Subject: 3.5m Night Log 20191029
From: trudyk@apo.nmsu.edu
Date: Wed, 30 Oct 2019 12:37:05 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, October 29, 2019
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY01  C.Kobulnicky      J.Rothenberg
NM03  D.DeColibus       D.DeColibus
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY01  DIS            18:30   00:55
NM03  TripleSpec     01:08   06:22
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY01/R      18:24  01:10    0    0    0    0   5.3  1.4   0    0
NM03/R      01:10  07:11    0    0    0    0   6.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started clear, but winds began to pick up shortly before sunset. Winds died down around 20:00 but seeing got bad, despite the winds not being from the east.
Winds came back around 22:00 but not high enough to close. Unfortunately for David's program, the winds shifted west, and we were pointing directly into it. This caused problems with tracking. We finally had to turn away from Uranus, as we were pointing directly into 30mph gusts. We returned to the west around 04:00 after gusts had fallen under 20mph. No problems after that. We were open all night.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 18:45 dcamera    827(  959)  86  69   6.6  7.8  7.0  7.7  6.8 -    1.25
 19:56 dcamera    458(  558) 138  33   6.3  6.6  6.7  6.3  6.2   -  2.24
 01:44 tcamera    476(  687) 246  45   4.1  4.2  4.8  4.2  4.1   -  1.18
           ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    47    24     15   242  (WSW)    435 mstly clr    none
     17:00    47    25     25   234   (SW)    793 mstly clr    none
     18:00    45    21     26   231   (SW)    489 mstly clr    none
     19:00    45    18     18   228   (SW)    277    clear     none
     20:00    44    18     30   240  (WSW)    241    clear     none
     21:00    43    18     17   242  (WSW)    199    clear     none
     22:00    43    16     23   260    (W)    165    clear     none
     23:00    42    15     25   264    (W)    201    clear     none
     00:00    41    15     22   260    (W)    181    clear     none
     01:00    40    14     17   258  (WSW)    219    clear     none
     02:00    39    14     19   260    (W)    173    clear     none
     03:00    37    14     17   257  (WSW)    180    clear     none
     04:00    36    15     15   267    (W)    189    clear     none
     05:00    35    15     20   248  (WSW)           clear     none
     06:00    34    15     23   242  (WSW)    199    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.
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