Date: Fri, 13 Mar 1998 06:18:22 -0700 (MST)
From: Karen Gloria
Subject: 3.5-m obslog 980312
                         THURSDAY MARCH 12, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Williams       GRIM2    3/12-13  19:31 04:54
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
NM12/S     19:31 04:54    -   9.4   -    0    -    0    0    -    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
Charles Corson was the observing specialist for the first half of the
night.  He reports that pointing was sometimes sporadic.  The dust
counts were kind of high, although there was almost no wind and no
accumulation of dust on surfaces outside.  GRIM2 didn't hang on any of
the many exposure sequences that were run.  The seeing was very good
all night.  The observers were Tom Williams (UNM) and Randy Grashuis
(UNM).
			     OBSERVER COMMENTS
(NM12) - "Excellent seeing all night - instrument performed without incident:
commend and time all around.  Operators were efficient and unobtrusive
but helpful.  All in all an exceptional night of observing for us.  It
appears that we were able to obtain the SNR wanted with a number of
our faintest stars (K ~ 17.1 -> 17.4)."
                                FOCUS LOG
                              MARCH 12 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El   #Temp    Dir MPH  filter  FWHM "
18:45  GRIM2 + 90(6502)   38  58 +2.7/+5.2  270  3     J     0.62
20:35  GRIM2 +185(6490)   32  60 +1.0/+2.7  215  8   K-short 0.60
22:15  GRIM2 +150(6450)   90  44 +0.3/+1.1  185  6     J     0.8
23:20  GRIM2 +150(6412)   55  35 +0.5/+1.0  195  8   K-short 0.55
23:20  GRIM2 +120(6367)   55  35 +0.5/+1.0  195  8     J     0.8
01:50  GRIM2 + 70(6212)  123  82 +0.7/+0.0  240  1     J     0.65
02:25  GRIM2 - 20(6197)  142  53 +0.7/+0.0  259  3     J     0.8
04:20  GRIM2 - 70(6151)  246  51 +1.1/-0.2  296  4   K-short 0.7
04:30  GRIM2 - 50(6163)   19  60 +1.1/-0.1  322  6     J     0.7
04:45  GRIM2 - 70(6200)  245  43 +1.2/-0.1  314  7     J     0.7
05:05  GRIM2 - 50(6166)  265  54 +1.2/-0.1  265  2     J     0.7
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                              MARCH 12 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust     Sky       Precip.
     16:01    39    18      4   275  (W)     1063    clear       none
     17:01    38    19      7   253  (WSW)   1016    clear       none
     18:01    35    18      0   181  (S)     1139    clear       none
     19:01    37    14      1   290  (WNW)    590    clear       none
     20:01    35    13      2   183  (S)     1310    clear       none
     21:01    31    16      6   157  (SSE)   1214    clear       none
     22:01    33    16      1   163  (SSE)   1248    clear       none
     23:01    35    13      3   187  (S)     1355    clear       none
     00:01    32    21      5   193  (SSW)   1494    clear       none
     01:01    32    25      5   191  (S)     1279    clear       none
     02:01    35    17      1   276  (W)     1621    clear       none
     03:01    34    68      4   262  (W)     1431    clear       none
     04:01    34    21      4   335  (NNW)   1504    clear       none
     05:01    35    20      3   335  (NNW)   1376    clear       none
     06:01    36    13      6   280  (W)      972    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: 2.39.
Current guide software version: GIm Ctrlv3.0b11.
-Karen