From: "Camron Hastings"
Subject: 3.5m Night Log 981230
Date: Thu, 31 Dec 1998 04:09:50 -0700
		     Apache Point Observatory, Sunspot, NM
		        Wednesday, December 30th, 1998
                     3.5-meter Night Observing Log
					  Actual
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ASTRONOMER       OBSERVER(S)     INSTRUMENT      DATE     START  FINISH
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B.Gillespie    K.Gloria,C.Loomis  Echelle       12/30-31  18:34  19:24
                 C.Hastings
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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    18:35  05:38    0.3  1.0   0    0   0.3  9.8   0     0    0
               -------------- Activity Log --------------
Observing Specialists: Karen Gloria & Camron Hastings
(KAG)  The telescope was opened at 16:00 MST. We used the engineering time
to work on the echelle instrument block. First we had to determine a
pointing model for NA1 in order to correct some large pointing and tracking
errors. In the process, we fixed a problem with running pointing corrections
at NA1 (due to some missing information in the NA1 data file), ran the NA2
guider focusing script on the echelle guider (with a couple minor changes),
and successfully ran a pointing model script. This pointing model tested
well on the sky. Additionally, local pointing corrections now put the star
on the pinhole. We did a first iteration on the position of the chip with
respect to the boresite, and we think the chip center is now much closer to
the boresite, but the test was inconclusive. We need to do another pointing
model, because changing the position of the chip with respect to the
boresite also changed the pointing by that amount.
(NCH)   I could not run a new pointing model as the boresite data took a
very large amount of time waiting for the field rotation. In addition, the
seeing was consistently around 9.0" in the pinhole viewer  images as the
weather changed dramatically around 2am. I finished the night taking
boresite data and then closed up early. The humidity had risen sharply and
no usable data could be taken after this time anyway. I replaced the cover
on the Echelle and left the tertiary mirror directed at the NA1 port.
   				       FOCUS LOG
                           December 30th 1998
                   Best    Telescope    Temp      Wind          Seeing
 Time  Instrmnt    Focus     Az   El   Air/Truss  Dir MPH  filter FWHM"
----------------------------------------------------------------------
18:25  Echelle   -608(5679) 134   59   7.2/ 6.2   338    5   ND3   1.1"
21:31  Echelle   -648(5731) 144   40   6.2/ 6.2    18   19   ND3   1.2"
02:15  Echelle   -900(5141) 270   49  -1.7/-0.1   075   21   ND3   9.1"
                               WEATHER LOG
                           December 30th 1998
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    43    17     11   326  (NW)            Cirrus      none
     17:01    42    19      5    12  (NNE)           Cirrus      none
     18:01    43    21     14   354  (N)             Cirrus      none
     19:01    45    21     15   347  (NNW)           Cirrus      none
     20:01    44    22      9    21  (NNE)           Cirrus      none
     21:01    42    21      8     8  (N)             Cirrus      none
     22:01    43    22     15    19  (NNE)           Cirrus      none
     23:01    43    22     15    15  (NNE)           Cirrus      none
     00:01    43    23     13     1  (N)             Cirrus      none
     01:01    41    23     13    26  (NNE)           Cirrus      none
     02:01    32    20     20    72  (ENE)            Clear      none
     03:01    29    22     19    75  (ENE)            Clear      none
     04:01    29    22     16    72  (ENE)            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 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: 2.42a
Current guide software version: GIm Ctrl v3.0b 15.out
- KAG, NCH