Subject: 3.5m Night Log 20210205
From: decolib@apo.nmsu.edu
Date: Sat,  6 Feb 2021 13:04:43 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, February 05, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY01  R.Steele          R.Steele,J.Moody
UW09  B.Morris          B.Morris,S.Hawley
AP01  T.Murphy          R.McMillan
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY01  DIS            18:25   00:03
UW09  ECHELLE        00:07   04:45
AP01  APOLLO         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY01/R      17:49  00:10    0    0    0    0   6.4  0.0   0    0
UW09/R      00:10  05:46    0   1.0   0    0   2.2  2.4   0    0
AP01/R      05:46  06:46    0   1.0   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
The night was beautifully clear and completely uneventful until we had to call it quits at 04:45 due to high winds. AP01 gave up at 06:00 because the forecast looked hopeless for the winds to improve before sunrise.
                    ------- 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
--------------------------------------------------------------------------
 18:34 dcamera    656(  521)   6  75   1.4  2.2  2.2  2.5  1.8   --  1.02
 00:12 ecamera    513( -669) -40  54  -1.3 -0.8 -0.2 -0.9 -1.1   Clear  1.11
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    37     2     13   316   (NW)    372    clear     none
     17:00    36     6     18   290  (WNW)    396    clear     none
     18:00    35    11     16   259    (W)    720    clear     none
     19:00    34     9     15   260    (W)    895    clear     none
     20:00    34     9     12   264    (W)    870    clear     none
     21:00    33    10     15   293  (WNW)    662    clear     none
     22:00    33    11      9   290  (WNW)    549    clear     none
     23:00    32     9     20   319   (NW)    471    clear     none
     00:00    30     9     16   348  (NNW)    427    clear     none
     01:00    30     9     16   343  (NNW)    229    clear     none
     02:00    29    11     18    14  (NNE)    210    clear     none
     03:00    27    11     11   358    (N)    196    clear     none
     04:00    27    12      9   354    (N)    216    clear     none
     05:00    25     9     22    22  (NNE)    348    clear     none
     06:00    24    10     23    22  (NNE)    420    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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