From: Russet McMillan
Subject: 3.5m Night Log 20030227
Date: Fri, 28 Feb 2003 05:45:51 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                        Thursday, February 27, 2003
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START FINISH
 -------------------------------------------------------------------
 R.Walterbos   R.Walterbos, C.Chiappini DISII.5        17:30 19:30
 D.Lamb        R.McMillan               SPIcam         --:-- --:--
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 -------------------------------------------------------------------
 NM02/R      18:52  00:00  4.5   0    0    0   0.6   0    0    0    0
 UC01/O/D    00:00  05:39  5.4  0.2   0    0    0    0    0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: J.Dembicky
 I started cooling the enclosure with the exhaust fans around 16:45
 and opened the enclosure around 18:40 after the first half observers
 finished their lamp cals.  The skies were clear (for a change) but it was
 not to last.  By 19:00 clouds started appearing on the cloud cam and by
 19:30 we were pretty much under thick cloud cover.  Lt. flurries started
 around 21:00 but didn't last too long.  The humidity started creeping up,
 ever so slowly, to above 80% by 23:20.
 2nd half Observing Specialist: R.McMillan
 Humidity didn't drop below the limit from midnight until morning
 twilight.
                        ------- 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
 ---------------------------------------------------------------------
 18:55  DISslit      -350(-66) 64  26   -3.6/0.5   190  10  none  1.37
 18:58  NA2gdr     1322(42322) 64  26   -3.6/0.4   205  13    R   1.20
               --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01                 10   251  (WSW)    411   Pt. Cldy   none
     17:01    31    15     13   250  (WSW)    371   Mst. Clr   none
     18:01    27    18     17   203  (SSW)    414   Clear      none
     19:01    26    19     12   192  (SSW)    502   Mst. Clr   none
     20:01    27    20     17   223  (SW)     506   Cloudy     none
     21:01    27    20     17   220  (SW)     507   Cloudy     flurries
     22:01    27    20     24   244  (WSW)    451   Cloudy     none
     23:01    27    21     24   263  (W)      425   Cloudy     none
     00:01    25    22     24   264  (W)      309   cloudy     fog
     01:01    24    23     19   280  (W)     1938   cloudy     fog
     02:01    23    22     17   261  (W)     1559   cloudy     fog
     03:01    22    20     19   269  (W)      367  mstly cldy  none
     04:01    21    19     18   270  (W)      420  mstly cldy  none
     05:01    21    19     20   285  (WNW)    352  mstly 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.
                               TELESCOPE STATUS
   Primary, secondary, and tertiary mirrors in place and collimated.
   Primary support system operational. Mirror ventilation system in
   place.
   Telescope drives operational. Current Remark version: 2.82
   Current guide software version: GIm Ctrlv4.1b2
   Current TCC version: 2.6.8