Subject: 3.5m Night Log 20090723
Date: Fri, 24 Jul 2009 12:17:23 +0000 (UTC)
From: bketzeba@apo.nmsu.edu
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Thursday, July 23, 2009
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 ------------------------------------------------------------------
 C.Wu            C.Wu                   DIS            19:45  01:05
 B.Williams      B.Williams              DIS            01:05  06:02
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 NM03/O     21:09  01:05    0    0    0    0   3.6  0.3   0    0    0
 UW04/R     01:05  05:11    0    0    0    0   4.1   0    0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 High altitude cirrus clouds all night. Seeing was moderate to poor.
 The last hour we stayed open and pushed the dewpoint depression a bit
 since I found no evidence of condensation on two trips to the dome
 and windows on vehicles. Right after we closed for morning cals the
 skies became opaque and the humidity spiked to over 90%. This morning
 we noted that the top bright quartz lamp had burnt out. A PR was
 filed.
                       ------- 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
 --------------------------------------------------------------------------
 20:56 dis-slit   140(  643)  55  73  14.3 18.5 16.7 17.8 18.3   ---  1.65
 21:04 NA2gdr  -898(21101)  50  74  14.2 18.2 16.4 17.3 16.6   R+nd2  1.64
 01:19 dis-slit   259(  592) 219  50  14.8 14.7 14.8 14.1 14.5   ---  1.93
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    62    54     10   259    (W)    547  ptly cldy   none
     17:00    62    53      3   296  (WNW)    524  ptly cldy   none
     18:00    64    55      6   191    (S)    541  ptly cldy   none
     19:00    63    53      1   240  (WSW)    460  ptly cldy   none
     20:00    60    50      7   143   (SE)    480 mstly clr    none
     21:00    58    50      9    54   (NE)    612 mstly clr    none
     22:00    58    50      5   343  (NNW)    619 mstly clr    none
     23:00    59    48      5   350    (N)    656 mstly clr    none
     00:00    59    48      9   336  (NNW)    597 mstly clr    none
     01:00    59    48      6   342  (NNW)    573 mstly cldy   none
     02:00    57    50      7   295  (WNW)    722  ptly cldy   none
     03:00    56    50      4   264    (W)    767 mstly clr    none
     04:00    54    50      5   242  (WSW)    987    clear     none
     05:00    55    51      5   247  (WSW)   1186    clear    humid
     06:00    54    51      8   199  (SSW)   2189   cloudy    humid
     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: 2.10.0