Subject: 3.5m Night Log 20230323
From: decolib@apo.nmsu.edu
Date: Fri, 24 Mar 2023 11:12:41 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, March 23, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU07  B.Oppenheimer     M.Croom
JH01  M.Guolo           M.Guolo
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU07  KOSMOS         19:25   01:10
JH01  KOSMOS         01:13   04:20
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU07/R      19:25  01:10    0    0   0.2   0   3.2  2.4   0    0
JH01/R      01:10  06:54   2.6   0    0    0   3.1  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky,D.DeColibus
Clear skies with an Aurora tonight!!! It wasn't visible to the naked eye, but showed up fairly clearly on the cloudcam as a reddish glow in the north.
Jack and I (David) split the shift tonight; Jack was on during A-half, I was on during B-half.
Kosmos hung during a readout at the very end of A-half.  Jack managed to recover the image and didn't have to restart the torrent, just the software according to the wiki. Jack sent an email about the error message.
Some thin clouds started forming over us starting around 02:00. They got thicker and after SDSS reported virga and precipitation started showing up on radar nearby, we closed up at 04:20. As the forecast did not look promising regarding clouds, we gave up around 05:15.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
CU07   KOSMOS     I/S      00:50  01:05   KOSMOS hung during readout.
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 19:55 kosmos   271(  335)  13  56  10.0  1.3  3.3  1.9  0.6   --  1.44
 01:27 klow   373(  292) 236  66  10.0 -1.6 -1.8 -2.4 -2.2   --  1.68
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 25   269    (W)           clear     none
     17:00                 23   273    (W)           clear     none
     18:00                 26   255  (WSW)   1253    clear     none
     19:00                 18   267    (W)   1815    clear     none
     20:00                 20   267    (W)   1725    clear     none
     21:00                 13   265    (W)   1544    clear     none
     22:00                 16   267    (W)   1088    clear     none
     23:00                 10   268    (W)    800    clear     none
     00:00                  9   290  (WNW)    789    clear     none
     01:00                 14   291  (WNW)    738    clear     none
     02:00                 17   297  (WNW)    776 mstly clr    none
     03:00                 13   288  (WNW)    798 mstly cldy   none
     04:00                 15   273    (W)    761 mstly cldy   none
     05:00                 22   273    (W)    841   cloudy     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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