From: Russet McMillan
Subject: 3.5m Night Log 20010324
Date: Sun, 25 Mar 2001 06:06:38 -0700 (MST)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                       Saturday, March 24th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 R.Kron       R.Kron, B.Wilhite        SPIcam          19:12  05:45
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 UC02/O      19:11 05:07    0    0    0    0   9.9   0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
1st Half Observing Specialist: Camron Hastings
    The thick yet uniform cirrus delayed the first half program, but we
were open at 1700 to cool. Startup went smooth and no troubles other than
weather.
2nd half Observing Specialist: Russet McMillan
Second half continued cirrusy, although it thinned almost to nothing
for a little while before coming back and thickening.  Seeing ranged
from 0.6 to 1.2 arcseconds.  I had to change the guider binning to
work through best of the seeing.  As on the last few nights, I was
able to use the guider successfully to predict focus changes (from 0
to 60 and back down again) without having to pause for actual focus
runs.  This might mean the guider has some promise for a closed-focus
system, although currently the focus can only be adjusted between
science exposures.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 19:25  SPIcam    +100(1057)  222 46   5.6/5.9    233   0   i'    0.66"
 19:27  NA2 Gdr   +800(1054)  223 46   5.6/5.9    234   1  none   0.82"
 21:46  NA2 Gdr   -220(872)   -15 55   4.9/4.9    118   0  none   0.98"
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    45    32      2   249  (WSW)    468   Cirrus     None
     17:01    46    32      4   263  (W)      479   Cirrus     None
     18:01    41    32      1    90  (E)      616   Cirrus     None
     19:01    41    32      1   100  (E)      708   Cirrus     None
     20:01    42    25      0   242  (WSW)    559   Cirrus     None
     21:01    40    27      0   161  (SSE)    713   Cirrus     None
     22:01    42    24      0   180  (S)      483   Cirrus     None
     23:01    42    24      0   213  (SSW)    481   cirrus     none
     00:01    42    22      5   244  (WSW)    460   cirrus     none
     01:01    42    24      5   216  (SW)     508   cirrus     none
     02:01    43    20      5   233  (SW)     396   cirrus     none
     03:01    43    18      5   211  (SSW)    381   cirrus     none
     04:01    42    19      5   252  (WSW)    433  ptly cldy   none
     05:01    42    20      5   266  (W)      567  ptly cldy   none
     06:01    39    21      7   265  (W)      646  ptly 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: 2.62. Current
  guide software version: GIm Ctrlv3.0b27. Current TCC version: 2.5.1
  Current MC version: v1_7_3.