Subject: 3.5m Night Log 20230529
From: cgray@apo.nmsu.edu
Date: Tue, 30 May 2023 11:48:30 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, May 29, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM08  E.Nielsen         E.Nielsen, A.Smith
CU02  A.Kowalski        J.Libby-Roberts
UW09  B.Morris          S.Hawley, L.Hebb
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM08  ECHELLE        20:13   21:31
CU02  ARCTIC         21:35   01:38
UW09  ECHELLE        01:42   05:25
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM08/R      20:13  21:40    0    0    0    0   0.0  1.5   0    0
CU02/R      21:40  01:50    0    0    0    0   0.0  4.2   0    0
UW09/R      01:50  05:48    0    0    0    0   2.7  1.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
We had a beautiful, clear night all night with great seeing!
No problems tonight with the 3.5m, but Arcsat had problems all 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
--------------------------------------------------------------------------
 20:17 ecamera    483(  269)  36  62  15.1 17.8 17.3 16.8 15.9   ND3  0.73
 21:41 arctic   417( 1195)  80  64  14.6 15.5 16.0 15.0 14.6   sdss-r  1.08
 01:50 ecamera    363(  -75) 179  47  13.8 12.9 13.4 12.6 13.3   Clear  1.08
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    69    20     18   222   (SW)   1162    clear     none
     17:00    69    18     11   263    (W)   1192    clear     none
     18:00    67    19     10   238  (WSW)   1109    clear     none
     19:00    65    18      7   252  (WSW)   1268    clear     none
     20:00    61    14      6   259    (W)   1178    clear     none
     21:00    59    13      4   260    (W)   1201    clear     none
     22:00    58    16     11   265    (W)   1561    clear     none
     23:00    58    17      7   268    (W)   1642    clear     none
     00:00    58    19      9   262    (W)   1832    clear     none
     01:00    58    20      7   263    (W)   1850    clear     none
     02:00    57    24      7   263    (W)   2003    clear     none
     03:00    56    25      8   294  (WNW)   2040    clear     none
     04:00    56    25      8   311   (NW)   1958    clear     none
     05:00    56    26      9   315   (NW)   1912    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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