Date: Sun, 1 Apr 2001 06:52:12 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20010331
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                       Saturday, March 31th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 P.McGehee     P.McGehee               DIS-High        18:30  00:07
 C.Gronwall    C.Gronwall              DIS-Med         00:07  06:48 MDT
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 DD04/O      19:17 00:10    0    0    0    0    0   4.9   0    0    0
 JH05/R      00:10 05:57    0    0    0    0   3.8  1.0   0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
          1st & 2nd Half Observing Specialist: Jack Dembicky
 Turned on enclosure fans at 16:45.  Louvers opened at 17:45. Opened
 enclosure at 18:50.
 Seeing started out sub arc sec at the start of the night but gradually
 moved upwards to a little over 1 arc sec.  I monitored the focus and
 adjusted it at various times during the first half of the night
 exposures, to keep the instrument in relatively decent focus.  During the
 2nd half of the night the seeing improved with it staying between 0.7 -
 1.1 arc sec, depending on position, for most of the night.
 No auroa were visible to the naked eye tonight, but a few brighter
 sky lines were seen in some of the DIS spectra taken tonight.  Not as
 intense as last night, but still present.
 Everything ran smoothly again tonight.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 19:08  DIS-slit  -120(780)   151 58    6.8/8.7   271   7  none   0.87
 19:12  NA2gdr   147(57197)   151 58    6.8/8.7   266   7  red    0.93
 22:52  DIS-slit    30(871)   139 50    6.8/6.7   236  14  none   1.18
 00:15  DIS-slit    50(801)  -157 82    6.5/6.3   209  11  none   0.81
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:02    46     8     13   338  (NNW)    544    clear    none
     17:02    48     7      1   292  (WNW)    542    clear    none
     18:02    46     8      8   316  (NW)     532    clear    none
     19:02    45    11      9   273  (W)      500    clear    none
     20:02    45    11      8   251  (WSW)    573    clear    none
     21:02    45    12     11   225  (SW)     595    clear    none
     22:02    45     9     13   232  (SW)     584    clear    none
     23:02    45    10     12   226  (SW)     589    clear    none
     00:02    44    10     14   216  (SW)     580  mst. clear none
     01:02    43    10     12   225  (SW)     914  mst. clear none
     03:02    44     9     12   235  (SW)     883    clear    none
     04:02    43     9     16   238  (WSW)    787    clear    none
     05:02    42    10     14   218  (SW)     863    clear    none
     06:02    43    11     12   214  (SW)     723  lt. cirrus 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.