Subject: 3.5m Night Log 20210731
From: decolib@apo.nmsu.edu
Date: Sun,  1 Aug 2021 10:39:41 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, July 31, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM02  K.Sanderson       K.Sanderson
UW12  B.Morris          B.Morris,S.Hawley
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM02  DIS            --:--   --:--
UW12  ECHELLE        --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM02/R      20:11  01:10   4.5  0.5   0    0   0.0  0.0   0    0
UW12/R      01:10  06:09    0   5.0   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
Clouds and rain plagued us all night, and we never opened.
I put the 5" slit in the DIS slit wheel, but quickly ran into problems with homing the slit wheel motors. I power-cycled the DIS robotics, and the problem continued; it also started claiming that it couldn't home the turret. After consultation with Bill and Russet, it turns out that the instrument robotics need to be homed in a very specific order...and the listed order on the obs-spec wiki was wrong. We got the instrument back up and running and I updated the wiki. We didn't lose any valuable time on sky, given the clouds and rain.
With no prospects of opening the rest of the night, we gave up at 04:15.
                    ------- 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    53    48     16    78  (ENE)          cloudy   lt rain
     17:00    54    50     12    93    (E)        mstly cldy  humid
     18:00    59    46     12   153  (SSE)    370 mstly cldy   none
     19:00    61    49     10   188    (S)    520  ptly cldy   none
     20:00    59    47     10   186    (S)    479 mstly cldy   none
     21:00    57    49      6   193  (SSW)    477   cloudy   lt rain
     22:00    58    48      1   244  (WSW)    435   cloudy   lt rain
     23:00    58    48      3   258  (WSW)    417   cloudy     none
     00:00    60    47      3   328  (NNW)    401   cloudy     none
     01:00    59    48      5   266    (W)    479   cloudy     rain
     02:00    55    49     13    29  (NNE)    561   cloudy   lt rain
     03:00    58    47      8    37   (NE)    537   cloudy     none
     04:00    58    47      8    31  (NNE)    584   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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