Date: Tue, 20 Jan 1998 04:44:21 -0700 (MST)
From: Tia Hoyes
Subject: 3.5m obslog 980119
                        MONDAY   JANUARY 19, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Richards         DIS       1/19   19:00 00:00
Corson           DIS       1/19   00:30 02:10
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
EN01/S     18:50 05:38   2.0  2.1  3.1  3.6   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 opened at 22:00.  Engineering tests were being done earlier,
the sky was overcast until this time.  Charles Corson and I did some tests
on the Drift Scan commands.
Gordon Richards and Alan Uomoto tested the new gratings they installed.
Charles and I tested the ability of the telescope to do very small offsets.
The see was so horrendous (2.8 arcsec) and clouds where coming in, we decided
to close at 2:10.
I took calibrations for Gordon at the end of the evening.
                               FOCUS LOG
                           JANUARY  19, 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   19,  1998
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    39    14     14   265  (W)      173   cirrus         none
     17:01    37    14     20   217  (SW)     269 mostly cloudy    none
     18:01    37    16     21   250  (WSW)    317   cloudy         none
     19:01    38    15     19   264  (W)      241  overcast        none
     20:01    38    15     25   236  (SW)     253 thick cirrus     none
     21:01    37    14     22   246  (WSW)    272   cirrus         none
     22:01    37    14     18   250  (WSW)    281  clearing        none
     23:01    36    14     23   238  (WSW)    299 mostly clear     none
     00:01    35    17     20   266  (W)      363 mostly clear     none
     01:01    35    15     16   267  (W)      331    cloudy        none
     02:01    34    15     12   255  (WSW)    304 thick cirrus     none
     03:01    34    12     16   268  (W)      301 thick cirrus     none
     04:01    32    14     15   257  (WSW)    305 thick 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 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