Date: Sat, 5 May 2001 06:17:24 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20010504
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                         Friday, May 4th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 D.York        K.Billings              SPIcam          --:--  --:--
 P.Skody       P.Skody, S.Raymond      DIS-high        21:50  05:28
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 UC06/R      19:46 20:46    0    0    0    0    0    0    0    0    0
 UW06/R      20:46 05:14    0   1.1   0    0    0   7.4   0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: Jack Dembicky
 A dust event at 18:30 prevented me for turning on the cooling
 fans/opening louvers.  We also had overcast skies until sunset when the
 clouds evaporated.  I opened the enclosure at 19:50 with a few remaining
 clouds in the N, but clearing nicely.
 I focused SPIcam for Adler at 20:23 and as soon as I turned the
 instrument over to them, the dust levels shot past the closure limits and
 had to close the enclosure before Adler could even get one image.
 Opened again at 21:50 and focused the instrument.  Seeing was about 1.5
 arc sec when we opened and improved to around 1 arc sec by midnight.  The
 seeing varied between 1 and 1.5 arc sec for most of the 2nd half.
 Everything ran smoothly tonight
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 20:23   SPIcam   -150(741)   110 64   3.3/6.0    279  20    R    1.13
 22:00   DISslit  -150(531)    73 72   2.2/4.1    293  18  none   1.44
 22:05   NA2gdr   -775(55224)  73 72   2.1/3.9    291  17  none   1.56
 00:30   DISslit  -10(571)    160 56   1.0/1.1    301  15  none   1.12
 02:31   DISslit   30(591)     15 59   1.2/0.8    289  10  none   1.32
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    46     8     23   273  (W)     2348     ?         ?
     17:01    44     8     19   251  (WSW)   2048     ?         ?
     18:01    44     9     24   269  (W)     1982  Mst. Cldy   dust
     19:01    41     4     26   271  (W)     2068   Pt. Cldy   none
     20:01    39     2     25   249  (WSW)   2086   Pt. Cldy   dust
     21:01    37     4     14   268  (W)     3115   Clear      dust
     22:01    36     4     14   283  (WNW)   1351   Clear      none
     23:01    35    11      6   348  (NNW)   1607   Clear      none
     00:01    34    10     18   315  (NW)    1038   Clear      none
     01:01    34    10     16   324  (NW)    1096   Clear      none
     02:01    35     9      9   275  (W)     1186   Clear      none
     03:01    34     9     12   267  (W)     1254   Clear      none
     04:01    34     9     11   266  (W)     1188   Clear      none
     05:01    33    10      9   266  (W)     1129   Clear      none
     06:01    31    11     11   247  (WSW)   1098   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
  Primary, secondary, and tertiary mirrors in place and collimated.
  Primary support system operational. Mirror ventilation system in place.
  Telescope drives operational. Current Remark version: 2.62. Current
  guide software version: GIm Ctrlv3.0b27. Current TCC version: 2.5.1
  Current MC version: v1_7_3.