Subject: 3.5m Night Log 20230419
From: decolib@apo.nmsu.edu
Date: Thu, 20 Apr 2023 12:15:18 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, April 19, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU04  G.Jewett          G.Jewett
UW08  C.Chandler        C.Chandler,W.Oldroyd
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU04  KOSMOS         --:--   --:--
UW08  ARCTIC         04:45   05:55
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU04/R      19:45  01:10   5.4   0    0    0   0.0  0.0   0    0
UW08/R      01:10  06:19   3.9   0    0    0   1.2  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
Windy and dusty during the afternoon and evening. While the wind generally died down after sunset, the dust and clouds got worse and worse. The clouds started to thin out after 3 AM, but the dust persisted.
We were getting ready to call the whole night lost when the dust suddenly dropped below limits around 04:30, so UW08 got a little bit of data!
                    ------- 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
--------------------------------------------------------------------------
 04:52 arctic    70(  419) -14  20  10.0  5.6  7.8  5.6  4.9   VR  1.84
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 23   235   (SW)   3484    clear     dust
     17:00                 15   258  (WSW)   3862    clear     dust
     18:00                 16   261    (W)   2983 mstly clr    dust
     19:00                 30   257  (WSW)   3958 mstly clr    dust
     20:00                 21   254  (WSW)   3958  ptly cldy   dust
     21:00                 18   263    (W)   4548 mstly cldy   dust
     22:00                  9   264    (W)   5902   cloudy     dust
     23:00                 21   268    (W)   6566   cloudy     dust
     00:00                 15   265    (W)   6043   cloudy     dust
     01:00                 15   264    (W)   5458   cloudy     dust
     02:00                 10   265    (W)   5121 mstly cldy   dust
     03:00                 13   277    (W)   5832  ptly cldy   dust
     04:00                 14   318   (NW)   5521 mstly clr    dust
     05:00                 12   334  (NNW)   3336 mstly clr    dust
     06:00                 10   322   (NW)   3121    clear     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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: a>