Subject: 3.5m Night Log 20201230
From: trudyk@apo.nmsu.edu
Date: Thu, 31 Dec 2020 14:02:31 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, December 30, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS03  D.Gies            K.Shepard
CU05  J.Dexter          J.Dexter
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS03  ECHELLE        17:16   00:10
CU05  TripleSpec     00:14   06:55
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS03/R      17:16  00:10    0    0    0    0   0.4  6.5   0    0
CU05/R      00:10  06:57    0    0    0    0   0.0  6.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started partly cloud and cold. Seeing was bad with winds from the SE. Around 19:15 winds started to rise high enough to institute pointing restrictions. Wind dropped around 20:30. Seeing improved after midnight. Clouds began to form over the mountain around 03:00. The clouds did not stop us. 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
--------------------------------------------------------------------------
 17:28 ecamera    423(-1028)  79  61  -7.8 -6.4 -6.0 -6.6 -7.4   ND4  2.45
 21:13 ecamera    424(-1140)  77  56  -8.3 -8.9 -8.2 -9.1 -8.7   ND1  2.43
 00:39 tcamera    514(  320) 189  74  -6.2 -7.2 -7.2 -7.0 -6.3   -  1.24
           ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    22     5     15    68  (ENE)    130  ptly cldy   none
     17:00    20     4      5    68  (ENE)    154  ptly cldy   none
     18:00    18     1      4   320   (NW)    145  ptly cldy   none
     19:00    17    -2     14    72  (ENE)    158  ptly cldy   none
     20:00    17    -3      2   191    (S)    174 mstly clr    none
     21:00    15    -6     14    31  (NNE)    161 mstly clr    none
     22:00    17    -4      6    97    (E)    180 mstly clr    none
     23:00    18     2     18    72  (ENE)    121 mstly clr    none
     00:00    19     2     17    51   (NE)    127 mstly clr    none
     01:00    21    -6     19    62  (ENE)     43 mstly clr    none
     02:00    23    -9     19    64  (ENE)     31    clear     none
     03:00    23    -7     17    44   (NE)     60  ptly cldy   none
     04:00    23    -7     10    30  (NNE)     80  ptly cldy   none
     05:00    26   -10      2   241  (WSW)     62  ptly cldy   none
     06:00    23   -13      3   195  (SSW)     69  ptly cldy   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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