Date: Mon, 8 Sep 2008 09:52:40 -0000 (UTC)
Subject: 3.5m Night Log 20080907
From: "Gabrelle Saurage"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Sunday, September 7, 2008
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
-------------------------------------------------------------------
 M.Whittle      G.Privon                TSPEC         --:--  --:--
 R.Beaton       R.Beaton                TSPEC         --:--  --:--
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
--------------------------------------------------------------------
 UV01/R     20:14  01:05   1.0  3.9   0    0    0    0    0    0    0
 UV05/R     01:05  05:49   4.7   0    0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: G.Saurage
While heavy rains beat on the dome during first-half various problems developed as
the telescope was just sitting.
TripleSpec Aux tank apparently warmed up. No alarms, no warning emails. When the
first-half observers took cals they noticed something wrong. Checking the temps
revealed the aux tank at about 95K. The transfer dewer is currently not holding
pressure and therefore must not have been delivering fills properly. Nick actually
had to come up and fashion a temporary funnel to fill it. TSpec will still be
mounted for a few days so it is being left on the telescope at rotation 180 so that
we don't too much spill LN2.
While Nick was here he also got to look at the tertiary. The tertiary has not been
moved since the beginning of last night, but tonight it was reporting errors, such
as:
04:21:56 .tcc.0 0 tcc F Modu="mir_o_MoveOneGalil"; Text="could not specify new
positions for Tert mirror actuators"
Nick homed it a few times watching and listening. It finally moved the right way to
a good position.
Rains slowed by 1am, but we sat in fog or very high humidity 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
-----------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    56    50     14    95    (E)    717 mstly cldy   none
     17:00    58    47     15   150  (SSE)    611 mstly cldy   none
     18:00    55    47     18   122  (ESE)    883   cloudy     none
     19:00    54    49     13   107  (ESE)    984   cloudy   lt rain
     20:00    52    50     12   112  (ESE)    724   cloudy     rain
     21:00    49    49     15    59  (ENE)    947   cloudy     rain
     22:00    48    48     17    51   (NE)    144   cloudy     rain
     23:00    47    47     13    86    (E)    358   cloudy     rain
     00:00    48    45     15    80    (E)    415   cloudy    humid
     01:00    48    44     14    91    (E)    241   cloudy    humid
     02:00    47    46     23    72  (ENE)    311   cloudy    humid
     03:00    47    47     18    65  (ENE)    355   cloudy    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: 2.9.1
      Current TUI version: TUI 1.4.5