Subject: 3.5m Night Log 20220706
From: ajt@apo.nmsu.edu
Date: Thu,  7 Jul 2022 12:04:22 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, July 06, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM07  A.Smith           A.Smith,H.Gallamore,E.Nielsen
UW08  J.Davenport       J.Davenport
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM07  ECHELLE        22:38   03:30
NM07  ECHELLE        04:33   05:10
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM07/R      20:24  01:10    0   2.2   0    0   0.1  2.4   0    0
NM07/R/D    01:10  05:53   1.0   0    0    0   3.7   0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Rain in the afternoon and evening, radar and clouds for a while after sunset. We opened at 22:30 and observed through the clouds which were pretty bad all night--NM07 did a great job of finding bright stars in gaps! We closed for about an hour at 03:30 due to nearby radar.
The original B-half observer for UW08 was sick and unable to observe tonight (get better soon!) and NM07 was able to use the time instead.
The secondary was fine until 00:20 when it reset, but we'd gotten to focus at the start of observing and the bright stars seemed to suffer more from clouds than any defocus problems. I did rehome the secondary while we were closed, but it reset again before we reopened and so we continued observing with it in that state.
We stopped early in twilight because the clouds were getting worse.
                    ------- 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
--------------------------------------------------------------------------
 22:43 ecamera    446(  414)   1  61  16.6 17.4 17.8 17.4 17.6   ND2  0.82
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    54    48     21    72  (ENE)   1445 mstly cldy   rain
     17:00    63    52      2    90    (E)    540 mstly cldy   none
     18:00    61    48      3    11    (N)    641 mstly cldy lt rain
     19:00    65    46      5   354    (N)    549 mstly cldy   none
     20:00    63    45      1   298  (WNW)    607 mstly cldy   none
     21:00    63    45      6     4    (N)    577 mstly cldy   none
     22:00    63    43     10    56   (NE)    542 mstly cldy   none
     23:00    62    44      2   270    (W)    549 mstly cldy   none
     00:00    62    45      1   262    (W)    636 mstly cldy   none
     01:00    61    45      2   309   (NW)    604 mstly cldy   none
     02:00    61    45      6   212  (SSW)    609 mstly cldy   none
     03:00    60    45      2   198  (SSW)    579 mstly cldy   none
     04:00    59    43      5   188    (S)    379 mstly cldy   none
     05:00    60    41      4   190    (S)    385 mstly cldy   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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