Date: Thu, 22 Feb 2007 13:57:00 -0000 (UTC)
Subject: [apo-staff] 3.5m Night Log 20070221
From: "Gabrelle Saurage"
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Wednesday, February 21, 2007
                                                           ACTUAL
  ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
  D.Bowen         D.Bowen                DIS            18:20  23:57
  R.Walterbos     R.Walterbos            DIS            00:23  06:50
   INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
  I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 PU05/R       18:48  00:00   0    0    0    0   1.1  4.1   0    0    0
 NM06/R       00:00  05:46   0    0   1.0   0   4.8   0    0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialist: G.Saurage
Clear skies all night. Some networking problems delayed calibrations for a
bit, but things were cleared up before sunset.
Very unusual setup for second half: non-standard grating, special
requested cal lamp installed in truss, and specially populated filter
wheel. With everything installed, calibrated and seeming to be working, we
checked the multislit with the mirror in. The multislit and other filters
(everything except the 1.5 slit) were rotated to the instrument, only the
single slit had the correct orientation. After some investigation,
including taking the filter wheel out several times and confirming all is
moving correctly, I can only conclude that the wheel was just not mounted
properly. We lost about an hour to this alone, coupled with all the
calibrations needed for this setup we did not get on sky until 3am.
                       ------- 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
 -----------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     15:56    46     6                  ??     91    clear     none
     16:56    50    -7                  ??     64    clear     none
     17:56    44     8                  ??    119    clear     none
     18:56    43    -4                  ??    123    clear     none
     19:56    42    -1                  ??    104    clear     none
     20:56    44    -2                  ??    127    clear     none
     21:56    44    -9                  ??     82    clear     none
     22:56    45    -8                  ??     64    clear     none
     23:56    44    -4                  ??     79    clear     none
     00:56    43    -1                  ??     86    clear     none
     01:56    42     0                  ??     55    clear     none
     02:56    43    -3                  ??     17    clear     none
     03:56    42     0                  ??     46    clear     none
     04:56    42    -1                  ??     21    clear     none
     05:56    42    -3                  ??     41    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: 2.8.5
      Current TUI version: TUI 1.3