Date: Sat, 20 Feb 1999 06:32:38 -0700 (MST)
From: Russet McMillan
Subject: 3.5m Night Log 990219
Content-Length: 2837
		     Apache Point Observatory, Sunspot, NM
  	                 Friday, February 19th, 1999
                        3.5-meter Night Observing Log
				  Actual
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ASTRONOMER       OBSERVER(S)     INSTRUMENT      DATE     START FINISH
----------------------------------------------------------------------
B.Gillespie      C.Rockosi       Echelle        2/19-20   19:15  05:19
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 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY    NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE    D    B
----------------------------------------------------------------------
EN01/S    19:15  05:19    1.3   0    0    0   6.3  2.5   0     0    0
               -------------- Activity Log --------------
1st Half Observing Specialist: N.C.Hastings
We opened at 17:30 for cooling. Connie had closed up many of the light
leaks in the echelle and as we tried bias images during twilight we
ran into many crashing problems with the two new versions of
REMARK. The first version, 2.53, crashed twice, and 2.54b1 crashed
once. Craig looked at the results and we ended up running 2.52 for the
evening.
Early on we had image troubles with the echelle images. The resulting
images looked quite incorrect, with lines mismatching and the general
image size was found to be incorrect. It appears that the 'lines' and
the 'columns' were being mixed up by the new ICC software. We reverted
to 'com33.remote' and it seemed to cure our problems.
2nd Half Observing Specialist: R.McMillan
Second half was increasingly cloudy.  We closed at 03:45 due to
clouds, then re-opened at 05:00 to take some sodium-line spectra of
clouds over Holloman/Alamogordo.
                               FOCUS LOG
                           February 19th 1999
                   Best    Telescope    Temp      Wind          Seeing
 Time  Instrmnt    Focus     Az   El   Air/Truss  Dir MPH  filter FWHM"
----------------------------------------------------------------------
19:50  Echelle  -950(5339)  277   62   6.3/7.3    270  20  clear  1.71"
22:20  Echelle  -942(????)  224   51   4.2/4.4    276  25  ND1    1.52"
                              WEATHER LOG
                           February 19th 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    48    12     22   272  (W)      576     clear      none
     17:01    47    13     11   259  (W)      620     clear      none
     18:01    45     9     23   258  (WSW)    958     clear      none
     19:01    44    12     19   280  (W)      901     clear      none
     20:01    43    15     15   273  (W)      939     clear      none
     21:01    41    17     24   289  (WNW)    732     clear      none
     22:01    40    18     27   293  (WNW)    786     clear      none
     23:01    39    18     18   298  (WNW)    657     cirrus     none
     00:01    39    18     16   307  (NW)     589     cirrus     none
     01:01    39    18     21   305  (NW)     589    ptly cldy   none
     02:01    38    19     17   308  (NW)     587    mstly cldy  none
     03:01    39    18     13   338  (NNW)    668    mstly cldy  none
     04:01    39    20     19   333  (NNW)    682    mstly cldy  none
     05:01    37    20     17    24  (NNE)    783    mstly cldy  none
     06:01    36    20     10     6  (N)      698    mstly cldy  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: 2.52
Current guide software version: GIm Ctrl v3.0b 17.out
- NCH, RM