Subject: 3.5m Night Log 20180626
From: dembicky@apo.nmsu.edu
Date: Wed, 27 Jun 2018 11:19:50 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, June 26, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
R.Vervack  R.Vervack, C.Schmidt, C.Gray ECHELLE        19:30   21:26
A.Kowalski        A.Kowalski            ARCTIC         21:26   23:15
X.Dia             S.Bhatiani            DIS            23:20   01:41
M.Klaene         J.Dembicky, R.McMillan S-H            01:41   02:30
M.Klaene         J.Dembicky, R.McMillan DIS            02:30   04:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
JH05/R     20:24   21:24    0    0    0    0   0.0  1.0   0    0
CU05/R     21:24   23:15    0    0    0    0   0.0  1.9   0    0
OU08/R     23:15   01:40    0    0    0    0   0.1  2.4   0    0
EN01/W     01:40   05:49    0    0    0    0   0.1  4.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Reset controllers (alt, az, na2, agile)
Zero'ed rotator -0.175
Bad Az current (lots of oscillations). We think it may due to the reset of the az controller tonight possibly loosing the PID adjustments that were done earlier in the month. We just watched where the observers slewed to make sure the drives were not oscillating.
Russet checked collimation with the Shack-Hartmann
Russet checked DIS scattered light
I did throughput measurements with DIS
PG1708
BD28
I checked where the az drive currents became unhappy (oscillate rapidly +/-).
Detailed engineering email sent out to engineering staff
                    ------- 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
--------------------------------------------------------------------------
 19:34 ecamera    868(  724) 215  33  16.8 19.3 20.6 17.9 23.8   ND3  2.80
 20:43 arctic   639( 1388)  20  72  17.7 17.7 18.8 17.4 23.8   ROSA_3500  1.70
 20:44 NA2gdr  5725(35725)  20  72  17.9 17.7 18.8 17.4 23.8   clear  1.70
 22:29 dcamera    435( 1053) 174  62  19.7 18.0 18.8 18.0 23.8   --  1.65
 01:02 shack   540( 1721) 122  56  17.6 18.2 18.8 18.2 23.8   --  1.80
 02:01 dcamera    401( 1014) 214  49  18.4 17.7 18.3 17.7 23.8   --  1.20
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    80    35      8   262    (W)   1349  ptly cldy   none
     17:00    81    35      6   253  (WSW)   1252  ptly cldy   none
     18:00    78    35      5   201  (SSW)   1147 mstly clr    none
     19:00    69    36      7    97    (E)   1251 mstly clr    none
     20:00    63    38     26   129   (SE)   1013 mstly clr    none
     21:00    62    35     27   131   (SE)    634 mstly clr    none
     22:00    65    31     11   133   (SE)    610 mstly clr    none
     23:00    66    32     13   161  (SSE)   1011    clear     none
     00:00    67    31     13   199  (SSW)   1331    clear     none
     01:00    68    31     12   182    (S)   1184    clear     none
     02:00    64    33     12   177    (S)   1144    clear     none
     03:00    65    34     13   180    (S)   1287    clear     none
     04:00    64    37     11   184    (S)   1465    clear     none
     05:00    62    36     13   172    (S)   1265    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