Subject: 3.5m Night Log 20230619
From: ajt@apo.nmsu.edu
Date: Tue, 20 Jun 2023 11:41:20 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, June 19, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW01  S.Hawley          J.Libby-Roberts
NM01  A.Hedlund         P.Gaulme
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW01  ARCTIC         21:05   02:01
NM01  ECHELLE        02:05   05:11
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW01/R      20:23  01:10    0   0.6   0    0   3.1  1.1   0    0
UW01/R      01:10  02:10    0    0    0    0   1.0  0.0   0    0
NM01/R      02:10  05:47    0    0    0    0   3.6  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
We held off on opening for a little bit to let the radar clear up. The clouds were troublesome for most of the night, but seeing was decent and we didn't have to close back up.
Dataq frozen before I arrived. Restarted at 21:20, still running as of 05:30 this morning.
Alt drive is humming during test slews when stationary below about 12 alt.
                    ------- 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
--------------------------------------------------------------------------
 21:11 arctic   336( 1299) 104  61  18.3 19.4 19.4 19.1 17.9   SDSS_g  1.27
 02:10 ecamera    464(  200) 136  73  16.9 16.9 17.4 16.9 16.9   Clear  0.86
 04:03 ecamera    445(  143) 236  69  16.4 16.0 16.6 16.0 16.0   Clear  0.96
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    74    33     13   264    (W)   1455  ptly cldy   none
     17:00    74    34     27   283  (WNW)   1990  ptly cldy   none
     18:00    69    32     15   262    (W)   1299  ptly cldy   none
     19:00    67    32     18   263    (W)   1565  ptly cldy   none
     20:00    66    31      9   275    (W)   1920  ptly cldy   none
     21:00    65    32     14   267    (W)   1754  ptly cldy   none
     22:00    64    32     22   290  (WNW)   1363  ptly cldy   none
     23:00    65    32     16   273    (W)   1321 mstly cldy   none
     00:00    64    32     13   275    (W)   1266 mstly clr    none
     01:00    63    32     10   279    (W)   1300  ptly cldy   none
     02:00    63    32     11   281    (W)   1168  ptly cldy   none
     03:00    62    31     11   278    (W)   1107  ptly cldy   none
     04:00    61    31     12   314   (NW)   1090 mstly clr    none
     05:00    62    32     13   332  (NNW)    979 mstly clr    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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