Date: Sat, 21 Aug 2010 06:22:48 -0600 (MDT)
Subject: 3.5m Night Log 20100820
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Friday August 20, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 T.Murphy       R.McMillan              APOLLO        --:--  --:--
 M.McElwain     M.McElwain, C.Blake     TSPEC         --:--  --:--
 J.Coughlin     J.Coughlin              DIS           02:45  03:30
 G.Wallerstein  G.Wallerstein           Echelle       03:30  05:15
 B.Ketzeback    J.Dembicky              Echelle       05:15  06:45
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 DD01/R     19:51  21:00     0   1.2   0    0    0    0    0    0
 PU01/R     21:00  02:30     0   5.5   0    0    0    0    0    0
 NM03/R     02:30  03:30     0   0.2   0    0    0   0.8   0    0
 UW15/R     03:30  05:22     0    0    0    0   1.6  0.2   0    0
 DD02/O     05:22  06:22     0    0    0    0   1.0   0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
SPIcam temp 174.4K @ 18:10
Spicam temp 171.0K @2:45
SPIcam temp 170.3K @ 06:15
Clouds for most of the night but we were able to get on the sky and get some useful data the later
part of the 2nd half.
The 3.5m dewpoint went crazy around 03:25 this morning.  Humidity spiked at 235%. It dropped back
to normal a few minutes later.
I corrected the pointing at NA1 tonight.
                ------------- 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
 -----------------------------------------------------------------------
 02:51 dis-slit   166(  576) -51  45  17.4 16.9 17.2 16.6 16.9   --  1.70
 03:43 ECHELLE  -194( -320) -55  63  17.4 16.8 17.0 16.2 16.7   ND2  0.72
 05:21 ECHELLE  -249( -400) 121  56  15.6 16.1 16.2 15.4 15.7   ND3  0.81
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     18:00    63    45     10    75  (ENE)    729   cloudy     none
     19:00    65    46      9    82    (E)    536   cloudy     none
     20:00    63    37     16    28  (NNE)    413 mstly cldy   none
     21:00    62    33     18    69  (ENE)    301   cloudy     none
     22:00    62    39     11    21  (NNE)    310   cloudy     none
     23:00    62    36      8    71  (ENE)    328   cloudy     none
     00:00    61    37      1   156  (SSE)    334   cloudy     none
     01:00    65    36      2    94    (E)    338 mstly cldy   none
     02:00    64    37      0   178    (S)    308 mstly cldy   none
     03:00    64    37      1   113  (ESE)    354  ptly cldy   none
     04:00    64    42      5   152  (SSE)    282 mstly clr    none
     05:00    61    43      7   328  (NNW)    412 mstly clr    none
     06:00    60    43      4    78  (ENE)    417  ptly cldy   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