From: Russet McMillan
Subject: 3.5m Night Log 20050315
Date: Wed, 16 Mar 2005 06:17:02 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Tuesday, March 15, 2005
                                                          ACTUAL
  ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 -------------------------------------------------------------------
 S.Anderson      L.Homer,D.Haggard,      SPIcam         22:00  23:56
                 S.Anderson
 R.Covarrubias   R.Covarrubias           DIS            00:10  05:25
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS    DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B  USE   D    B
 ----------------------------------------------------------------------
 UW03/R      19:05  00:10   0   2.9   0    0   0.1  2.1  0    0    0
 UW06/R      00:10  05:19   0    0    0    0   5.1   0   0    0    0
   note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Low clouds and high humidity at sunset prevent us from opening right
 away.  The humidity remained around the limit until about 21:30,
 when it dropped precipitously.  We opened at 22:00 and got good data
 for the remainder of first half despite mediocre seeing.  Focus
 started out very negative and climbed asymptotically toward zero,
 which is winter-like behavior (duh!) rather than the recent spring
 focus oddities we've been seeing.
 Second half we had borderline high winds which caused lots of
 blowing snow at ground level, but there was no sign of anything
 blowing into the dome (except a little which came in when I first
 opened).  Seeing puffed up to over 3 arcsec, but everything worked
 just fine aside from one hangup of the slitviewer control program,
 solved with killslit.
                       ------- 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
 ---------------------------------------------------------------------
 22:18 SPIcam      -550(596)   39  76  -9.6/-6.7  30   21   g'    1.97
 22:24 NA2gdr      -3742(33257)36  77  -9.4/-7.0  37   20   R     1.52
 00:16 DISslit     -75(290)    -14970  -9.1/-9.5  42   20   -     1.6
 00:21 NA2gdr      -4836(26163)-14669  -9.2/-9.6  35   26   ND2   1.23
                 ------------- WEATHER LOG ----------------
                                    Wind                      Precip.or
      Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    19    16     10   340  (NNW)    240  mstly cldy   none
     17:01    17    14     19   319  (NW)     117  mstly cldy   none
     18:01    16    13     12    29  (NNE)     81   ptly cldy   none
     19:01    16    11     15    38  (NE)      60   ptly cldy   none
     20:01    15    11     19    37  (NE)      51   mstly clr   none
     21:01    13    10     10    56  (NE)      45    clear      none
     22:01    15     5     18    34  (NE)      35    clear      none
     23:01    15     1     17    35  (NE)      44    clear      none
     00:01    16     2     24    47  (NE)      75    clear      none
     01:01    16     0     27    44  (NE)     225    clear      none
     02:01    14     1     28    58  (ENE)    255    clear      none
     03:01    17    -4     13    33  (NNE)    386    clear      none
     04:01    16    -5     14    29  (NNE)    418    clear      none
     05:01    16    -8     12    60  (ENE)    466    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 Remark version: 2.85b
       Current TCC version: 2.7.2  Current TUI version: TUI 0.94