Subject: 3.5m Night Log 20211015
From: ajt@apo.nmsu.edu
Date: Sat, 16 Oct 2021 13:18:18 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, October 15, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM04  S.Kovac           S.Kovac,C.Gray,B.Stemock
NM02  N.Chanover        N.Chanover,H.Gallamore
FG01  D.Buzasi          D.Buzasi
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM04  ECHELLE        18:38   20:12
NM02  NAIC           20:24   01:04
FG01  ECHELLE        01:16   06:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM04/R      18:38  20:18    0    0    0    0   0.0  1.7   0    0
NM02/O      20:18  01:10    0    0    0    0   0.0  4.9   0    0
FG01/R      01:10  07:00    0    0    0    0   3.7  2.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Clear skies all night!
FG01 finished about 15 minutes into twilight when the sky got too bright to continue.
I got a few motion error in altitude at as I was parking the telescope at 06:30. After cleaning the very smeared out remains of a moth off the alt drive this problem was resolved and I was able to park the telescope.
We had no other problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 18:54 ecamera    462(   31) 273  41   6.5  8.6  7.7  8.4  7.2   ND4  1.41
 01:24 ecamera    398( -292)  67  59   4.9  3.4  4.4  3.3  3.8   ND3  0.96
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    52    13      3   202  (SSW)   1076    clear     none
     17:00    48    11      3   235   (SW)   1159    clear     none
     18:00    46    10      1   205  (SSW)   1194    clear     none
     19:00    44    12     10   147  (SSE)   1262    clear     none
     20:00    40    16      5   182    (S)    845    clear     none
     21:00    39    15      5    82    (E)    807    clear     none
     22:00    40    13      2   116  (ESE)    883    clear     none
     23:00    40    14      1   132   (SE)    818    clear     none
     00:00    41    15      1   210  (SSW)   1081    clear     none
     01:00    41    12      1   276    (W)   1574    clear     none
     02:00    39    14      5   193  (SSW)    694    clear     none
     03:00    39    13      2   200  (SSW)    804    clear     none
     04:00    40    10      7   188    (S)   1601    clear     none
     05:00    41    11      3   103  (ESE)   1401    clear     none
     06:00    44     9      2   200  (SSW)    815    clear     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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