Subject: 3.5m Night Log 20210323
From: decolib@apo.nmsu.edu
Date: Wed, 24 Mar 2021 12:04:54 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, March 23, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW03  K.Bell            K.Bell
WY01  M.Brotherton      J.McLane
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW03  Agile          19:27   19:51
WY01  TSPEC          --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW03/R      19:26  05:13   0.5  8.8   0    0   0.0  0.4   0    0
WY01/R      05:13  06:53   1.7   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
gcam needed a startNubs at checkout.
We attempted to open briefly at sunset, but were quickly thwarted by clouds, followed shortly thereafter by dust and wind. The wind didn't last, but the dust and thick clouds persisted for the entire night.
It finally started to snow lightly at 03:45. Judging by radar, all the actual snow accumulation happened downwind (northeast) of us, and by the time I went to bed at 06:15, there was still no snow accumulation on-site.
                    ------- 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    40     3     18   261    (W)   1504 mstly clr    none
     17:00    42     5     18   268    (W)   1389    clear     none
     18:00    41     4     21   238  (WSW)   1725    clear     none
     19:00    36     2     12   185    (S)   2506   cloudy     none
     20:00    36     2     11   183    (S)   3864   cloudy     dust
     21:00    37     5     24   201  (SSW)  13712   cloudy     dust
     22:00    38     5     20   200  (SSW)  10971   cloudy     dust
     23:00    37     3     21   232   (SW)  11713   cloudy     dust
     00:00    33     9      5   333  (NNW)   5253   cloudy     dust
     01:00    32    15      8   277    (W)   5318   cloudy     dust
     02:00    29    17      9   274    (W)   5790   cloudy     dust
     03:00    29    18      8   267    (W)   4625   cloudy   lt snow
     04:00    28    18     12   251  (WSW)   4395   cloudy   lt snow
     05:00    26    19     14   210  (SSW)   2945   cloudy   lt snow
     06:00    25    20     12   222   (SW)          cloudy   lt snow
     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