Subject: 3.5m Night Log 20240903
From: tsutherland@apo.nmsu.edu
Date: Wed,  4 Sep 2024 12:40:03 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, September 03, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW06  C.Chandler        C.Chandler,M.Frissell
BY01  S.Call            S.Call
JH04  C.Ingebretsen     C.Ingebretsen,B.Bolin
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW06  ARCTIC         19:45   23:55
BY01  TripleSpec     02:42   03:22
JH04  ARCTIC         03:41   06:20
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW06/R      19:33  01:10   1.3   0    0    0   3.9  0.4   0    0
BY01/R      01:10  03:45   1.6   0    0    0   1.0  0.0   0    0
JH04/R      03:45  06:32    0    0    0    0   2.8  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland, A.Townsend
Fiducial error in az on second test slew
Focusing at a place with large airmass at start of night.
Closed at 23:55 due to humidity. There was a bat in the dome when we closed. I say we name this bat and keep him as an observatory pet.
Opened again at 02:45.
Airmass of 3 for last arctic focus at 04:15
                    ------- 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
--------------------------------------------------------------------------
 19:58 arctic   526( 1646) -43  41  12.1 15.0 14.1 14.9 13.3   SDSS_r  1.80
 21:47 arctic   200( 1177)  17  56  10.5 12.1 12.1 11.4 11.4   CUVR  1.35
 02:52 tcamera    501( 1531) 218  53  11.3 10.1 11.1  9.9 10.4   Ks  1.20
 04:14 arctic   273( 1139) 297  19   8.9  9.2 10.1  8.9  8.9   SDSS_r  2.98
 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    56    48      2   232   (SW)          cloudy     none
     17:00    63    50      6   259    (W)          cloudy     none
     18:00    60    48      5   264    (W)    381 mstly clr    none
     19:00    55    49      4   246  (WSW)        mstly clr   humid
     20:00    54    50      5   257  (WSW)           clear    humid
     21:00    54    48      3   281    (W)           clear    humid
     22:00    50    47      5   348  (NNW)           clear    humid
     23:00    52    47      9   356    (N)           clear    humid
     00:00    53    48      9   356    (N)           clear    humid
     01:00    52    48      9    39   (NE)           clear    humid
     02:00    51    47      1   242  (WSW)           clear     none
     03:00    53    32     10     4    (N)    387    clear     none
     04:00    49    41     14    64  (ENE)           clear    humid
     05:00    49    39     13    54   (NE)           clear    humid
     06:00    50    30     10    29  (NNE)    302    clear    humid
     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