Date: Fri, 23 Jan 2004 06:51:24 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20040122
                         Apache Point Observatory
                         3.5m Telescope Night Log
                        Thursday, January 22, 2004
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 R.Kron          L.Grodnicki            DIS            17:30 00:05
 A.Nitta         A.Nitta, J.Krzesinski  DIS            03:30 06:20
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UC01/R      18:22  00:15   0    0    0    0   5.7  0.1   0    0    0
 NM07/O      00:15  06:07  3.3   0    0    0   2.6   0    0    0    0
  note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: B.Ketzeback
 Lots of cirrus and faster moving bands of thicker clouds tonight. It did not
 stop us from opening however. Humidity / dewpoint depression again hung just
 below closure limits all of first half.
 2nd half Observing Specialist: J.Dembicky
 Humidity went over the closure limits as the first half observers
 finished.  I closed the enclosure and let the 2nd half observers take
 their cal lamps.
 The humidity dropped below closure limits around 03:00 and we opened
 again at 03:30 under partly cloudy skies.
                        ------- FAILURE LOG -------
 PROG   INST   FAILURE MODE     TIME
      (SEGDFVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 19:02 dis-slit    -25(906)    243 60  -0.9/2.9   137  11   -     1.49
 19:05 NA2gdr      -131(46868) 243 60  -0.9/2.9   136  11   R     1.4
 03:41 DISSlit      125(834)  -156 72   0.6/-1.3  216   7  none   1.12
 03:44 NA2gdr     -811(46188) -154 72   0.9/-1.2  204   2  clear  1.02
                   -------------- WEATHER LOG ----------------
                                 Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    38    24      9   232  (SW)     -   prtly cldy  none
     17:01    35    22      3   233  (SW)     -   prtly cldy  none
     18:01    30    21     10   111  (ESE)    -   prtly cldy  none
     19:01    30    22     10   136  (SE)     -   prtly cldy  none
     20:01    31    23     11   128  (SE)     -   prtly cldy  none
     21:01    32    24     10   177  (S)      -   prtly cldy  none
     22:01    31    25     11   155  (SSE)    -   prtly cldy  none
     23:01    31    25     14   159  (SSE)    -   prtly cldy  humid
     00:01    31    27     12   166  (SSE)    -   prtly cldy  humid
     01:01    30    27     13   148  (SSE)    -   prtly cldy  humid
     02:01    30    27     10   149  (SSE)    -   prtly cldy  humid
     03:01    30    24      4   184  (S)      -   prtly cldy  none
     04:01    33    11      2   234  (SW)     -   prtly cldy  none
     05:01    34     6      4   185  (S)      -   prtly cldy  none
     06:01    34     8      8   203  (SSW)    -   prtly 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
   Telescope drives operational. Current Remark version: 2.85b
   Current guide software version: guider v4.1b4
   Current TCC version: 2.7.2  Current TUI version: TUI-0.81