Subject: 3.5m Night Log 20250115
From: ajt@apo.nmsu.edu
Date: Thu, 16 Jan 2025 11:30:16 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, January 15, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM01  C.Gray            C.Gray
EN01  B.Ketzeback       A.Townsend,R.McMillan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM01  ECHELLE        17:29   20:59
EN01  ARCTIC         21:05   22:03
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM01/RD     17:29  21:10    0    0    0    0   1.8  1.7   0    0
EN01/W      21:00  06:57    0   9.0   0    0   0.0  1.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend,R.McMillan
Windows restarts on obs2 and alcor, had to log back into both machines.
Thin clouds at start of the night, got really thick by 22:00, not good for remaining on sky engineering tasks.
NM01 did some drop-in science at the start of the night!
Engineering tasks tonight:
- Filter and slit setups for upcoming observations
- ARCTIC diffuser check: rotation not working as intended, not recommended for observations
- Documentation!
                    ------- 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
--------------------------------------------------------------------------
 17:33 ecamera    587(   39) 105  61   2.1  3.2  2.5  3.2  2.5   ND3  0.92
 18:46 ecamera    340( -283) -55  29   0.7  1.1  1.5  1.1  1.4   ND3  1.37
 21:49 arctic   298(  710)  88  62   2.1  0.3  1.3  0.1  1.1   SDSS_i  1.15
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    37    -4      1   215   (SW)    329 mstly clr    none
     17:00    37   -11      9    10    (N)    161 mstly clr    none
     18:00    32    -4      4     5    (N)    264  ptly cldy   none
     19:00    34    -9      2   345  (NNW)    217 mstly cldy   none
     20:00    36   -16      1   245  (WSW)    177 mstly cldy   none
     21:00    35   -10      1   217   (SW)    240 mstly cldy   none
     22:00    34    -7      2   201  (SSW)    287 mstly cldy   none
     23:00    33     3      5   189    (S)    410 mstly cldy   none
     00:00    37   -15      1   148  (SSE)    229 mstly cldy   none
     01:00    36   -15      3   191    (S)    197  ptly cldy   none
     02:00    36   -16      2   155  (SSE)    206  ptly cldy   none
     03:00    37   -14      4   181    (S)    202  ptly cldy   none
     04:00    37   -15      6   147  (SSE)    157  ptly cldy   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: 3.1.5