Subject: 3.5m Night Log 20180327
From: trudyk@apo.nmsu.edu
Date: Wed, 28 Mar 2018 11:45:13 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, March 27, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
B.Ketzeback       R.McMillan,T.Rudyk    DIS            20:00   21:00
B.Ketzeback       R.McMillan,T.Rudyk    DIS            00:45   03:00
B.Ketzeback       R.McMillan,T.Rudyk    Shack          03:00   04:00
B.Ketzeback       R.McMillan,T.Rudyk    DIS            04:08   05:08
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/O     19:28   06:48    1.4  4.8   0    0   0.0  5.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started mostly clear but clouds moved in shortly after sunset. Clouds got worse around 21:00 and we gave up on the sky tasks.  We left the dome open for an hour longer to cool the mirror, then closed since there was no return on sky. Skies clear abruptly at 00:45, and we resumed engineering. Tasks completed: reset axis controllers, zeroed rotator, M2 homing, DIS focus change, scope collimation (no adjustment needed). We closed at 05:08 due to humidity.
                    ------- 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
--------------------------------------------------------------------------
 20:02 dcamera    377(  274) 120  50   1.3  3.7  3.9  3.5  1.5   -  1.77
 01:14 dcamera    437(   83) -123  66  -1.4 -1.0 -0.5 -1.0 -1.4   -  1.43
 03:14 shack   625(  754) 165  59  -2.3 -2.4 -1.8 -2.5 -2.6   -  1.20
 04:24 dcamera    482(   38) 269  49  -3.4 -3.0 -2.3 -3.1 -3.4   -  1.25
          ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    38    18     13   235   (SW)   1246 mstly clr    none
     17:00    42    14     23   240  (WSW)   1433 mstly clr    none
     18:00    41    12     24   252  (WSW)   1548 mstly clr    none
     19:00    37     9     15   265    (W)   1491 mstly clr    none
     20:00    34     8      8   289  (WNW)   1468  ptly cldy   none
     21:00    34     6     12   297  (WNW)   1556 mstly cldy   none
     22:00    33     5      8   284  (WNW)   1556 mstly cldy   none
     23:00    31     4      8   265    (W)   1484 mstly cldy   none
     00:00    30     7      4   224   (SW)   1446 mstly cldy   none
     01:00    30    11      7   242  (WSW)   1519    clear     none
     02:00    29    13      9   231   (SW)   1421    clear     none
     03:00    29    13     12   217   (SW)   1435    clear     none
     04:00    28    13     11   223   (SW)   1496    clear     none
     05:00    25    22      9   212  (SSW)           clear     fog
     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