From:
Subject: 3.5m Night Log 20100821
Date: Sun, 22 Aug 2010 12:29:47 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Saturday August 21, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 A.Brown       A.Brown                  Echelle       --:--  --:--
 S.Schmidt     S.Schmidt                Tspec         01:50  05:50
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 CU02/R     19:50  01:05     0   5.3   0    0    0    0    0    0
 UW09/R     01:05  06:23     0   0.7   0    0   1.6  3.0   0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
SPIcam temp 172.6K @ 18:30
Spicam temp 169.4K @ 06:15
 We had rain at the beginning of the night, then clouds and threat of
 rain for the remainder of first half.  By the start of second half
 it was safe but not likely productive to open, so we waited a bit
 longer for the clouds to thin out.  From there the night was mostly
 clear, but of course even small patches of clouds could pose a
 problem for working in the IR.  Seeing was poor for Tspec but
 reasonably stable.  Guiding worked well except when clouds
 interfered.
                ------------- FAILURE LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 02:13 TSPEC    85(  767) -23  38  15.6 15.3 15.9 14.8 15.2   Ks   1.30
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    63    52      8    85    (E)    684   cloudy     none
     17:00    59    52     16   136   (SE)    576   cloudy     none
     18:00    57    51     17   109  (ESE)    447   cloudy     rain
     19:00    58    47     14   117  (ESE)    444   cloudy   lt rain
     20:00    58    52     13    84    (E)    835   cloudy   lt rain
     21:00    57    53     23   110  (ESE)    738   cloudy   lt rain
     22:00    58    48     21   121  (ESE)    240   cloudy     none
     23:00    60    49     17   119  (ESE)    632 mstly cldy   none
     00:00    59    53     15    94    (E)   1257 mstly cldy   none
     01:00    59    53     17    85    (E)   1178  ptly cldy   none
     02:00    59    52     13    89    (E)   1184 mstly clr    none
     03:00    61    45     12    84    (E)    724  ptly cldy   none
     04:00    60    47     11    95    (E)    737  ptly cldy   none
     05:00    60    48      8    44   (NE)    890  ptly cldy   none
     06:00    58    50     11   104  (ESE)   1028 mstly clr    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: 2.13.0
      Current TUI version: 1.8.1