Date: Wed, 4 Jun 1997 06:05:50 -0600 (MDT)
From: Tia Hoyes
Subject: 3.5m obslog 970603
                          TUESDAY   JUNE  3, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Turner          DIS       6/03   21:15 22:28
Hoopes          DIS       6/03   22:28 00:35
Watson         GRIM2      6/04   00:50 05:41
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
PU01/O     21:48 22:28   0.7   0    0    0    0    0    0    0    0
NM07/O     22:28 00:59    0    0   2.3   0   0.2   0    0    0    0
NM06/R     01:00 04:15   0.8   0   2.5   0    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 21:15.  Charles Corson and I began obtaining
a focus sequence for the Lens Monitoring.  Earlier in the evening, there was
a dramatic jump in humidity and dust particles, so this deterred us from
obtaining a steady focus.  During PU01, we had to change the focus three
times.  The seeing was between 1.8-2.7 arcsecs.  We worked on 0957, and did
the best we could given the conditions.
Charles Hoopes and Nichole King were on site for the NM07 run.  They
obtained some dome flats and skyflats prior to the Lens Monitoring run.
When they began their observing at 22:28, the elevation remap was lost,
causing the axis to runaway.  Charles decided to remap the elevation, and
during this time, the telescope had to be closed due to the dust count being
well over 1750microns.  This condition persisted, and we noted large amounts
of pollen in the air and on the cloud scanner.  At approximately 00:30, the
humidity became very high.  It was well over closure conditions, so I did
not open until 3:30.
Alan Watson used GRIM for the NM06 run.  The skies were murky, and the focus
was terrible.  At 3:50, we had best focus at -100 with seeing at 2.82 arcsecs,
and at 5:00, best focus was at +100 with seeing at 1.2 arcsecs.  Focus
changed again at 5:20 to 0 with seeing at 1.0 arcsecs.
                                FOCUS LOG
			       JUNE  3  1997
                  Best     Telescope         Wind             Seeing
Time   Inst      Focus      Az  El   Temp#  Dir MPH  filter   FWHM "
telescope opened @:21:15
21:15  DIS   -600(6206) -39.4 50.0 14.5/20.7  59  7    IN       1.8
22:00  DIS   -700(6046) -41.5 45.0 14.6/17.5  55  9    IN       2.7
03:50 GRIM2  -100(6669 -153.8 36.2 15.9/14.1  10  1  K short    2.8
telescope closed@:05:20
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
			      JUNE  3  1997
                                 Wind
    Time   Temp F  Dewp. F     MPH.  Dir.           Sky         Precip.
    16:01    77      20         11   249  (WSW) sctrd.clouds     none
    17:01    72      17          1   329  (NNW) sctrd.clouds     none
    18:01    74      18         11   235  (SW)  sctrd.clouds     none
    19:01    72      16         10   250  (WSW) sctrd.clouds     none
    20:01    61      51         14    58  (ENE) sctrd.clouds     none
    21:01    59      51          6    63  (ENE) light clouds     none
    22:01    58      49          8    59  (ENE) lt.clouds/hazy   none
    23:01    57      45          9    55  (NE)     hazy          none
    00:01    56      49         12    55  (NE)  pollen/dust      none
    01:01    53      49         10    55  (NE)     hazy          none
    02:01    54      51         12    58  (ENE)    hazy          none
    03:01    54      49          4    63  (ENE)    hazy          none
    04:01    61      37          0   239  (WSW) lt.clouds        none
    05:01    60      41          6   185  (S)   lt.clouds        none
place.  Telescope drives operational.  Current Remark version: 2.35a.
Current guide software version: GIm Ctrl SI502 6.3.96.
-Tia