Subject: 3.5m Night Log 20210921
From: dembicky@apo.nmsu.edu
Date: Wed, 22 Sep 2021 12:42:21 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, September 21, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU01  J.Wisniewski      J.Wisnewski, Shubham,  J.Roberts
UW12  B.Morris          B.Morris, S. Hawley
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU01  ARCTIC         19:09   00:11
UW12  ECHELLE        00:27   06:17
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU01/R      19:09  01:10    0    0    0    0   0.6  5.5   0    0
UW12/R      01:10  06:43    0    0    0    0   0.0  5.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Closed DIS blue vacuum at 21:00 when dome air temps dropped below 8C.  Pump was fine.
OU program finished a little early and gave the remainder of their time to UW program.
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
--------------------------------------------------------------------------
 19:30 arctic   734( 1576) 200  60   8.7 12.5 12.7 12.8 11.3   SDSS-I  2.30
 00:36 ecamera    389( -191) 272  67   5.9  5.8  6.6  5.8  5.9   ND2  2.50
 03:24 ecamera    330( -233) 174  53   8.4  6.2  6.4  6.6  7.9   clear  1.45
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    60    37      9   253  (WSW)   3446    clear     none
     17:00    63    37      4   263    (W)   2948    clear     none
     18:00    57    36      2   271    (W)   2408    clear     none
     19:00    50    39     10    64  (ENE)   1554    clear     none
     20:00    47    36     24    69  (ENE)   1526    clear     none
     21:00    45    35     28    73  (ENE)   1591    clear     none
     22:00    45    35     21    73  (ENE)   1768    clear     none
     23:00    44    36     22    77  (ENE)   1927    clear     none
     00:00    43    35     23    61  (ENE)   2415    clear     none
     01:00    43    35     17    71  (ENE)   2070    clear     none
     02:00    42    35     17    60  (ENE)   2011    clear     none
     03:00    42    35     11    60  (ENE)   1871    clear     none
     04:00    47    36      7     7    (N)   1884    clear     none
     05:00    48    36      2   333  (NNW)   1828    clear     none
     06:00    45    35      8    21  (NNE)   1813    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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