Subject: 3.5m Night Log 20210527
From: decolib@apo.nmsu.edu
Date: Fri, 28 May 2021 12:46:04 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, May 27, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
EN01  B.Ketzeback       D.DeColibus,A.Townsend,R.McMillan,D.Buzasi
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  ARCTIC         20:10   22:45
EN01  ECHELLE        22:49   23:21
EN01  ARCTIC         23:25   23:58
EN01  SHACK          00:05   00:59
EN01  ARCTIC         01:06   01:41
EN01  APOLLO         01:43   02:00
EN01  GUIDER         02:05   04:55
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/W      20:12  05:48    0    0    0    0   1.7  7.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus, A.Townsend, R.McMillan
This was a clear and productive night, although somewhat frustrating given the prevalence of motion errors and altitude drive oscillations. See the engineering email(s) for details.
                    ------- 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
--------------------------------------------------------------------------
 21:33 arctic   540( 1210) -38  45  14.9 15.1 15.7 14.8 14.8   SDSS_r  0.75
 23:01 ecamera    424(  -34) -63  44  15.0 14.5 15.0 14.2 14.9   ND1  1.20
 23:31 arctic   525( 1186) -65  25  14.9 14.5 15.1 14.4 15.1   SDSS_i  1.02
 00:14 shack   475( 1628)  45  81  13.4 14.1 14.7 14.0 13.9   --  1.00
 02:14 guider   387(  984)  95  59  14.0 13.7 14.4 13.6 13.9   Clear  1.04
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    20     13   260    (W)        mstly cldy   none
     17:00    64    21     15   236   (SW)         ptly cldy   none
     18:00    63    19     12   274    (W)        mstly clr    none
     19:00    64    20     11   257  (WSW)           clear     none
     20:00    60    16     11   253  (WSW)           clear     none
     21:00    59    15     14   219   (SW)           clear     none
     22:00    57    13     16   243  (WSW)           clear     none
     23:00    59    15      9   239  (WSW)           clear     none
     00:00    57    13      9   225   (SW)           clear     none
     01:00    57    13      3   237  (WSW)           clear     none
     02:00    58    15      6   262    (W)           clear     none
     03:00    58    15     10   270    (W)           clear     none
     04:00    58    12      7   259    (W)           clear     none
     05:00    57    12      6   274    (W)           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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 2.6.0