Date: Sat, 14 Mar 2009 11:52:21 -0000 (UTC)
Subject: 3.5m Night Log 20090313
From: "Gabrelle Saurage"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Friday, March 13th, 2009
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)              INSTRUMENT   START  FINISH
-------------------------------------------------------------------
 J.Greene        J.Greene, R.Worhatch     TSPEC        23:40  01:40
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
 PU04/R     20:03  06:21   2.1  6.2   0    0    0   2.0   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialists: G.Saurage
Few inches of snow fell in the afternoon. Clouds and humidity most of first half.
Began clearing around 23:00, and humidity came down a little; enough to open by
23:30. But humidity rose again after 01:00 and forced us to close again around 01:50
with high humidity the rest of the night.
During afternoon checkout I tested the potential sources of the TSPEC spontaneous
loss of arrayPower state. Curiously the fault did not happen tonight during cart
motion or mounting but later after sitting mounted, and after a few normal files had
been written; See edits added to PR #929. In the morning test darks taken before and
after dismounting were all fine as well.
                       ------- 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
    -------------------------------------------------------------------
     16:00    29    25     16   249  (WSW)    304   cloudy    humid
     17:00    27    27      3   232   (SW)    204   cloudy    humid
     18:00    28    26      7   311   (NW)    337   cloudy    humid
     19:00    28    26      2    99    (E)    316   cloudy    humid
     20:00    26    25      4    98    (E)    100   cloudy    humid
     21:00    28    24      6   275    (W)    224   cloudy    humid
     22:00    27    24      5   331  (NNW)    378   cloudy    humid
     23:00    28    24      6   262    (W)    413  ptly cldy   none
     00:00    28    24      8   271    (W)    540    clear     none
     01:00    28    24      6   265    (W)    605    clear     none
     02:00    27    25      7   291  (WNW)    564    clear    humid
     03:00    28    25     10   324   (NW)    515    clear    humid
     04:00    27    25      6   299  (WNW)    470    clear    humid
     05:00    27    25     10   327  (NNW)    425    clear    humid
     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: 2.10.0
      Current TUI version: TUI 1.5.1.