Date: Wed, 21 Feb 2007 14:12:03 -0000 (UTC)
Subject: [apo-staff] 3.5m Night Log 20070220
From: "Gabrelle Saurage"
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Tuesday, February 20, 2007
                                                           ACTUAL
  ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
  T.Murphy        J.Battat               Apollo         18:00  19:20
  M.Shin          M.Oguri                DIS            19:24  23:55
  Q.Hart          Q.Hart                 SPIcam         00:06  07:07
   INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
  I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
DD01/O       18:47  19:17    0    0    0    0   0.5   0   0.9   0    0
PU04/R       19:17  00:00    0    0    0    0   1.8  2.9   0    0    0
CU01/R       00:00  05:47    0    0    0    0   5.8   0    0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialist: G.Saurage
Clear skies, a little windy: Apollo began the night with returns from
three reflectors amid bouncy seeing. Fair seeing with DIS. SPIcam had good
seeing (down to 0.8”) for a while, then around 2:00 warm dry air moved in
and seriously degraded image quality. Temperatures (and therefore seeing)
were unstable the rest of the night.
                       ------- 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
 -----------------------------------------------------------------
19:30 DISslit     47(-247) 192 69  -2.1 -2.1 -2.6  -2.4 -2.1  --  1.2
00:08 SPIcam     -25(-173) 171 80  -1.7 -2.1 -2.8  -2.6 -1.7  r   0.9
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     15:57    30    18                  ??    418    clear     none
     16:57    30    17                  ??    421    clear     none
     17:57    28    16                  ??    390    clear     none
     18:57    28    16                  ??    360    clear     none
     19:57    29    15                  ??    294    clear     none
     20:56    29    15                  ??    262    clear     none
     21:56    29    17                  ??    228    clear     none
     22:56    29    16                  ??    217    clear     none
     23:56    29    14                  ??    307    clear     none
     00:56    29    16                  ??    188    clear     none
     01:56    32     5                  ??    149    clear     none
     02:56    34    -4                  ??    146    clear     none
     03:56    36   -13                  ??    163    clear     none
     04:56    37   -14                  ??     99    clear     none
     05:56    38   -10                  ??     31    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 1.2