Subject: 3.5m Night Log 20220722
From: ajt@apo.nmsu.edu
Date: Sat, 23 Jul 2022 10:34:58 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, July 22, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH02  Z.Rustamkulov     Z.Rustamkulov
JH06  K.Worthen         K.Worthen
JH01  Z.Rustamkulov     Z.Rustamkulov
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH02  NICFPS         23:28   23:50
JH06  ECHELLE        --:--   --:--
JH01  ARCTIC         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH02/R      20:17  01:10   4.5   0    0    0   0.4  0.0   0    0
JH06/R      01:10  02:10   0.7  0.3   0    0   0.0  0.0   0    0
JH01/R      02:10  06:02    0   3.9   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Radar and dust counts were anticorrelated for most of the night.
We started off the night with radar and clouds. JH02 required no clouds for their observation. When it finally cleared up we opened, but were not able to stay open long before the 1 micron dust counts got too high.
Dust was high until a little after 02:00, but then the clouds and radar came back.
We gave up at about 03:45 when the transit had passed and the dust counts had risen too high again.
No M2 resets tonight.
Telescope parked at 104,70 in case of rain.
                    ------- 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
--------------------------------------------------------------------------
 23:39 NICFPS     571( 2027) 132  77  16.4 17.3 18.9 17.2 17.3   Z  1.20
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    50      1   158  (SSE)   3405  ptly cldy   none
     17:00    63    54      8   109  (ESE)   3382  ptly cldy   none
     18:00    66    48      7    90    (E)   2285  ptly cldy   none
     19:00    65    46     12   108  (ESE)   1470  ptly cldy   none
     20:00    64    50     12   124   (SE)   2698  ptly cldy   none
     21:00    64    48     17   111  (ESE)   2674  ptly cldy   none
     22:00    64    48     16   115  (ESE)   2974  ptly cldy   none
     23:00    63    48     20   126   (SE)   3385 mstly clr    dust
     00:00    62    48     14   112  (ESE)   4679 mstly clr    dust
     01:00    62    49     15   122  (ESE)   5847 mstly clr    dust
     02:00    61    47     10   102  (ESE)   5251  ptly cldy   dust
     03:00    60    45     10    93    (E)   3622 mstly clr    dust
     04:00    61    46     19   127   (SE)   4615 mstly cldy   dust
     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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