Date: Thu, 8 Nov 2001 06:20:40 -0700 (MST)
From: John Barentine
Subject: 3.5m Night Log 20011107
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                       Wednesday, November 7th, 2001
                                                           ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 B.Gillespie   J.Barentine, R.McMillan, GFP            17:40   21:00
               P.Palunas,E.Wassell,	SPIcam         21:20   23:00
               J.Morgan			NA2 guider     23:00   03:30
                                        SPICam         03:30   06:15
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 EN02/O      18:02  05:33   0    0    0    0   5.0  6.5   0    0    0
   note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 First Half Observing Specialist: R. McMillan
 The telescope was opened for cooling before sunset under mostly clear
 skies.  Humidity looked like a potential threat for a little while,
 but dropped nicely after twilight.  We spent the first hour or so of
 the night making adjustments to the behavior of the altitude axis
 that we hope will improve pointing; another pointing model would be
 desirable now that these changes have been made.
 Once the altitude seemed stable, we progressed to a Fabry-Perot
 instrument block combined with observer training.  This went well,
 and the seeing appeared quite good.  Next we mounted SPIcam for more
 focus vs. temperature tests, to see how the telescope focus changes
 with the fans off (as in dust events).  Jeff Morgan logged in at
 23:00 to do a more complete set of guider focus vs. rotation tests,
 since last night's were hampered by poor weather and limited time.
 Second Half Observing Specialist: J. Barentine
 Jeff reported problems with the guider seemingly going out of focus all
of a sudden and losing his guide stars.  Russet determined this was the
result of setting the interval between focus positions too high in gfocus;
lowering the interval helped.  Started a 12x7 pointing model around 02:30.
The pointing model finished by 03:30 and I turned back to SPICam to obtain
some science images after implementing the new pointing model.
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM
 ----------------------------------------------------------------------
 19:47  GFP        -275(809)   132 61  5.9/6.6    286  10   5000  0.73
 19:57  NA2gdr     0(66100)    136 62  5.6/6.3    292  7    ND2   0.85
 21:24  SPIcam     -25(698)    187 68  5.8/6.0    273  1    R     0.71
 21:30  NA2gdr     1307(62307) 189 68  6.2/5.9    267  5    R     0.81
 21:52  SPIcam     0(723)      203 67  6.3/5.8    250  6    R     1.07
 22:15  SPIcam     0(723)      216 64  6.3/6.0    231  3    R     1.10
 22:36  SPIcam     25(760)     225 62  6.3/5.9    266  4    R     1.01
 22:50  SPIcam     25(761)     231 59  6.1/5.9    275  6    R     0.79
 22:55  NA2gdr     785(61785)  232 59  6.2/5.9    280  5    R     0.96
 23:07  SPIcam     25(771)     236 57  6.3/5.9    290  7    R     0.84
 02:07 NA2Gdr      25(767)     -45 64  6.7/6.2    335  5    R     0.90
 02:15 SPIcam      -50(697)    -46 63  6.6/6.3    340  7    R     0.79
 03:57 SPIcam      0(816)      171 31  5.0/5.7    9    10   R     1.37
 04:04 NA2gdr      4894(65894) 173 31  6.3/5.6    19   7    R     1.50
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    50    30     12   289  (WNW)    225  ptly cldy   none
     17:01    44    34      7   314  (NW)     306  mstly clr   none
     18:01    43    33      7   343  (NNW)    312   clear      none
     19:01    43    31      8   284  (WNW)    205   clear      none
     20:01    42    32      9   287  (WNW)    288  ptly cldy   none
     21:01    43    33      5   279  (W)      301  mstly clr   none
     22:01    43    31      4   250  (WSW)    373   clear      none
     23:01    43    31      5   275  (W)      342   clear      none
     00:01    44    29      4   274  (W)      307   clear      none
     01:01    44    26      8   307  (NW)     202   clear      none
     02:01    44    25      7   326  (NW)     188   clear      none
     03:01    43    25      8   352  (N)      215   clear      none
     04:01    44    27      8   358  (N)      199   clear      none
     05:01    43    25      9    12  (NNE)    165  ptly cldy   none
     06:01    44    26      7    82  (E)      160  ptly 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 particles
   > 1u per 0.1 cubic feet.
                               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: 2.62. Current
   guide software version: GIm Ctrlv4.1b2. Current TCC version: 2.5.5
   Current MC version: v1_7_3.