Subject: 3.5m Night Log 20230701
From: cgray@apo.nmsu.edu
Date: Sun,  2 Jul 2023 10:56:03 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, July 01, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY01  A.Cavanaugh       A.Cavanaugh
NM10  E.Nielsen         A.Peck, J.Klusmeyer
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY01  TSPEC          20:24   01:02
NM10  ECHELLE        01:05   02:50
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY01/R      20:24  01:10    0    0    0    0   0.0  4.8   0    0
NM10/R      01:10  05:50   1.0  2.0   0    0   0.0  1.7   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out clear with good seeing but then a thunderstorm to the east blew out and destroyed the seeing. Things were clear until about midnight when light clouds started rolling in. Things began to thicken and we had radar returns close to 3am and I closed. We were not able to reopen.
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
--------------------------------------------------------------------------
 20:43 tcamera    450( 1696) -22  78  18.9 22.4 22.0 22.2 20.2   Ks  1.00
 01:12 ecamera    441(  117) -36  44  15.5 15.2 15.9 15.1 15.3   ND1  1.25
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    74    30     13   271    (W)   1253    clear     none
     17:00    75    29     10   276    (W)   1080    clear     none
     18:00    73    29      9   286  (WNW)   1223    clear     none
     19:00    73    30     10   260    (W)   1254    clear     none
     20:00    69    27      6   259    (W)   1155    clear     none
     21:00    62    44     18    76  (ENE)   1977    clear     none
     22:00    61    47     15    89    (E)   1912    clear     none
     23:00    61    44     12    86    (E)   1751    clear     none
     00:00    60    43     13    91    (E)   1672  ptly cldy   none
     01:00    60    43     13    85    (E)   1583 mstly clr    none
     02:00    60    43     10   103  (ESE)   1735  ptly cldy   none
     03:00    60    43     12   119  (ESE)   1901 mstly cldy   none
     04:00    61    45     11   135   (SE)   1994 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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