Subject: 3.5m Night Log 20240411
From: dembicky@apo.nmsu.edu
Date: Fri, 12 Apr 2024 12:33:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, April 11, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP01  S.Merkowitz       R.McMillan
NA01  A.Jaskot          A.Jaskot
BY03  A.Mosenkov        K.Adams, S.Bahr
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         19:39   20:39
NA01  KOSMOS         20:39   00:59
BY03  ARCTIC         01:16   06:12
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      19:39  20:39    0    0    0    0   0.0  1.0   0    0
NA01/R      20:39  01:10    0    0    0    0   1.8  2.8   0    0
BY03/R      01:10  06:28    0    0    0    0   5.3  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
No telescope problems tonight.  Some thin clouds at the end of the night but otherwise clear.
                    ------- 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
--------------------------------------------------------------------------
 19:47 APOLLO     350( 1946) -84  40   9.2 10.7 10.4 10.5  9.6   --  1.40
 21:00 klow   275( 1063) -134  41   9.2  9.0  9.3  8.5  8.7   --  1.10
 01:21 arctic   379( 1138) 240  54   8.2  7.5  8.1  7.4  7.7   SDSS_r  1.16
 01:23 NA2gdr -2617(35382) 240  53   8.4  7.5  8.1  7.3  7.6   clear  1.30
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    55    15     20   236   (SW)   1960    clear     none
     17:00    54    12     12   216   (SW)   1958    clear     none
     18:00    54    12     16   222   (SW)   1907    clear     none
     19:00    51     9      8   188    (S)   1899    clear     none
     20:00    48     7     12   209  (SSW)   2045    clear     none
     21:00    49     5     10   184    (S)   1940    clear     none
     22:00    48     7     13   182    (S)   2016    clear     none
     23:00    48     8     17   177    (S)   1957    clear     none
     00:00    48     9     18   169    (S)   2119    clear     none
     01:00    46     9     18   157  (SSE)   1890    clear     none
     02:00    47    11     17   168  (SSE)   1886    clear     none
     03:00    47    11     18   170    (S)   1975    clear     none
     04:00    46    12     14   168  (SSE)   2102 mstly clr    none
     05:00    46    12     14   179    (S)   2058 mstly clr    none
     06:00    47    12     16   176    (S)   2137 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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