Date: Fri, 5 Mar 1999 05:38:43 -0700 (MST)
From: Russet McMillan
Subject: 3.5m Night Log 990304
                 Apache Point Observatory, Sunspot, NM
                       Thursday, March 4th, 1999
                     3.5-meter Night Observing Log
                                Actual
----------------------------------------------------------------------
ASTRONOMER     OBSERVER(S)       INSTRUMENT     DATE     START  FINISH
----------------------------------------------------------------------
C.Stubbs       C.Hastings        SPIcam        3/04      19:25  20:25
E.Turner       C.Hastings        SPIcam        3/04-5    20:25  00:00
A.Diercks      A.Diercks         GrIm II       3/05      00:00  01:00
S.Kent         S.Kent            GrIm II       3/05      01:00  04:05
A.Diercks      A.Diercks         GrIm II       3/05      04:05  05:05
----------------------------------------------------------------------
 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY   NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
UW02/S    19:25  20:25    1.0   0    0    0    0    0    0    0    0
PU04/S    20:25  00:00    0.1  3.5   0    0    0    0    0    0    0
UW08/R    00:00  01:00     -   1.0   -    0    -    0    0    -    0
UC06/R    01:00  04:05     -   4.1   -    0    -    0    0    -    0
UW08/R    04:05  05:05     -    0    -    0    -   1.0   0    -    0
               -------------- Activity Log --------------
1st Half Observing Specialist: N.C.Hastings
First half was obscured by clouds and dust. No observing took place.
2nd Half Observing Specialist: R.McMillan
Steve Kent donated the first hour of second half to Alan Diercks.  It
was lost to dust anyway.  After 03:30, the dust finally went down and
stayed down, and we opened at 04:00 for an hour until twilight.
                               FOCUS LOG
                             March 4th 1999
                  Best    Telescope    Temp      Wind          Seeing
Time  Instrmnt   Focus      Az  El   Air/Truss  Dir MPH  filter FWHM"
---------------------------------------------------------------------
04:10  GRIM   -580(5728)   145  61   0.8/1.8    238  18  J(f/5) 1.3
                              WEATHER LOG
                             March 4th 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    44     5     17   265  (W)     1246    cloudy      none
     17:01    42     4     20   265  (W)     1226    cloudy      none
     18:01    42     5     11   262  (W)     1534    cloudy      none
     19:01    42     5     16   256  (WSW)   1845    cloudy      none
     20:01    42     5     26   252  (WSW)   1689   mstly cldy   none
     21:01    41     6     13   255  (WSW)   4874    cirrus      none
     22:01    38     7     16   256  (WSW)   4296    cirrus      none
     23:01    38     7     11   276  (W)     3756    cirrus      none
     00:01    38     8     11   283  (WNW)   3419    cirrus      none
     01:01    37     8      7   270  (W)     5757    cirrus      none
     02:01    36     9     13   277  (W)     5729    cirrus      none
     03:01    35    12     14   265  (W)     2769    cirrus      none
     04:01    33    13     11   238  (WSW)   1863    cirrus      none
     05:01    33    14     10   265  (W)     1426    cirrus      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: 2.54b4
Current guide software version: GIm Ctrl v3.0b 17.out
- NCH, RM