Subject: 3.5m Night Log 20211121
From: dembicky@apo.nmsu.edu
Date: Mon, 22 Nov 2021 12:53:33 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, November 21, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS03  D.Gies            K.Shepard
OU01  J.Wisniewski      A.Lin, C.Canas
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS03  ECHELLE        18:08   22:45
OU01  ARCTIC         22:49   05:20
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS03/R      17:08  22:50   1.0   0    0    0   0.5  4.2   0    0
OU01/R      22:50  06:31    0    0    0    0   0.0  7.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
We had lots of clouds at sunset, by about an hour later things improved enough that we could open and get on the sky.
My observers finished their observatins at 18 deg twilght at 05:20.
                    ------- 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
--------------------------------------------------------------------------
 19:13 ecamera    189( -618)  37  54   1.0  0.8  1.9  0.8  1.2   ND3  1.69
 00:21 arctic   436(  734) 145  63   4.1  1.0  2.4  1.5  1.9   SDSS_r  0.98
 00:22 NA2gdr  2023(36023) 145  63   4.1  1.0  2.4  1.5  1.9   clear  1.10
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    35    22      7    81    (E)    653   cloudy     none
     17:00    32    22     13    78  (ENE)    593   cloudy     none
     18:00    34    21      8    36   (NE)    565 mstly cldy   none
     19:00    35    18      7    51   (NE)   1020  ptly cldy   none
     20:00    39    16      2   322   (NW)   1141  ptly cldy   none
     21:00    38    16      1   249  (WSW)   1218  ptly cldy   none
     22:00    38    15      1   215   (SW)   1712  ptly cldy   none
     23:00    36    14      1   156  (SSE)   1180  ptly cldy   none
     00:00    39    14      5   301  (WNW)    592  ptly cldy   none
     01:00    36    15      6   353    (N)   1506  ptly cldy   none
     02:00    37    12      4   348  (NNW)    614  ptly cldy   none
     03:00    39     5      6   358    (N)    473  ptly cldy   none
     04:00    42   -14      6   351    (N)    123  ptly cldy   none
     05:00    43   -18      6     4    (N)     76  ptly cldy   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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