From:
Subject: 3.5m Night Log 20100502
Date: Mon,  3 May 2010 12:00:31 +0000 (UTC)
                       Apache Point Observatory
                       3.5m Telescope Night Log
                         Sunday, May 2, 2010
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 --------------------------------------------------------------------
 T.Harrison      J.Coughlin             DIS            --:--  --:--
 J.Coughlin      J.Coughlin             DIS            01:30  01:50
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 --------------------------------------------------------------------
 NM06/R    19:54   01:10   4.2  1.1   0    0    0    0    0    0
 NM01/R    01:10   06:07    0   4.5   0    0    0   0.4   0    0
 note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
 Observing Specialist:  R.McMillan
 We had high humidity, high winds, and snow falling first half, then
 more high humidity and snow towards dawn.  In between there was a
 gap in clouds and precip that I thought might last an hour or two,
 long enough to get science -- but when we opened, we barely had time
 to get focused and set up before clouds formed overhead and the
 humidity spiked.
 There were some interesting cases of noise on the PMSS dataq while
 the telescope was parked during first half -- it appeared to be just
 electrical noise and not reflection of a physical motion.
                     ------- FAILURE LOG -------
 PROG   INST   FAILURE MODE     TIME
     (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
             ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
 -------------------------------------------------------------------------
 01:40 dis-slit     0( -465) 119  44  -4.4 -1.8 -2.2 -3.9 -3.2   -   2.00
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    37    15     25   254  (WSW)   1861   cloudy     none
     17:00    36    18     16   270    (W)   6938   cloudy     dust
     18:00    35    19     18   254  (WSW)   2251   cloudy     none
     19:00    35    21     24   276    (W)   3200   cloudy     snow
     20:00    27    27     15   301  (WNW)   9480   cloudy     snow
     21:00    28    27     15   266    (W)   1797   cloudy   lt snow
     22:00    26    25     13   233   (SW)   1445   cloudy     none
     23:00    26    22     10   218   (SW)   1576   cloudy     none
     00:00    25    24      9   196  (SSW)   4700   cloudy     none
     01:00    24    20     10   282  (WNW)   1322 mstly clr    none
     02:00    23    22      8   262    (W)   1471   cloudy     none
     03:00    23    22     12   262    (W)    913   cloudy     none
     04:00    22    21      6     2    (N)   1286   cloudy     snow
     05:00    22    21     13    26  (NNE)    889   cloudy     snow
     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 TCC version: 2.11.1
    Current TUI version: 1.7.2