Date: Tue, 22 Jun 1999 04:04:03 -0600
From: "N.C. Hastings"
Subject: 3.5m Night Log 990621
                 Apache Point Observatory, Sunspot, NM
                       Monday, June 21st, 1999
                     3.5-meter Night Observing Log
                                Actual
----------------------------------------------------------------------
ASTRONOMER     OBSERVER(S)       INSTRUMENT    DATE      START  FINISH
----------------------------------------------------------------------
C.Neuforge     C.Neuforge         Echelle      6/21-22   22:10  00:10
               & M.Templeton
A.Diercks      A.Diercks          GrIm II      6/22      00:15  01:10
D.Leeber       D.Leeber           GrIm II      6/22      01:10  03:34
E.Turner       C.Hastings         DIS          6/22      03:54  04:14
----------------------------------------------------------------------
 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY   NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
NM04/S    21:56  00:10     -   0.3   -   0.2   -   1.6   0    -    0
UW01/R    00:10  01:10     -    0    -    0    -   1.0   0    -    0
NM05/R    01:10  03:44    0.5   0    0    0   0.5  1.5   0    0    0
PU03/S    03:44  04:14    0.5   -    0    -    0    -    0    0    -
               -------------- Activity Log --------------
Observing Specialist: N.C.Hastings
    We opened at 22:30 after a damp and rainy afternoon. The echelle
was first on and things started up fine. After running for
appriximately 30 minutes the echelle slit viewer quit giving images.
It seemed to be repeating the last image taken, an image that was
taken while in subframe mode. Even though the new image commands were
for full frame, all we received was the sub frame. I restarted the
guider software (b23) and this did not help. After examination of the
/guider directory we (Craig Loomis and I) discovered that there was a
bug in the file naming routine
somewhere. The guider images imcrmented correctly until number 100,
then starting at #101 they added the digits that counted down from the
last number. (Example: 10543210.fits   106543210.fits) Very odd. The
/guider directory was renamed and a new, clean guider directory was
installed and we reverted back to the earlier version (b20) of the
guider software. This corrected the problem.
   The clouds moved in during NMSU's program and obscured for the rest
of the night...
                              FOCUS LOG
                            June 21st 1999
                  Best    Telescope    Temp      Wind          Seeing
Time  Instrmnt   Focus      Az  El   Air/Truss  Dir MPH  filter FWHM"
---------------------------------------------------------------------
22:35 Echelle +090(????)  -119  29  14.0/15.0   271  07   ND2   1.88"
00:25 GrIm II -200(6762)   274  21  12.3/12.9   012  05  f/5-J  1.61"
                              WEATHER LOG
                            June 21st 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    63    50     14   227  (SW)     425     Cloudy     None
     17:01    62    49     11   251  (WSW)    416     Cloudy     None
     18:01    60    49     10   248  (WSW)    402     Cloudy     None
     19:01    49    47     20    26  (NNE)   1238     Cloudy     Rain
     20:01    51    43      9     4  (N)      306     Cloudy     Rain
     21:01    56    39     10   262  (W)      391     Cloudy     None
     22:01    58    36     15   286  (WNW)    512    Ptly Cldy   None
     23:01    57    38      8   277  (W)      355    Ptly Cldy   None
     00:01    52    44      9    19  (NNE)    649     Clear      None
     01:01    55    40     11    23  (NNE)    399    Ptly Cldy   None
     02:01    59    33      1   287  (WNW)    333    Ptly Cldy   None
     03:01    57    37      5   350  (N)      261     Cloudy     None
     04:01    56    38      0   266  (W)      282     Cloudy     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: 2.5.5b5
Current guide software version: GIm Ctrl v3.0b20
-  NCH