Date: Tue, 1 Dec 1998 07:28:08 -0700 (MST)
From: Karen Gloria
Subject: 3.5-m obslog 981130
                         MONDAY NOVEMBER 30, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Staff         Hastings, Gloria      SPIcam  11/30-12/1 18:24 05:21
                  Rockosi
 INST        SCHEDULED     WEATH     EQUIP     OBS     DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
EN01/S     18:24 05:21    0    0    0    0   1.1  9.9   0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
1st half observing specialist: Camron Hastings
2nd half observing specialist: Karen Gloria
The first half of the night was used by Connie Rockosi for engineering
work on the Echelle.
The telescope was opened at 23:50 for a series of tests on altitude
remaps, followed by a pointing model.  The purpose of the test was to
demonstrate that using an average of several maps is better than using
the results of a single remap.  In fact, one of the altitude remaps I
ran had a few wonky magnesensor measurements, one of which was over 3
sigma from the mean.  I wouldn't have noticed it if I had run a single
remap.
I ran a pointing model using an average altitude map.  The seeing was
so awful it was difficult to determine best focus.  I did get a 130
point model, with 4.6 arcsec rms fit to the data.  A blind pointing
test gave an average error of 8.6 arcsec.  The average pointing error
was 6.2 arcsec at 45 degrees and 11.0 arcsec at 78 degrees.
                             OBSERVER COMMENTS
                                 FOCUS LOG
                              NOVEMBER 30 1998
						 Wind
Time   Inst        Focus     Az  El   #Temp    Dir  MPH  filt  FWHM "
02:30 SPIcam  -200(6086)      0  46  4.0/4.8   151  23    i'    2.0
03:00 guider 49500(6077)    356  46  4.9/4.6   170  21  R+ND2   3.6
05:30 guider 50815(5985)    163  71  3.0/4.5   176  11  R+ND@   3.2
#First temp is air, second temp is telescope.
                                  WEATHER
                              NOVEMBER 30 1998
                               Wind
     Time   Temp F Dewp F  MPH  Direction    Dust      Sky      Precip.
     16:01    46    24      9    86  (E)              clear      none
     17:01    44    17      8   114  (ESE)            clear      none
     18:01    46     5     18   133  (SE)             clear      none
     19:01    46     3     18   128  (SE)             clear      none
     20:01    44     4     16   125  (SE)             clear      none
     21:01    42     6     24   125  (SE)             clear      none
     22:01    42     5     29   128  (SE)             clear      none
     23:01    40    17     23   145  (SE)             clear      none
     00:01    41    17     24   153  (SSE)            clear      none
     01:01    41    15     22   150  (SSE)            clear      none
     02:01    40    17     21   154  (SSE)            clear      none
     03:01    41    12     22   171  (S)              clear      none
     04:01    41    12     15   177  (S)              clear      none
     05:01    38    15     16   144  (SE)             clear      none
     06:01    44    10     11   179  (S)              clear      none
     07:01    44     6     13   202  (SSW)            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: 2.42a.
Current guide software version: GIm Ctrlv3.0b15.
- Camron Hastings, Karen Gloria