Subject: 3.5m Night Log 20080403
Date: Fri,  4 Apr 2008 05:27:18 -0700 (MST)
From: bketzeba@apo.nmsu.edu (Bill Ketzeback)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Thursday, April 3, 2008
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 ------------------------------------------------------------------
 J.Dalcanton    J.Holtzman,S.Courteau   DIS           18:15  21:10
                                                      22:15  23:00
                                                      00:30  04:53
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW01/R     20:19  05:53   1.4   0   0.5   0   6.6   0    0   0.8  0.2
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 We opened at sunset with elevated dust and wind gusts but still in safe
 limits for operating. At 20:00 the site name server went down and all
 on and offsite communications went down. Fritz was able to get it
 started again but we had problems much of the rest of the night with
 the cloud camera, weather information webservices and other critical
 tools all while weather was very borderline. At 21:10 we experienced
 a major dust event where the 1.0 micron dust counts spiked to > 13K
 I was able to close quickly but the mirrors will need to be CO2
 cleaned during the day. Clouds again prevented us from collecting
 any useful data from 23:00 until about 00:30 when the skies cleared
 for the remainder of the night.
 The observer ran out of targets at 05:00 and gave up for the night.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
 UW01      D         T/S      20:00  20:30   Name Server Failed
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 ----------------------------------------------------------------------
19:20 dis-slit  288( 192) -118  65   4.8  6.2  7.5  5.4  5.0   --  1.88
19:23 NA2gdr  1031(23031) -118  64   4.8  6.0  7.4  5.3  5.0 R+nd2 1.41
21:33 dis-slit -173(-382)   89  68   2.6  3.9  4.6  3.4  2.8   --  1.70
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    46     4     23   278    (W)   3996    clear     dust
     17:00    50     7     23   252  (WSW)   2988    clear     dust
     18:00    48     3     29   254  (WSW)   3078    clear     dust
     19:00    44     1     30   244  (WSW)   3042    clear     dust
     20:00    41     1     18   266    (W)   2358  ptly cldy   dust
     21:00    40     2      9   340  (NNW)   2099   cloudy     none
     22:00    37    17     13     9    (N)   2469   cloudy     dust
     23:00    37    17     11    26  (NNE)   1463   cloudy     none
     00:00    36    15     12    32  (NNE)   1516  ptly cldy   none
     01:00    36    15     16    15  (NNE)   1565    clear     none
     02:00    35    17     22    36   (NE)   1652    clear     none
     03:00    34    18     18    43   (NE)   1714    clear     none
     04:00    34    17     17    61  (ENE)   2089    clear     none
     05:00    34    16     13    13  (NNE)   1988    clear     none
     06:00    33    18     11    53   (NE)   2153    clear     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 TCC version: 2.9.1
      Current TUI version: TUI 1.4.5