Subject: 3.5m Night Log 20191225
From: cgray@apo.nmsu.edu
Date: Thu, 26 Dec 2019 11:18:51 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, December 25, 2019
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
EN01  B.Ketzeback       C.Gray, R.McMillan
OU03  J.DerKacy         J.DerKacy
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  DIS            --:--   --:--
OU03  DIS            --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/W      17:12  00:10   7.0  0.0   0    0    0    0    0    0
OU03/R      00:10  06:55   6.8  0.0   0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
Well, there was no visit from Santa this year....again. Though, I think he at least thought about us as there was definitely reindeer poop outside.
We had fog all afternoon with clouds rolling over. The lightning arresters had ice on them but, even if they hadn't, we wouldn't have been able to open. The humidity stayed high all night can I called it quits when the user couldn't use the remaining time.
As most of the engineering was done last week and we weren't able to collimate due to the weather, Russet checked the DIS scattered light and that was it.
                    ------- 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    29    28     14   263    (W)          cloudy     fog
     17:00    27    26     13   262    (W)          cloudy     fog
     18:00    27    26     13   275    (W)        mstly cldy   none
     19:00    26    26     13   266    (W)        mstly cldy  humid
     20:00    26    25     11   264    (W)        mstly cldy  humid
     21:00    27    26     15   265    (W)         ptly cldy  humid
     22:00    26    26     13   267    (W)        mstly clr   humid
     23:00    26    25     11   265    (W)           clear    humid
     00:00    26    24     12   265    (W)           clear    humid
     01:00    26    25     11   265    (W)           clear    humid
     02:00    26    24     12   262    (W)           clear    humid
     03:00    26    24      8   264    (W)           clear    humid
     04:00    26    24     11   267    (W)           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.
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