Subject: 3.5m Night Log 20230125
From: ajt@apo.nmsu.edu
Date: Thu, 26 Jan 2023 14:05:12 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, January 25, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU06  J.Bally           J.Bally
UV03  T.Thuan           Y.Izotov
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU06  ARCTIC         --:--   --:--
UV03  KOSMOS         00:08   06:08
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU06/R      17:38  00:10   2.0  4.6   0    0   0.0  0.0   0    0
UV03/R      00:10  06:53    0    0    0    0   6.7  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
KOSMOS had a calstage homing error that I fixed at start of night and I set camfoc to 3100 for almost -10C.
We had a 15mph wind limit again tonight and had to stay closed for almost all of A-half, wind gust speeds finally dropped around 23:40 and CU06 handed over the remaining time in A-half.
There were a few thin clouds at times but it was mostly clear.
Temperatures ranged from -6C in the afternoon to -11C by the end of the night and humidity rose from about 50% to almost 70% as temperatures fell.
                    ------- 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
--------------------------------------------------------------------------
 00:15 kosmos   428(  -17) -108  78  10.0 -9.3 -9.1 -9.3 -9.8   --  1.24
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 11   329  (NNW)    325    clear     none
     17:00                 12   324   (NW)    289    clear     none
     18:00                 17   351    (N)    209    clear     none
     19:00                 16    30  (NNE)    220    clear     none
     20:00                 14    36   (NE)    238    clear     none
     21:00                 12    24  (NNE)    200    clear     none
     22:00                 20    59  (ENE)    227 mstly clr    none
     23:00                 12    74  (ENE)    236    clear     none
     00:00                  8    89    (E)    238 mstly clr    none
     01:00                  9    86    (E)    205 mstly clr    none
     02:00                  7    93    (E)    216    clear     none
     03:00                  5   109  (ESE)    170    clear     none
     04:00                  7   139   (SE)    161    clear     none
     05:00                 11   133   (SE)    162    clear     none
     06:00                  6   153  (SSE)    174    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  ----------
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Current HUB version: v20171231_01
Current TUI version: 2.6.0