From: Russet McMillan
Subject: 3.5m Night Log 20010616
Date: Sun, 17 Jun 2001 05:46:26 -0600 (MDT)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                       Saturday, June 16th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 J.Holtzman    J.Holtzman              DIS-Med         20:55  23:45
 A.Kleinman    A.Kleinman,B.McLean,    DIS-Med         02:40  04:10
               E.Kinney
 E.Turner      R.McMillan              SPIcam          04:23  05:25
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM04/R      21:17  01:00  1.3   0    0    0   2.4   0    0    0    0
 NM06/O      01:00  04:21  1.7   0    0    0   0.5  1.2   0    0    0
 PU05/O      04:21  04:51   0    0    0    0    0   0.5   0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: Russet McMillan
 Threatening clouds before sunset kept us closed until mid-twilight,
 and some cirrus lingered for several hours.  Seeing was poor to
 moderate first half (1.1-2.0 arcsec).  We had to close before
 midnight due to a dust event.  There was only one guider failure,
 recovered with no time loss.
 We re-opened second half when the dust dropped at last, and this time
 the skies were clear and the seeing subarcsecond.  I finished up with
 some very nice images of a lensed quasar.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 21:52  DISslit    -120(1170)   5  75  14.7/16.2  112  21   -     1.15
 02:56  DISslit    -80(1121)   -29 54  13.5/13.4  106  9    -     0.92
 04:27  SPIcam     100(1449)   139 53  14.7/14.1  79   5    r'    0.85
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     17:01    67    33     12    81  (E)     1028  ptly cldy   none
     18:01    66    32      0   113  (ESE)   1082  mstly cldy  none
     19:01    64    30      8    88  (E)      977  mstly cldy  none
     20:01    62    28     15   113  (ESE)    793  ptly cldy   none
     21:01    60    31     19   113  (ESE)    850   cirrus     none
     22:01    58    36     17   112  (ESE)    799   cirrus     none
     23:01    57    40     17   108  (ESE)   1855  mstly clr   none
     00:01    55    42     15    98  (E)     4342   clear      none
     01:01    55    40     10    83  (E)     4650   clear      none
     02:01    56    38      8    91  (E)     3805   clear      none
     03:01    56    36      8   107  (ESE)   2560   clear      none
     04:01    58    33      6    83  (E)     1866  mstly clr   none
     05:01    59    32      7    84  (E)     1332  mstly clr   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.