Subject: 3.5m Night Log 20230306
From: dembicky@apo.nmsu.edu
Date: Tue,  7 Mar 2023 11:26:05 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, March 06, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV01  J.Davidson        J.Davidson, J.WIlson, S.Majeewski,
UW01  S.Hawley          S.Jones, G.Stefansson
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV01  DSSI           19:25   00:58
UW01  ARCTIC         00:10   00:55
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV01/O      18:13  00:10    0   1.2   0    0   0.0  4.8   0    0
UW01/R      00:10  06:15    0   5.3   0    0   0.0  0.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Clouds and verga delayed us from opening at the start of the night.
Clouds and radar returns closed us just before 01:00.  We never re-opened and gave up at 04:15.
                    ------- 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
--------------------------------------------------------------------------
 20:03 dssi   418( 1095) -38  39  10.0  6.6  6.9  6.3  6.2   692  1.20
 00:16 arctic   413(  703)  59  64  10.0  5.1  5.8  5.2  5.4   Semrock  0.89
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 11   244  (WSW)    594  ptly cldy   none
     17:00                 14   248  (WSW)    551 mstly cldy   none
     18:00                 16   249  (WSW)    592 mstly cldy   none
     19:00                 12   258  (WSW)    490  ptly cldy   none
     20:00                 14   265    (W)    599  ptly cldy   none
     21:00                 17   259    (W)    687  ptly cldy   none
     22:00                 15   271    (W)    628  ptly cldy   none
     23:00                 15   267    (W)    509  ptly cldy   none
     00:00                 15   277    (W)    453 mstly cldy   none
     01:00                 11   267    (W)    440   cloudy     none
     02:00                 15   270    (W)    470   cloudy     none
     03:00                 17   250  (WSW)    477   cloudy     none
     04:00                 16   256  (WSW)    596   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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