Subject: 3.5m Night Log 20230307
From: ajt@apo.nmsu.edu
Date: Wed,  8 Mar 2023 13:17:56 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, March 07, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS03  T.Henry           J.Davidson,S.Majewski,J.Wilson,E.Fagan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS03  DSSI           18:45   06:05
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS03/O      18:14  00:10   0.1  0.4   0    0   0.0  5.4   0    0
GS03/O      00:10  06:14    0    0    0    0   0.0  6.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
We stayed closed for about half an hour at sunset waiting for the clouds and radar to clear up. We had some clouds at the start and end of the night that we were able to observe through, and a lot of good clear sky in the middle.
No telescope or instrument problems.
Temperatures wavered around between 6 and 3C, humidity was about 50% all night.
                    ------- 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
--------------------------------------------------------------------------
 19:10 dssi   383(  967) -33  43  10.0  4.7  5.3  4.5  4.0   692  1.20
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                  8   304   (NW)    980 mstly cldy   none
     17:00                 14   262    (W)    678 mstly cldy   none
     18:00                 12   249  (WSW)    492 mstly cldy   none
     19:00                 18   267    (W)    499  ptly cldy   none
     20:00                 16   266    (W)    828 mstly clr    none
     21:00                 11   264    (W)    512 mstly clr    none
     22:00                  9   265    (W)    460    clear     none
     23:00                 14   264    (W)    439    clear     none
     00:00                 16   270    (W)    423    clear     none
     01:00                 15   265    (W)    396    clear     none
     02:00                  8   262    (W)    494 mstly clr    none
     03:00                 11   247  (WSW)    522 mstly clr    none
     04:00                 11   236   (SW)    513  ptly cldy   none
     05:00                 11   228   (SW)    517 mstly clr    none
     06:00                 11   199  (SSW)    519    clear     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.
              ----------  TELESCOPE SOFTWARE  ----------
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Current TUI version: 2.6.0