was maybe 20-30 degrees above it).
 Seeing was pretty decent all second half at about 1 arc sec off the
 guider.
                      ------- 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
 ---------------------------------------------------------------------
 02:11  DISslit     -250(517)  32  75   -0.8/0.2   310  24  none  1.0
 02:20  NA2gdr      29(31029)  24  76   -0.9/-0.1  307  18  clear 0.76
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    37    30     15   268  (W)            Pt. Cldy   none
     17:01    38    31     15   264  (W)            Pt. Cldy   none
     18:01    33    30     12   266  (W)            Pt. Cldy   humid
     19:01    33    31     12   267  (W)            Cloudy     humid
     20:01    33    32     18   270  (W)            Cloudy    Lt. Rain
     21:01    31    31     17   265  (W)            Cloudy     humid
     22:01    32    27     14   270  (W)            Pt. Cldy   humid
     23:01    31    27     16   300  (WNW)          Mst. Clr   humid
     00:01    30    28     14   304  (NW)           Mst. Clr   humid
     01:01    29    28      2   351  (N)            Mst. Clr   humid
     02:01    31    25     22   301  (WNW)          Mst. Clr   none
     03:01    31    24     18   300  (WNW)          Mst. Clr   none
     04:01    30    24     16   323  (NW)           Mst. Clr   none
     05:01    30    24     18   307  (NW)           Mst. Clr   none
     06:01    30    23      9   285  (WNW)          Mst. Clr   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 0.94b1