Subject: 3.5m Night Log 20180217
From: cgray@apo.nmsu.edu
Date: Sun, 18 Feb 2018 12:16:28 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, February 17, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
J.Wisniewski      J.Wisniewski,         ARCTIC         18:36   00:03
              G.Stefansson, S.Mahadevan
E.Bellm           Z.Golkhou             DIS            00:18   01:33
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
OU01/R     17:59   00:10    0   0.6   0    0   4.4  1.2   0    0
UW02/R     00:10   06:35   5.0   0    0    0   1.4  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
dcam image showed the strange horizontal read out noise. I sent a PR.
Due to the fact that we lost power and site air last night, Russet and I relaxed the primary mirror during checkout.  The mirror actually looked good before relaxing but Russet wanted to give me some practice.  I had far too much fun hanging on the truss!  The tertiary mirror was not pointing at the NA2 port and we homed it.  No time was lost for this because we weren’t able to open due to the weather.
Things were not good weather wise, though to be honest I'm surprised we were even able to open.  A half was able to observe for most of their time (and with moderately good seeing!) but B half didn't have much hope.  The clouds became extremely thick near 1:30 am and we finally closed.  Then the fog started rolling in around 4 am (thankfully, it was pirate free). We were never able to reopen.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 18:42 arctic   550(  645)  -8  79   3.1  4.9  4.9  5.1  4.2   SDSS_i  1.07
 00:31 dcamera    441(  270)  63  68   3.1  2.6  3.2  2.7  2.3   --  1.19
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                  1   224   (SW)    239   cloudy    humid
     17:00                  1   198  (SSW)    150   cloudy    humid
     18:00                  3   277    (W)    101   cloudy     none
     19:00                  2   257  (WSW)     89   cloudy     none
     20:00                  6   191    (S)     79   cloudy     none
     21:00                  7   217   (SW)    101   cloudy     none
     22:00                  7   202  (SSW)    108   cloudy     none
     23:00                 12   221   (SW)     90   cloudy     none
     00:00                 13   239  (WSW)     92   cloudy     none
     01:00                 20   228   (SW)     86   cloudy     none
     02:00                 20   258  (WSW)     70   cloudy    humid
     03:00                 17   244  (WSW)     74   cloudy    humid
     04:00                 15   264    (W)     90   cloudy     fog
     05:00                 23   255  (WSW)          cloudy     fog
     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 STATUS
    Telescope drives operational. Current TCC version: 1.2.4
    Current TUI version: 2.6.0