Subject: 3.5m Night Log 20190420
From: decolib@apo.nmsu.edu
Date: Sun, 21 Apr 2019 12:02:14 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 20, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene       D.DeColibus, R.McMillan  NICFPS         19:45   00:30
M.Klaene       D.DeColibus, R.McMillan  ARCTIC         00:40   06:02
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/W     19:45   01:10    0    0    0    0   1.4  4.0   0    0
EN01/W     01:10   06:18    0    0    0    0   0.0  5.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus, R.McMillan
Windy at the start of the night, but died down after sunset. Minor issue with the echelle tdscmd not responding properly; fixed with an ICC restart. Investigated problems with DIS Red ion pump; see PR for more details.
Started off with some service observing for the Oklahoma (OU) class using NICFPS, 19:45 to 21:10. Clouds then kept getting in the way. Observed again during the period 22:37-23:11.
Engineering tasks completed:
Attempted to characterize alt slip and az oscillation issue.
Throughput measurements.
                    ------- 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
--------------------------------------------------------------------------
 19:15 NICFPS     593( 1696)  59  63  12.2 13.8 14.1 13.2 12.6   MK-H  0.91
 23:47 arctic   602( 1190)  71  43  10.1 10.3 11.0 10.2 10.2   SDSS r  1.21
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    60    18     19   263    (W)    620    clear     none
     17:00    60    16     25   266    (W)   1128    clear     none
     18:00    59    16     28   268    (W)   1043 mstly clr    none
     19:00    58    15     29   260    (W)    928 mstly clr    none
     20:00    54    17     27   244  (WSW)    781  ptly cldy   none
     21:00    54    20     15   243  (WSW)    829  ptly cldy   none
     22:00    54    20     21   231   (SW)    624  ptly cldy   none
     23:00    53    20     26   265    (W)    595 mstly clr    none
     00:00    50    15     26   267    (W)    826    clear     none
     01:00    50    15     24   266    (W)    688    clear     none
     02:00    49    16     18   268    (W)    521    clear     none
     03:00    47    17     20   270    (W)    453    clear     none
     04:00    47    17     21   284  (WNW)    345    clear     none
     05:00    45    18     20   269    (W)    345    clear     none
     06:00    45    18     17   266    (W)    406    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