Subject: 3.5m Night Log 20220914
From: ajt@apo.nmsu.edu
Date: Thu, 15 Sep 2022 12:48:13 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, September 14, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
LA01  D.Thompson        D.Thompson, M.Hoffmann, R.Hill
GS02  D.Gies            K.Shepard
LA01  D.Thompson        D.Thompson, M.Hoffmann
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
LA01  HSAR           19:30   21:43
GS02  ECHELLE        22:00   00:35
GS02  ECHELLE        02:01   03:59
LA01  HSAR           04:05   05:09
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
LA01/O      19:19  22:04    0    0    0    0   2.5  0.2   0    0
GS02/R      22:04  03:54    0   1.4   0    0   0.0  4.4   0    0
LA01/O      03:54  06:39    0   1.7   0    0   0.0  1.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
The night started off mostly clear and we saw some satellites!
Clouds formed right over us at 00:20, and we closed at 00:35 because they were both low and very thick. Opened back up at 02:00 when we could see stars again.
Closed at 05:09 due to low clouds and high humidity. Conditions did not improve so we did not reopen.
HSAR focused at 750 at start of night. 403 seemed fine at the end of the 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
--------------------------------------------------------------------------
22:06 ecamera    403(  -60) -23  38  12.1 12.1 12.6 11.9 12.1   ND3  0.77
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    60    45     10   262    (W)    344 mstly clr    none
     17:00    60    47      8   261    (W)    273 mstly clr    none
     18:00    59    46     10   192  (SSW)    328 mstly clr    none
     19:00    55    48      9   216   (SW)    406    clear     none
     20:00    54    47      5   187    (S)    536    clear     none
     21:00    54    47     10   213  (SSW)    656    clear     none
     22:00    54    47      9   215   (SW)    881    clear     none
     23:00    54    47     10   193  (SSW)   1028    clear     none
     00:00    53    46     11   208  (SSW)    972 mstly cldy   none
     01:00    54    46     12   212  (SSW)    679 mstly cldy   none
     02:00    53    46      9   226   (SW)    544  ptly cldy   none
     03:00    53    46      8   219   (SW)    519  ptly cldy  humid
     04:00    52    46     10   228   (SW)        mstly cldy  humid
     05:00    52    47      9   220   (SW)        mstly cldy  humid
     06:00    51    48      8   207  (SSW)         ptly cldy  humid
     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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