Subject: 3.5m Night Log 20221123
From: cgray@apo.nmsu.edu
Date: Thu, 24 Nov 2022 13:03:04 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, November 23, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM05  K.Sanderson       K.Sanderson
NM11  A.Dijeau          A.Dijeau
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM05  kosmos         17:07   21:15
NM11  kosmos         21:15   21:35
NM11  kosmos         23:05   05:22
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM05/R      17:07  21:15    0    0    0    0   4.2  0.0   0    0
NM11/R      21:15  06:33   2.7   0    0    0   6.6  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out clear, which was good since we were looking at really faint targets! But the seeing wasn't all that great and degraded as the night went on. Clouds moved in around 9pm, causing problems. Since the targets were so faint, NM11 wasn't able to observe anything useful for about 1.5hr and used the time to take cals. Clouds cleared and back to faint stuff! Then they came back fast with radar returns, so we closed up shortly before twilight.
NM05 and NM11 coordinated some time swaps, with NM05 donating 2.9 hrs so that NM11 could have more time on their faint targets.
No 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
--------------------------------------------------------------------------
 18:39 kosmos   443(  513)  14  51   1.7  1.4  2.2  1.6  1.5   --  1.25
 20:39 kosmos   569(  594) -44  55   0.8  0.5  1.4  0.8  0.7   --  1.40
 21:22 kosmos   551(  576) -101  43   0.6  0.3  1.0  0.5  0.6   --  1.56
 03:21 kosmos   462(  391) 112  60  -2.4 -1.5 -1.5 -2.4 -2.5   --  2.33
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    37    19     10   279    (W)    765    clear     none
     17:00    35    23     13   237  (WSW)    975    clear     none
     18:00    34    25     11   262    (W)   1235    clear     none
     19:00    35    24     17   225   (SW)   1196    clear     none
     20:00    35    21     14   253  (WSW)    991 mstly clr    none
     21:00    33    18     12   264    (W)    905 mstly cldy   none
     22:00    35    12     19   265    (W)    810 mstly cldy   none
     23:00    33    14     11   266    (W)   1420 mstly clr    none
     00:00    31    17      9     5    (N)   1172    clear     none
     01:00    30     6      8     7    (N)    536    clear     none
     02:00    31     4     14    37   (NE)    322    clear     none
     03:00    29     2     22    22  (NNE)    312    clear     none
     04:00    27    -6     16    19  (NNE)    430 mstly clr    none
     05:00    27   -10     11    86    (E)    172 mstly 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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