Subject: 3.5m Night Log 20230825
From: dembicky@apo.nmsu.edu
Date: Sat, 26 Aug 2023 12:26:57 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, August 25, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU05  Z.Berta-Thompson  Z.Berta-Thompson
UV03  A.Verbiscer       A.Verbiscer, A.Templeton
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU05  KOSMOS         23:00   01:00
UV03  ARCTIC         01:15   06:10
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU05/R      19:45  01:10    0   3.3   0    0   0.0  2.1   0    0
UV03/R      01:10  06:25    0    0    0    0   5.2  0.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
While doing cals with KOSMOS the disperser got stuck moving.  Amanda's procedure in the Wiki worked.  We were closed due to weather so no time was loss.
We finally opened around 23:00
Alt slips during test slew
going down
71.3-44.7
41.5
26.3
up
22.1-37.6
44.0-53.5
56.7-65.0
No problems tonight
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
CU05  KOSMOS     I/U      19:35   22:10 Disperser wheel timed out "Moving" and froze
                                        up instrument
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 23:11 kosmos   347( 1440)  84  71  15.3 15.9 16.5 15.7 15.6   --  1.13
 01:19 arctic   303( 1429) 216  33  15.6 15.0 15.5 14.7 15.0   SDSS_r  1.52
 01:21 NA2gdr -2478(35521) 215  32  15.6 15.0 15.5 14.7 15.1   R  1.04
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    66    56      5   191    (S)   1001   cloudy   lt rain
     17:00    58    54     20    69  (ENE)          cloudy   lt rain
     18:00    58    55     20    76  (ENE)          cloudy     none
     19:00    60    52     10    85    (E)   2801   cloudy     none
     20:00    58    52     12    87    (E)   3715   cloudy     none
     21:00    59    50      5    91    (E)   3458 mstly cldy   none
     22:00    59    49      1   131   (SE)   2427  ptly cldy   none
     23:00    60    43      3   118  (ESE)   3411 mstly clr    none
     00:00    61    32      2   161  (SSE)   2105 mstly clr    none
     01:00    60    46      3   194  (SSW)   2564 mstly clr    none
     02:00    59    50      1   218   (SW)   2644 mstly clr    none
     03:00    59    48      1    52   (NE)   2648    clear     none
     04:00    57    44      8    82    (E)   2573    clear     none
     05:00    56    44      8   107  (ESE)   2288    clear     none
     06:00    57    46     15   128   (SE)   2043    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.
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