Date: Tue, 12 Jun 2001 05:32:44 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20010611
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                         Monday, June 11th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 J.Knapp       J.Knapp, X.Fan          DIS-High        21:28  00:48
               V.Narayanan
 T.Harrison    T.Harrison, H.Osborne   DIS-High        00:50  05:09
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 PU04/R      21:15  01:00   0    0   0.2   0   3.2  0.4   0    0    0
 NM05/R      01:00  04:51   0    0    0    0    0   3.9   0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: Jack Dembicky
Started cooling enclosure at 19:10.  Turned GrIm on since the 1st half
observers requested that they might decide to use it if it looked
photometric (It didn't at sunset, but just to be safe it was checked out)
I had serious problems calibrating the red grating on DIS tonight.  It
took me 1.5 hrs (20 iterations!!!) to finally get the grating center
somewhat close (still 2 steps off, but that was about the best I could
get it).  PR was submitted as this problem needs immediate attention.  The
Blue grating calibrated in 2 iterations.  We lost about 13 mins of time
for the 1st program due to this problem (I spent all of twilight trying
just to get the grating centered correctly).
Opened the enclosure at 21:50 and did a focus check.  Seeing was about 1.2
arc sec.
The NA2 guider died around midnight and a call to Craig got it happy
again.  PR submitted with all the gory details of what happened and how to
fix it.
Handed instrument over to 2nd half observer a little ahead of schedule
since the 1st half observer finished a little early due to clouds.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 21:52  DISslit  -140(1319)    78 53   18.5/21.5  282  12  none   1.18
 21:58  NA2gdr   575(56575)    78 54   18.2/21.2  275  11  none   1.26
 01:20  DISslit  -100(1169)   100 59   17.0/17.3  266  12  none   1.5
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     17:01    78    20      7   212  (SSW)    624   Pt. Cldy   none
     18:01    76    20      7   278  (W)      585   Pt. Cldy   none
     19:01    71    20      7   260  (W)      643   Pt. Cldy   none
     20:01    68    20     14   261  (W)      901   Pt. Cldy   none
     21:01    67    20     11   259  (W)      920   Pt. Cldy   none
     22:01    65    22     12   261  (W)      997   Pt. Cldy   none
     23:01    64    21      9   268  (W)     1012   Pt. Cldy   none
     00:01    64    20     18   292  (WNW)    778  Mst. Cldy   none
     01:01    63    20     15   285  (WNW)    911  Mst. Cldy   none
     02:01    62    19     15   274  (W)      930   Pt. Cldy   none
     03:01    61    20     10   287  (WNW)    911   Pt. Cldy   none
     04:01    58    20     11   276  (W)     1088   Mst. Clr   none
     05:01    58    22     10   271  (W)     1157   Pt. 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: 2.5.3
  Current MC version: v1_7_3.