Subject: 3.5m Night Log 20230201
From: ajt@apo.nmsu.edu
Date: Thu,  2 Feb 2023 13:45:19 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, February 01, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW04  J.Birky           J.Birky
NM10  A.Peck            A.Peck,H.Gallamore
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW04  ECHELLE        18:18   20:57
UW04  KOSMOS         21:01   00:02
NM10  ECHELLE        00:07   06:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW04/R      17:44  00:10    0  0.6    0    0   0.0  5.8   0    0
NM10/R      00:10  06:49    0    0    0    0   1.6  5.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
We stayed closed for about 40 minutes at the start of twilight due to nearby radar.
There were a few clouds at the start of the night but mostly it was completely clear. Temperatures dropped from around 0C in the evening to -4C by the end of the night, humidity ranged between 45 and 60%.
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 ecamera    249( -737)  49  68  10.0  1.4  1.8  2.2 -0.5   ND3  1.03
 21:07 kosmos   391(  363) -148  40  10.0 -0.9 -0.8 -1.6 -1.2   --  1.22
 00:14 ecamera    339( -759) -58  23  10.0 -1.7 -1.8 -2.6 -2.1   ND2  1.42
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                  9   219   (SW)    526 mstly clr    none
     17:00                  4   238  (WSW)    616 mstly clr    none
     18:00                  4    24  (NNE)    663 mstly clr    none
     19:00                 14    61  (ENE)    679    clear     none
     20:00                 16    33  (NNE)    785    clear     none
     21:00                 10    37   (NE)    767    clear     none
     22:00                 11    32  (NNE)    734    clear     none
     23:00                 16    32  (NNE)    647    clear     none
     00:00                 12    38   (NE)    701    clear     none
     01:00                 15    27  (NNE)    682    clear     none
     02:00                 17    20  (NNE)    668    clear     none
     03:00                 16    36   (NE)    635    clear     none
     04:00                 16    28  (NNE)    563    clear     none
     05:00                 15     2    (N)    497    clear     none
     06:00                  7    52   (NE)    492    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: 2.6.0