Subject: 3.5m Night Log 20251203
From: tsutherland@apo.nmsu.edu
Date: Thu,  4 Dec 2025 11:08:17 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, December 03, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP02  S.Merkowitz       R.McMillan,T.Sutherland
JH02  M.MacGregor       M.MacGregor,G.Mendoza
BY05  E.Hintz           S.Call
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP02  APOLLO         --:--   --:--
JH02  NICFPS         --:--   --:--
BY05  TripleSpec     --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP02/R      17:06  22:00    0    4.9    0    0   0.0  0   0    0
JH02/R      22:00  00:10    0    2.2    0    0   0.0  0   0    0
BY05/R      00:10  06:42    0    6.5    0    0   0.0  0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland
Arctic didn't check out again with the checkout script. Arctic filter wheel was also showing a ?, Bill and Cary powercycled the robotics and that fixed it.
No telescope problems tonight.
It was cloudy for the first portion of the night and lightly snowed the rest. We never opened. Gave up at 03:30.
Morning fills are done.
                    ------- 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
--------------------------------------------------------------------------
           ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    36    29     19   250  (WSW)        mstly cldy   none
     17:00    35    27     15   260    (W)        mstly cldy   none
     18:00    34    28     13   264    (W)        mstly cldy   none
     19:00    33    28      7   280    (W)          cloudy   lt snow
     20:00    33    28     12   268    (W)          cloudy   lt snow
     21:00    30    26     13   323   (NW)          cloudy   lt snow
     22:00    29    26      5   271    (W)          cloudy   lt snow
     23:00    28    28     10   264    (W)          cloudy   lt snow
     00:00    28    28     20   261    (W)          cloudy   lt snow
     01:00    27    26     10   264    (W)          cloudy   lt snow
     02:00    27    26     17   261    (W)        mstly cldy lt snow
     03:00    26    24     12   262    (W)        mstly cldy lt snow
     04:00    26    23     16   275    (W)        mstly cldy lt snow
     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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 3.1.8