Date: Sun, 2 Oct 2011 12:30:01 -0000 (UTC)
Subject: 3.5m Night Log 20111001
From: "Gabrelle Saurage"
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, October 01, 2011
                                                            ACTUAL
 ASTRONOMER       OBSERVER(S)             INSTRUMENT     START  FINISH
--------------------------------------------------------------------
 J.Jackiewicz      J.Jackiewicz,J.Holtzman ECHELLE        19:23   00:57
 D.York            Y.Johnson               DIS            01:03   06:25
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
NM02/R     18:57   01:00    0    0    0    0   2.8  3.2   0    0
UC05/R     01:00   06:50    0    0   2.0   0   3.8  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: G.Saurage
Clear skies, good seeing.
First half: a few clitches with ecam. I've appended info onto PR#1274.
Second half: when I switched to DIS, we couldn't find stars. Light was getting
through but the images looked strange (See dcam files 0033 and 0038). I couldn't
focus with dis at all. I then found that when I had send the set inst command it was
coming back with this error:
06:58:51 .tcc.0 0 tcc F Modu="prt_Write"; Text="ss$_Hangup: received unsolicited
character or ^Y on port NTY39:"
06:58:51 .tcc.0 0 tcc F Modu="prt_Resynch"; Text="failed to send first flush command"
I called Fritz and he said the errors had something to do with tcc and gcam. He
fixed that, but that wasn't the problem. The images looked as if the tertiary was
not pointing to the right place, there were reflections. I tried homing the
tertiary. I tried correcting pointing. I switched to the NA2 guider. I could not
focus with DIS but I could with gcam. Eventually... 2 hours later... I figured out
it was only DIS that had the problem. When I went up to have a look at DIS I
discovered the slit wheel was not installed properly... or rather it had recently
been taken out and not re-installed properly. After reinstallation everything worked
as expected.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
UC05      D      I/H      01:03  03:06   DIS slit wheel not re-installed properly
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 19:34 ECHELLE   539( -444) 142  75  11.3 15.1 14.0 14.8 12.2     1.09
 20:40 ECHELLE   321( -779) 193  78  10.9 12.8 12.2 12.2 11.0     0.86
 03:15 dis-slit  268(   44)  22  56   9.6  9.2  9.6  9.2  9.3     0.99
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    62    39     11   271    (W)   1365   cloudy     none
     17:00    59    37      2   208  (SSW)   1143  ptly cldy   none
     18:00    62    38     11   221   (SW)   1129  ptly cldy   none
     19:00    53    35      9   153  (SSE)    973  ptly cldy   none
     20:00    52    34     14   129   (SE)   1025 mstly clr    none
     21:00    52    35     13   142   (SE)    924 mstly clr    none
     22:00    52    34     16   142   (SE)    871    clear     none
     23:00    51    35     18   147  (SSE)    841    clear     none
     00:00    50    38     17   139   (SE)   1280    clear     none
     01:00    50    39     16   138   (SE)   1295    clear     none
     02:00    50    39     15   146   (SE)   1284    clear     none
     03:00    50    39     17   153  (SSE)   1096    clear     none
     04:00    49    38     12   178    (S)   1065    clear     none
     05:00    49    38      7   179    (S)    938    clear     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: 2.15.0
    Current TUI version: 1.9.2