Subject: 3.5m Night Log 20220424
From: decolib@apo.nmsu.edu
Date: Mon, 25 Apr 2022 11:28:32 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, April 24, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU03  J.DerKacy         J.DerKacy,Z.Yarbrough
GS01  M.Crenshaw        B.Meena,G.Polack
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU03  KOSMOS         20:13   01:00
GS01  KOSMOS         01:00   01:37
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU03/R      19:49  01:10    0    0    0    0   5.4  0.0   0    0
GS01/R      01:10  06:14   2.0  2.5   0    0   0.6  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
Clear and uneventful during A-half, but not so much during B-half.
The wind shifted to come from the east around midnight, and the dust started rising not long thereafter, so I switched to reversed fan configuration. However, the outside dust counts were spiking quickly enough to make me uncomfortable, and I closed up at 01:37. Around this time, Karen also reported pollen on her car, although I did not see any significant accumulation. The dust stayed high the rest of B-half, and by 04:30, the humidity was high too.
The prospects for reopening were slim to none before sunrise, so the observers called it a night at 05:00.
                    ------- 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
--------------------------------------------------------------------------
 20:23 kosmos   566( 1239)  88  70   7.8 10.2 10.3 10.0  9.6   --  1.13
 01:16 khigh   242(  702) 240  45   3.5  5.3  6.4  5.3  5.0   --  2.20
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    55    11     12   213  (SSW)   2445    clear     none
     17:00    52    10      9   306   (NW)   2572    clear     none
     18:00    52     7      8   267    (W)   2412    clear     none
     19:00    49     6      9   270    (W)   2605    clear     none
     20:00    45     5      5    19  (NNE)   2478    clear     none
     21:00    46     6      5   180    (S)   2616    clear     none
     22:00    46     7      8   194  (SSW)   2630    clear     none
     23:00    45     6      9   183    (S)   2740    clear     none
     00:00    45     6      7   174    (S)   2652    clear     none
     01:00    40     7     15    89    (E)   3067    clear     dust
     02:00    38    24      9    93    (E)   4870    clear     dust
     03:00    36    25     11    89    (E)   4696    clear     dust
     04:00    35    28     12    83    (E)   5426    clear    humid
     05:00    33    30     17    78  (ENE)           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: 2.6.0