From: "N.C. Hastings"
Subject: 3.5m Night Log 990630
Date: Thu, 1 Jul 1999 05:14:12 -0600
                 Apache Point Observatory, Sunspot, NM
                       Wednesday, June 30th, 1999
                     3.5-meter Night Observing Log
                               Actual
----------------------------------------------------------------------
ASTRONOMER     OBSERVER(S)       INSTRUMENT    DATE      START  FINISH
----------------------------------------------------------------------
UWGRB          A.Diercks          GrIm II      6/30-31   20:30  00:10
A.Diercks      A.Diercks          GrIm II      6/31      00:10  01:10
D.Leeber       D.Leeber           GrIm II      6/31      01:10  04:45
                      Observation Time Breakdown
----------------------------------------------------------------------
 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY   NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
DD01/R    21:57  00:10     -    0    -    0    -   2.2   0    -    0
UW01/R    00:10  01:10     -    0    -    0    -   1.0   0    -    0
NM05/R    01:10  04:17     -    0    -    0    -   3.1   0    -    0
              -------------- Activity Log --------------
Observing Specialist: N.C.Hastings
    The telescope was opened at 17:30 under photometric skies. There
were no problems to report and all observing went very smoothly...
There was an addendum to last nights issues with the glycol leak in
the guider system. Today I found more leaks and the level is at 50%. I
cleaned the mirror again, which this time had liquid glycol still on
them. When I cleaned one mirror surface some aluminum came off. John
Davis knows about this and will look in to it. I placed a 'coolant
diaper' on the air separator block to absorb any further dripping
tonight.
                              FOCUS LOG
                           June 30th 1999
                  Best    Telescope    Temp      Wind          Seeing
Time  Instrmnt   Focus      Az  El   Air/Truss  Dir MPH  filter FWHM"
---------------------------------------------------------------------
20:40 GrIm II  -075(7125)  240  59  21.9/23.2   239  08  f/5-K  1.51"
20:55 Guider   -091(7121)  242  57  21.6/23.1   186  10  R+ND2  1.03"
21:05 GrIm II  -150(7047)  246  55  21.3/22.8   212  09  f/5-J  0.78"
                              WEATHER LOG
                            June 30th 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    78    31     10   259  (W)      597   Photometric  None
     17:01    79    31      9   272  (W)      655   Photometric  None
     18:01    80    37     15   280  (W)      655   Photometric  None
     19:01    77    34      8   268  (W)      609   Photometric  None
     20:01    73    29      7   266  (W)      688   Photometric  None
     21:01    71    27     13   216  (SW)     790   Photometric  None
     22:01    71    29     14   209  (SSW)    823   Photometric  None
     23:01    70    30     15   222  (SW)     909   Photometric  None
     00:01    70    29      7   236  (SW)     887   Photometric  None
     01:01    69    30      2   215  (SW)     844   Photometric  None
     02:01    69    29      9   241  (WSW)    779   Photometric  None
     03:01    69    30      2   256  (WSW)    798   Photometric  None
     04:01    70    30      6   258  (WSW)    876   Photometric  None
note: the wind was coming from the azimuth listed.  The convention
used is north=0 degrees, east=90 degrees. The dust count is for the
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: 2.5.5b5
Current guide software version: GIm Ctrl v3.0b27
-  NCH