Date: Mon, 25 Aug 2008 11:01:39 -0000 (UTC)
Subject: 3.5m Night Log 20080824
From: "Gabrelle Saurage"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Sunday, August 24, 2008
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
-------------------------------------------------------------------
 E.Hilton       E.Hilton                AGILE        20:30  01:00
 A.Kowalski     A.Kowalski, S.Hawley    DIS          01:12  03:00
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
---------------------------------------------------------------------
 UW05/R     20:33  01:05    0    0    0    0   4.1  0.4   0    0    0
 UW13/R     01:05  05:38    0   2.8   0    0    0   1.8   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialist: G.Saurage
Az Velo Scales: 577.7, 581.0; 579.4 (changed to 579)
High humidity threatened closure all night, but with otherwise clear skies we pushed
the humidity limit to stay open as long as possible. By 3am humidity was over 95%,
so we had to close.
PR 868 - Both gcam and dcam tonight had the same guiding issues. Sometime after
guiding is going, guiding seems to produce the following warnings in the log:
07:56:16 .tcc.0 0 tcc W Modu="mir_o_MoveOneGalil"; Text="Tert returned an extra
message"
07:56:16 .tcc.0 0 tcc W Received="?GOPOS one or more axes did not end on a full step
 1,  1,  1,  0,  0"
The effect is to "hang" the guiders; that is they stop taking exposures, without
stopping guiding or any other signal. The solution I went with was to restart nubs
when I saw the warning message and restart guiding every few minutes. No science
time is lost to this, but seems like a symptom of something else.
Newton's monitor - It was not responding at all to mouse or even buttons on the
monitor itself, but displayed patterns of colorful lines. I unplugged it and plugged
it back in; seems to be fine now.
                       ------- 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
 -----------------------------------------------------------------
 20:47 AGILE   -250(-257)  38  57  12.4 14.0 13.7 13.1 12.6   B  0.70
 01:19 dis-slit  -56(103)  19  50  11.2 11.1 11.5 10.5 11.0      1.26
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    61    50      5    91    (E)    774 mstly clr    none
     17:00    59    50      7    92    (E)    602 mstly clr    none
     18:00    58    48      9   105  (ESE)    752 mstly clr    none
     19:00    57    46     18    95    (E)    751 mstly clr    none
     20:00    55    47     13    84    (E)    834 mstly clr    none
     21:00    54    48     16   110  (ESE)    977 mstly clr    none
     22:00    54    50     12   103  (ESE)   1054 mstly clr   humid
     23:00    53    51      9    88    (E)   1120 mstly clr   humid
     00:00    53    51     13    81    (E)   1124 mstly clr   humid
     01:00    52    50     13    90    (E)   1278 mstly clr   humid
     02:00    52    50     14    99    (E)   1390 mstly clr   humid
     03:00    51    50     13    85    (E)   1368 mstly clr   humid
     04:00    51    50     10    87    (E)   1535  ptly cldy  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