Subject: 3.5m Night Log 20200831
From: cgray@apo.nmsu.edu
Date: Tue,  1 Sep 2020 12:40:26 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, August 31, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY02  M.Brotherton      A.Cavanaugh
CU02  Z.Berta-Thompson  J.Libby-Roberts
CU03  Y.Notsu           Y.Notsu
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY02  TSPEC          --:--   --:--
CU02  DIS            --:--   --:--
CU03  ECHELLE        2:42    06:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY02/R      19:37  21:40   0.0  2.0   0    0    0    0    0    0
CU02/R      21:40  01:10   0.0  3.5   0    0    0    0    0    0
CU03/R      01:10  06:30    0   1.5   0    0   0.5  3.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out with clouds and then some sprinkles. I didn't think we'd be able to open tonight but things cleared enough to open a little before 3am. Seeing was good but we fought through clouds for the rest of the night.
No problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 02:48 ecamera    261( -220) 232  67  13.2 14.3 14.6 14.3 13.3   ND1  0.87
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    66    34      6   267    (W)    649   cloudy     none
     17:00    65    34      3   255  (WSW)    656   cloudy     none
     18:00    68    35      9   259    (W)    707 mstly clr    none
     19:00    64    34     17   241  (WSW)    727  ptly cldy   none
     20:00    63    33     15   239  (WSW)    670   cloudy   lt rain
     21:00    61    34     15   227   (SW)    812   cloudy     none
     22:00    60    34     10   262    (W)   1242   cloudy     none
     23:00    58    32      4   192  (SSW)    916   cloudy     none
     00:00    59    33      3   262    (W)    864   cloudy     none
     01:00    58    33      1   222   (SW)    775  ptly cldy   none
     02:00    56    31      3   223   (SW)    760  ptly cldy   none
     03:00    56    31      4   266    (W)    572  ptly cldy   none
     04:00    55    31      2   268    (W)    559 mstly cldy   none
     05:00    55    31      1   324   (NW)    814 mstly cldy   none
     06:00    54    28      8   334  (NNW)    566 mstly 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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