Subject: 3.5m Night Log 20240106
From: cgray@apo.nmsu.edu
Date: Sun,  7 Jan 2024 13:07:48 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, January 06, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU01  G.Jewett          A.Kilic, G.Jewett
AP01  S.Merkowitz       R.McMillan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU01  ARCTIC         17:21   22:21
OU01  KOSMOS         22:37   05:27
AP01  APOLLO         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU01/R      17:21  05:58    0   0.5   0    0   9.9  2.2   0    0
AP01/R      05:58  06:58    0   1.0   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out clear but with not great seeing, though the seeing was at least consistent the whole night! Clouds started rolling in before midnight and started to become a problem after 4am. By 5:390, OU01 gave up and AP01 wasn't able to observe at all.
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
--------------------------------------------------------------------------
 18:00 arctic   318(  492)  -3  32  -6.8 -5.3 -5.3 -5.6 -6.1   BG40  1.68
 20:19 arctic   387(  465) 117  59  -6.7 -6.9 -6.1 -6.7 -7.1   BG40  1.69
 22:52 kosmos   233(  246)  79  45  -6.6 -7.4 -6.9 -7.2 -6.8   --  1.65
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    22     9     10   292  (WNW)    210    clear     none
     17:00    20     8      6   299  (WNW)    151    clear     none
     18:00    20     7     10   282  (WNW)    181    clear     none
     19:00    20     8     10   265    (W)    130    clear     none
     20:00    21     4     12   264    (W)    172    clear     none
     21:00    20     9     10   255  (WSW)    197    clear     none
     22:00    20     9     15   240  (WSW)    202 mstly clr    none
     23:00    20     8     18   216   (SW)    188 mstly clr    none
     00:00    20     7     19   224   (SW)    167  ptly cldy   none
     01:00    24    -2     20   236   (SW)    209  ptly cldy   none
     02:00    24    -7     12   253  (WSW)    273  ptly cldy   none
     03:00    24    -4     22   243  (WSW)    232 mstly cldy   none
     04:00    24    -5     20   237  (WSW)    206 mstly cldy   none
     05:00    25    -6     19   233   (SW)    188   cloudy     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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