From: Russet McMillan
Subject: 3.5m Night Log 20050112
Date: Thu, 13 Jan 2005 06:53:24 -0700 (MST)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Wednesday, January 12, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 S.Bates         J.Holtzman             DIS            16:55  23:30
 N.Chanover      N.Chanover,B.Recchie,  SPIcam         23:40  00:50
                 J.Norwood                             03:25  06:50
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 NM02/R      18:14  00:10   0    0    0    0   4.1  1.9   0    0    0
 NM01/O      00:10  06:09  2.6   0    0    0   3.4   0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: J.Dembicky
 No problems 1st half.
 2nd Half Observing Specialist: R.McMillan
 Second half was clear, with seeing varying from excellent to poor.
 We started out with borderline humidity, which crept upward until
 the dewpoint was too close to the temperature of the cold telescope,
 so we closed for a while until it dropped again.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SEGDFVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                 ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 18:09  DISslit     -375(225)  77  56   -6.2/-4.6  340  14  none   1.9
 18:20  NA2gdr   -6275(26825)  75  58   -6.2/-4.9   39  12  R+ND2  1.3
 23:51 SPIcam      50(641)     167 78  -7.1/-7.6  18   18   R      0.93
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    22    11     27   302  (WNW)          Cloudy     none
     17:01    22    12     11   327  (NNW)          Cloudy     none
     18:01    21    13     22   356  (N)           Pt. Cldy    none
     19:01    21    14     11     1  (N)           Mst. Clr    none
     20:01    21    14     12     1  (N)           Mst. Clr    none
     21:01    20    13     11    26  (NNE)         Mst. Clr    none
     22:01    20    14      6    47  (NE)           Clear      none
     23:01    20    14      7    34  (NE)           Clear      none
     00:01    19    14     16    16  (NNE)          clear      none
     01:01    19    14     12    17  (NNE)          clear      none
     02:01    19    14     10    20  (NNE)          clear      none
     03:01    18    12     15    16  (NNE)          clear      none
     04:01    18    12     18    27  (NNE)          clear      none
     05:01    20     3     21    21  (NNE)          clear      none
     06:01    17     9     16    20  (NNE)          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.
     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 0.932