Date: Fri, 21 Jan 2000 07:15:29 -0700 (MST)
From: Karen Loomis
Subject: 3.5-m obslog 2000120
                         WEDNESDAY JANUARY 20, 2000
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Chanover       Chanover, Hillman      AOTF      1/20   18:21 23:58
               Meyers, Kuehn
Krisciunas     Krisciunas            GrIm2      1/21   00:23 01:10
Wyder          Wyder                SPIcam      1/21   01:10 06:08
 INST        SCHEDULED     WEATH     EQUIP      OBS    DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
NM02/S     18:21 00:10    -    0    -    0    -   5.8   0    -    0
UW07/R     00:10 01:10    -    0    -    0    -   1.0   0    -    0
UW06/R     01:10 06:08    -    0    -   0.6   -   4.4   0    -    0
(note: times listed include instrument change time)
                              ACTIVITY LOG
(* means a trouble report has been issued or appended to)
1st half observing specialist: Deglman
The NA2 guider has been removed because of an internal coolant leak.*  The
telescope was opened at 17:05 under clear skies.  Flat fielding was done
for NM02.  The program was performed with AOTF.  "Primary  oscillation"
was once again noticed immediately after a slew.  DIMM was reporting
between 1-1.5 arcseconds.
2nd half observing specialist: Loomis
Kevin Krisciunas observed with GrIm2 for UW07 and Ted Wyder observed
with SPIcam for UW06.  We saw occasional small scale image motion (on
the order of a few arcsec).  These became more frequent towards morning.
                            OBSERVER COMMENTS
                                FOCUS LOG
                             JANUARY 20 2000
                                                 Wind
Time   Inst        Focus     Az  El   #Temp    Dir  MPH  filt  FWHM "
18:15  AOTF    +250(489)    182  81  5.2/6.7   237  13  1.99mic  ?
19:38  AOTF    +250(464)    196  60  5.0/5.1   269  12    K      ?
00:15  GrIm2   -40(1172)    303  24  5.7/5.5   291  24    K'    1.3
01:20  SPIcam  -50(837)     143  51  4.9/4.3   279  12    V     0.89
#First temp is air, second temp is telescope.
                                 WEATHER
                             JANUARY 20 2000
                               Wind
     Time   Temp F Dewp F  MPH  Direction    Dust      Sky      Precip.
     16:01    45    16     12   281  (W)      839     clear      none
     17:01    43    15      8   268  (W)      858     clear      none
     18:01    41    15     13   238  (WSW)    899     cirrus     none
     19:01    41    16     14   261  (W)      994     clear      none
     20:01    41    17     15   264  (W)     1177     clear      none
     21:01    42    16     15   270  (W)     1064     clear      none
     22:01    43    19     16   273  (W)      632     clear      none
     23:01    42    18     21   282  (WNW)    661     cirrus     none
     00:01    42    18     22   288  (WNW)    742     cirrus     none
     01:01    42    17     24   294  (WNW)    706     clear      none
     02:01    41    18     18   276  (W)      823     clear      none
     03:01    41    18     15   273  (W)      853     clear      none
     04:01    41    18     11   305  (NW)     945     clear      none
     05:01    40    18     21   282  (WNW)    961     clear      none
     06:01    40    18     13   278  (W)      771     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
> 1 micron per 0.1 cu. ft.
                             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: 2.55b5.
Current guide software version: GIm Ctrlv3.0b27.  Current TCC version
is 2.2.2.
- Frank Deglman, Karen Loomis