Date: Thu, 22 Jan 1998 05:10:27 -0700 (MST)
From: Tia Hoyes
Subject: 3.5m obslog 980121
                        WEDNESDAY   JANUARY 21, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Kron             DIS      1/21   ----- -----
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UC06/R     18:51 05:38    0    0   6.9  3.9   0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
The telescope was not opened this evening due initially to snow.  The humidity
was high all night, and fog kept blowing in.  Gordon Richards and I went up
to the enclosure roof at 00:00, and found about 1 inch of powdery snow all over
the roof.  Also, at periodic intervals, it began snowing briefly.  I felt
that with the weather so unstable and the blowing snow, it was unsafe to open.
Unfortunately, Bob Nichol and Brad Holden waited until 3:00 to give up on
any chances of opening.
                               FOCUS LOG
                           JANUARY  21, 1998
                Best    Telescope            Wind                 Seeing
Time   Inst     Focus    Az   El   Temp#     Dir  MPH     filter   FWHM "
---NO FOCUS DATA---
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
                            JANUARY   21,  1998
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    26    25     10   270  (W)      525   overcast     flurries
     17:01    26    26      6   263  (W)     2019   overcast     flurries
     18:01    26    25      8   326  (NW)    1762   overcast     flurries
     19:01    25    24      1     0  (N)      418   overcast       none
     20:01    24    24     10    32  (NNE)    276   overcast     flurries
     21:01    24    23      5   354  (N)      223   overcast       none
     22:01    23    21      5    18  (NNE)    365   overcast       none
     23:01    23    21     11   358  (N)      348   clearing       none
     00:01    23    19     10   359  (N)      335   clearing       none
     01:01    24    19     16     4  (N)      379  mostly clear  flurries
     02:01    23    20     12   356  (N)      340  mostly clear    none
     03:01    23    18      8   344  (NNW)    349  mostly clear    none
     04:01    23    16      9    20  (NNE)    440  mostly clear    none
     05:01    23    16     16     8  (N)      476  mostly 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: 2.36
Current guide software version:GIm Ctrlv3.0b11.
-Tia