Subject: 3.5m Night Log 20230530
From: cgray@apo.nmsu.edu
Date: Wed, 31 May 2023 11:58:55 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, May 30, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH02  M.Guolo           M.Guolo
AP01  S.Merkowitz       R.McMillan
CU04  J.Dexter          J.Dexter
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH02  KOSMOS         20:14   23:18
AP01  APOLLO         --:--   --:--
CU04  TripleSpec     01:45   05:45
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH02/R      20:14  00:10    0   0.9   0    0   0.0  3.0   0    0
AP01/R      00:10  01:10   0.0  1.0   0    0    0    0    0    0
CU04/R      01:10  05:48    0   0.6   0    0   2.2  1.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out with virga everywhere, but it cleared up just before sunset so we were able to open on time. However, it returned a little after 11pm and we closed up. It cleared again shortly before 2am and we were able to observe for the rest of the night.
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
--------------------------------------------------------------------------
 20:41 kosmos   458( 1251) 243  64  15.7 16.9 16.9 16.3 15.6   --  1.23
 01:50 tcamera    425( 1281) -26  58  14.6 13.9 14.3 13.8 14.1   Ks  1.19
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    66    25     10   185    (S)   1660  ptly cldy   none
     17:00    66    23     18   228   (SW)   1466  ptly cldy   none
     18:00    67    25     18   248  (WSW)   1616 mstly clr    none
     19:00    64    25     21   236   (SW)   1808 mstly clr    none
     20:00    60    25     16   208  (SSW)   1731 mstly clr    none
     21:00    59    23     10   221   (SW)   1780  ptly cldy   none
     22:00    59    22     11   231   (SW)   1675 mstly cldy   none
     23:00    59    22      9   232   (SW)   1799   cloudy     none
     00:00    59    23     10   224   (SW)   1782 mstly cldy   none
     01:00    58    23      9   223   (SW)   1777 mstly cldy   none
     02:00    58    25     11   262    (W)   1846 mstly clr    none
     03:00    56    27      5   260    (W)   2091 mstly clr    none
     04:00    54    27      9   321   (NW)   2099 mstly clr    none
     05:00    54    27      7   271    (W)   1958 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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