Subject: 3.5m Night Log 20070414
Date: Sun, 15 Apr 2007 06:55:12 -0600 (MDT)
From: bketzeba@apo.nmsu.edu (Bill Ketzeback)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Saturday, April 14, 2007
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 S.Anderson      S.Anderson             SPIcam         18:30  01:00
 G.Kacprzak      G.Kacprzak             SPIcam         01:00  06:30
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW03/R     20:28  01:00    0    0    0    0   4.5   0    0    0    0
 NM06/R     01:00  05:39    0    0    0    0   4.3  0.4   0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: W.Ketzeback
 The first half of the night had exceptional seeing. Most of the half it was
 under six tenths of an arcsecond. Right at the start of the second half
 a warm dry mass of air moved into the area and seeing degraded for much
 of second half. It was rather unstable because the telescope temperatures
 just could not keep up with the rapidly changing air temp or the wildly
 varying wind directional changes. Seeing was moderate at best to very poor
 until the end of the night when conditions calmed and the seeing again
 dropped into the subarcsecond regime. No other problems tonight.
                       ------- 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
 ----------------------------------------------------------------------
20:21 SPIcam     -30(-21)    64  68   2.7  2.1  1.2  1.6  2.3  r     0.7
20:31 NA2gdr  -231(31868)    63  71   2.9  2.1  1.3  1.7  2.3  R+nd2 0.67
21:06 SPIcam     -60(-44)    22  64   2.0  1.9  1.3  1.6  1.7  r     0.57
01:05 SPIcam     -75(-92)   -55  64   1.9  1.1  0.6  0.9  1.6  r     0.91
03:38 SPIcam      60(117)    11  58   7.6  2.6  2.3  2.6  5.0  r     1.48
05:43 SPIcam       10(69)  -133  66   4.2  3.6  3.1  2.8  3.8  r     0.79
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    38    28      7   298  (WNW)    305    clear     none
     17:00    40    28      2   254  (WSW)    264    clear     none
     18:00    38    22      1   338  (NNW)    331    clear     none
     19:00    36    22      1   121  (ESE)    307    clear     none
     20:00    34    11      7    65  (ENE)    270    clear     none
     21:00    36     0      4   357    (N)    151    clear     none
     22:00    36    16      8   338  (NNW)    232    clear     none
     23:00    35    18     11   327  (NNW)    357    clear     none
     00:00    34    19      2   221   (SW)    215    clear     none
     01:00    35    14      4   278    (W)    352    clear     none
     02:00    36    11      6   277    (W)    376    clear     none
     03:00    43     9      5   265    (W)    543    clear     none
     04:00    45    -3      7   184    (S)    802    clear     none
     05:00    41     4      8   172    (S)    752    clear     none
     06:00    41     0     10   179    (S)   1023    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: 2.9.0
      Current TUI version: TUI 1.3