Subject: 3.5m Night Log 20220125
From: mcmillan@apo.nmsu.edu
Date: Wed, 26 Jan 2022 12:43:15 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, January 25, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
DD01  C.Gray            C.Gray,R.Angulo,A.Heinze,A.Bostroem
CU06  T.Brown           T.Brown,Y.Notsu
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
DD01  ARCTIC         17:40   19:49
DD01  DIS            19:58   21:29
DD01  ECHELLE        21:32   00:15
CU06  DIS            00:39   01:22
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
DD01/R      17:38  00:10    0    0    0    0   6.5  0.0   0    0
CU06/R      00:10  06:53   0.0  5.5  0.2   0   0.9  0.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
First half had thin to medium high clouds that were not too hard to shoot through.  Second half had clouds growing thicker and radar signals approaching from the north, until I decided to close due to precipitation threat.
I had difficulty mounting KOSMOS because the cart had been cranked too far forward so that it was difficult to get onto the mushrooms.  Also the hooks were attached in a way that was very difficult to disconnect.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
CU06     K        I/H      00:25  00:38   KOSMOS cart too far forward
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 18:15 arctic   449(  731)  -1  63  -0.1  0.7  1.5  0.5  0.8   sdss_r  0.99
 20:19 dcamera    478(  517) -20  33   0.2 -0.3  0.2 -0.3 -0.0   -  1.74
 21:40 ecamera    425( -434) -37  62   0.7 -0.2  0.3 -0.1  0.1   ND3  0.82
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    39    14     12   232   (SW)    352 mstly clr    none
     17:00    34    14     15   211  (SSW)    443 mstly clr    none
     18:00    32    14     13   199  (SSW)    518  ptly cldy   none
     19:00    32    15     15   208  (SSW)    473  ptly cldy   none
     20:00    32    16     16   215   (SW)    577  ptly cldy   none
     21:00    33    17     13   209  (SSW)    631  ptly cldy   none
     22:00    32    18     11   213  (SSW)    691  ptly cldy   none
     23:00    32    20     16   195  (SSW)    738  ptly cldy   none
     00:00    32    19     16   203  (SSW)    682  ptly cldy   none
     01:00    32    18      4   152  (SSE)    740   cloudy     none
     02:00    31    18     19   178    (S)    766   cloudy     none
     03:00    30    18     17   196  (SSW)    876   cloudy     none
     04:00    28    18     10   209  (SSW)   1047   cloudy     none
     05:00    28    18     15   225   (SW)    916   cloudy     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.
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