Subject: 3.5m Night Log 20240118
From: cgray@apo.nmsu.edu
Date: Fri, 19 Jan 2024 13:10:59 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, January 18, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU04  M.Kilic           M.Kilic
JH06  N.Dello           N.Dello
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU04  ARCTIC         17:31   00:08
JH06  ECHELLE        00:12   05:57
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU04/R      17:31  00:10    0    0    0    0   0.0  6.7   0    0
JH06/R      00:10  06:56    0    0    0    0   5.2  1.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The evening started out with intermittent clouds which cleared up before midnight, leaving us with beautiful skies! The seeing for B have was exceptional, hitting near site limit. Many comets were seen.
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
--------------------------------------------------------------------------
 18:47 arctic   471( 1059) -30  77   3.5  4.1  3.8  3.7  3.4   BG40  1.10
 00:16 ecamera    391( -116) 345  60   4.6  4.1  4.7  4.5  4.6   ND2  0.67
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    41    18      3   270    (W)    174 mstly clr    none
     17:00    40    19      4   332  (NNW)    283 mstly clr    none
     18:00    38    19      7   329  (NNW)    145  ptly cldy   none
     19:00    37    21      8   328  (NNW)    124 mstly cldy   none
     20:00    40    20     12   308   (NW)    153  ptly cldy   none
     21:00    40    21      7   342  (NNW)    150 mstly clr    none
     22:00    40    21     11   327  (NNW)    148 mstly clr    none
     23:00    40    21      7   313   (NW)    173    clear     none
     00:00    41    20      7   290  (WNW)    162    clear     none
     01:00    40    20      8   271    (W)    208    clear     none
     02:00    40    21      7   267    (W)    304    clear     none
     03:00    40    22      9   228   (SW)    261    clear     none
     04:00    38    22      8   230   (SW)    319    clear     none
     05:00    37    22      6   191    (S)    240    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: 3.1.3