Subject: 3.5m Night Log 20210122
From: decolib@apo.nmsu.edu
Date: Sat, 23 Jan 2021 13:45:12 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, January 22, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW02  Z.Ivezic          P.Yoachim
JH01  V.Chandra         V.Chandra
WY01  M.Brotherton      J.McLane
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW02  ARCTIC         --:--   --:--
JH01  DIS            --:--   --:--
WY01  TSPEC          --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW02/R      17:36  20:36    0   3.0   0    0   0.0  0.0   0    0
JH01/R      20:36  05:14   2.5  6.1   0    0   0.0  0.0   0    0
WY01/R      05:14  06:54   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
Following our altitude drive issue last night and Ed's fix today, we did multiple test slews to ensure the altitude drive was working. Aside from a single ~0.1 degree correction on the first slew, the telescope performed normally, including a few short NA2 guider tests of pointing and tracking of bright stars in daylight.
Unfortunately, we didn't actually get a chance to test it with science! High humidity and periods of fog persisted for the entire night, so we did not open at all.
                    ------- 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    38    28     11   227   (SW)    188 mstly clr   humid
     17:00    33    29     13   228   (SW)    236 mstly clr   humid
     18:00    31    29     12   229   (SW)           clear     fog
     19:00    31    30      9   188    (S)           clear    humid
     20:00    31    24     14   212  (SSW)           clear    humid
     21:00    30    30      8   210  (SSW)           clear     fog
     22:00    29    28     13   207  (SSW)           clear    humid
     23:00    30    26     15   244  (WSW)         ptly cldy  humid
     00:00    30    28     21   231   (SW)        mstly cldy  humid
     01:00    30    30     16   244  (WSW)         ptly cldy   fog
     02:00    30    30     17   236   (SW)         ptly cldy   fog
     03:00    30    30     18   254  (WSW)         ptly cldy   fog
     04:00    29    29     15   261    (W)         ptly cldy   fog
     05:00    28    28     19   266    (W)         ptly cldy  humid
     06:00    28    27     17   256  (WSW)         ptly cldy  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