Date: Wed, 9 Sep 1998 06:47:53 -0600
From: Karen Gloria
Subject: 3.5-m obslog 980908
                         TUESDAY SEPTEMBER 8, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Maddison    Forsythe, Maddison,      GRIM2     9/8-9   20:43 01:10
            Marley, Stephens
Turner           Gloria               DIS       9/9    01:10 02:00
Engineering      Gloria              guider     9/9    02:00 05:19
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
NM07/S     20:43 01:10   0.5  3.9   0    0    0   0.1   0    0    0
PU01/S     01:10 02:00    -   0.8   0    0    0    0    0    0    0
EN01/S     02:00 05:19    -   3.3   0    0    0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
Dan Long was the observing specialist for the first half of the night.
The telescope was opened at 18:00 MDT.  The sky was mostly clear but
there was a stiff breeze out of the east.  This probably caused the
poor seeing.
The observers were Sarah Maddison, Kerry Forsythe, Denise Stephens and
Mark Marley for NM07, and myself for PU01 and EN01.
There were no problems with telescope or instrumentation, other than
occasional sudden, temporary focus changes observed with grim2.  The
rotator performed very well.  I didn't spot any runaways or over
slews.  I watched the rotator and guider cable from the observing
level for a while.  The bolts and washers cable guide appears to work
just fine.
(* means a trouble report has been issued or appended to)
			     OBSERVER COMMENTS
NM07 (Marley):  Everything worked, clear sky, seeing wasn't
great...veteran operator [Dan] came in after almost a year away from the
telescope and was great.
PU01 (Gloria): No problems, other than poor seeing.
EN01 (Gloria): I ran a 120 point pointing model.  Guider and telescope
performed well.  Initial analysis shows a little slop in altitude and
small systematic error in azimuth.  Must discuss with those more
familiar with t-point.
                                 FOCUS LOG
                             SEPTEMBER 8 1998
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El   #Temp    Dir MPH  filter  FWHM "
20:35  GRIM2   25(6827)  189  61 13.6/14.2   74  15  K f/10   0.73
21:05  GRIM2  -75(6848)  155  33 13.9/13.9   93  14  J f/10   0.83
22:10  GRIM2  -25(6870)  172  37 13.3/13.7   97  13  J f/10   1.3
01:25   DIS     0(6649)  208  57 12.8/12.6   82  19    r      1.8
02:10 guider 55850(6676) 227  49 11.9/12.5   75  15  R+ND2    1.7
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                             SEPTEMBER 8 1998
                                  Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust     Sky       Precip.
     16:01    71    --      9    80  (E)      471   ptly cldy    none
     17:01    61    35      7    87  (E)      523   ptly cldy    none
     18:01    61    35      9    83  (E)      445    clear       none
     19:01    58    36     12    83  (E)      417    clear       none
     20:01    57    36     11    74  (ENE)    527    clear       none
     21:01    57    36     12    89  (E)      510    clear       none
     22:01    56    38     18   108  (ESE)    525    clear       none
     23:01    56    39     18    88  (E)      534 ptchy hi clds  none
     00:01    55    41     21   114  (ESE)    535 ptchy hi clds  none
     01:01    55    39     20   123  (ESE)    515 ptchy hi clds  none
     02:01    54    40     16   105  (ESE)    505 ptchy hi clds  none
     03:01    52    44     15    83  (E)      537 ptchy hi clds  none
     04:01    52    --     10    85  (E)      528 ptchy hi clds  none
     05:01    51    43     17   106  (ESE)    547    clear       none
     06:01    51    42     13    91  (E)      577    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: 2.41a.
Current guide software version: GIm Ctrlv3.0b15.
-Karen