Subject: 3.5m Night Log 20180528
From: cgray@apo.nmsu.edu
Date: Tue, 29 May 2018 12:28:54 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, May 28, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
A.Kowalski        A.Kowalski            ARCTIC         20:13   01:04
C.Gray            C.Gray, C.Schmidt     DIS            01:38   05:09
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
CU05/R     20:13   01:10    0    0    0   0.2  0.0  4.8   0    0
NM03/R     01:10   05:48    0    0    0   0.4  0.0  4.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
Several issues tonight.
We were having a dilly of a time finding a star in the NA2 guider for CU05.  I finally realized we might be on the wrong filter and that the filters were not displaying.  It took me a little while to solve the problem but then everything was good.
In moving the central wavelength on DIS for NM03, I mistyped the values and the gratings moved, I'm assuming, too far and needed to be homed but it took me awhile.
We lost connection to arcsat at 03:15 am.  The camera was not responding and giving the error "error retrieving image array size".  I tried turning the camera off and on but it wouldn't come back.  I tried to close out the software and restart but it started flashing programs on and off and then crashed.  After going to the dome I saw that the computer crashed and I couldn't bring it back up.
On a good note, no clouds!!  And fairly good seeing! There was a little bit of wind, which was annoying, but didn't cause any collisions.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
CU05    R         I/S     23:33   23:47  NA2 lost filter wheel
NM03    D         I/S     01:16   01:38  gratings needed homing
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:45 arctic   607( 1228)  -4  69  15.4 15.2 15.9 15.1 15.1   JC-V  1.03
 00:44 dcamera    285(  714) -39  32  14.0 13.9 14.5 13.8 13.9   --  1.72
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    70    25     13   231   (SW)   1938    clear     none
     17:00    68    24     26   247  (WSW)   1449    clear     none
     18:00    67    23     13   263    (W)   1581    clear     none
     19:00    65    21     19   269    (W)   1365    clear     none
     20:00    61    17     21   262    (W)   1854    clear     none
     21:00    60    16     19   264    (W)   1571    clear     none
     22:00    60    17     18   279    (W)   1406    clear     none
     23:00    59    16     12   263    (W)   1598    clear     none
     00:00    59    15     16   297  (WNW)   1352    clear     none
     01:00    58    15     14   291  (WNW)   1329    clear     none
     02:00    58    15     20   303  (WNW)   1216    clear     none
     03:00    58    15     19   311   (NW)   1277    clear     none
     04:00    57    14     15   306   (NW)   1352    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: 1.2.4
    Current TUI version: 2.6.0