Subject: 3.5m Night Log 20251205
From: mcmillan@apo.nmsu.edu
Date: Sat,  6 Dec 2025 13:34:55 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, December 05, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM04  A.Peck            A.Peck,E.Nielsen
JH02  M.MacGregor       M.MacGregor,C.Ingebretson,G.Mendoza,C.Gray
GS02  D.Gies            D.Gies+students
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM04  ECHELLE        17:20   21:52
JH02  NICFPS         21:55   00:09
GS02  ECHELLE        00:15   06:01
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM04/R      17:06  22:00    0    0    0    0   0.5  4.4   0    0
JH02/R      22:00  00:10    0    0    0    0   0.0  2.2   0    0
GS02/R      00:10  06:43    0    0    0   0.3  0.0  6.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
A lovely photometric night that started out with good seeing... and turned into a mix of
poor to awful seeing for most of the duration.  But it was productive nonetheless!
One echelle science image, unfortunately a longish exposure, came out with all zeroes.
But the students were checking every image and caught the problem right away, then
restarting the icc got it back quickly and the rest of the night was peaceful.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
GS02     E        E/S      10:28  10:45   Echelle images all zeroes
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 17:32 ecamera    524( -370) 197  53   0.1  0.0 -0.1 -0.2 -0.0   ND3  0.80
 22:05 NICFPS     446(  923)  50  38  -0.4 -0.8 -0.7 -1.2 -0.8   MK-H  2.65
 00:30 ecamera    427( -506) -70  34  -0.9 -1.1 -1.1 -1.7 -0.9   ND3  1.86
 02:14 ecamera    464( -455)   8  42   0.8 -0.7 -0.4 -0.8  0.8   ND2  2.71
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    30     4      2   335  (NNW)    158    clear     none
     17:00    32    -7      8     5    (N)     98    clear     none
     18:00    30    -5      4     2    (N)    110    clear     none
     19:00    31     7     14   347  (NNW)    302    clear     none
     20:00    31    12      8   358    (N)    314    clear     none
     21:00    31    14     13    18  (NNE)    351    clear     none
     22:00    32     8      6    36   (NE)    190    clear     none
     23:00    31    10     11     0    (N)    170    clear     none
     00:00    30    13     16     7    (N)    195    clear     none
     01:00    30    16     13     8    (N)    102    clear     none
     02:00    33    15      9     4    (N)     40    clear     none
     03:00    34    14     15   340  (NNW)     42    clear     none
     04:00    34    13     14   313   (NW)     31    clear     none
     05:00    32    15     15   326   (NW)     40    clear     none
     06:00    33    15     19   319   (NW)     76    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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 3.1.8