Subject: 3.5m Night Log 20250223
From: ajt@apo.nmsu.edu
Date: Mon, 24 Feb 2025 13:49:31 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, February 23, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY02  S.Turner          S.Turner,D.Stephens
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY02  NICFPS         18:14   06:10
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY02/R      18:04  06:28    0    0    0    0  10.4  2.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Clear night with decent seeing, no telescope or instrument problems.
                    ------- 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
--------------------------------------------------------------------------
 18:25 NICFPS     354( 1457) 104  48   5.7  6.2  6.1  6.0  5.4   MK-J  1.62
 22:31 NICFPS     258( 1254)  58  53   3.7  4.1  4.7  3.7  3.5   MK-J  0.87
 03:56 NICFPS     303( 1303)  18  68   5.4  4.3  5.0  4.6  4.9   MK-J  0.94
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    43     8      9   350    (N)    453    clear     none
     17:00    43     6      6   341  (NNW)    438    clear     none
     18:00    42     5     10    10    (N)    373    clear     none
     19:00    42     3     13    20  (NNE)    369    clear     none
     20:00    44     1     17   352    (N)    363    clear     none
     21:00    44     3     15   360    (N)    292    clear     none
     22:00    40     2      7   309   (NW)    305    clear     none
     23:00    38     5     12   279    (W)    273    clear     none
     00:00    39     5     10   325   (NW)    342    clear     none
     01:00    41     4     15   311   (NW)    356    clear     none
     02:00    41     5      8   359    (N)    338    clear     none
     03:00    41     4     12   359    (N)    335    clear     none
     04:00    42     5     12     2    (N)    303    clear     none
     05:00    42     7     20    38   (NE)    268    clear     none
     06:00    44     9     11    36   (NE)    263    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