Subject: 3.5m Night Log 20230430
From: ajt@apo.nmsu.edu
Date: Mon,  1 May 2023 12:36:54 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, April 30, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY03  M.Moe             A.Daly,M.Frank,M.Moe
UW09  B.Morris          L.Hebb
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY03  ECHELLE        19:54   01:07
UW09  ECHELLE        01:07   05:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY03/R      19:53  01:10    0    0    0    0   0.0  5.3   0    0
UW09/R      01:10  06:08    0    0    0    0   1.8  3.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
This afternoon the APO website was down (thank you Shane for fixing it) and the all sky camera was frozen so I restarted that.
We had thin clouds for most of the night but they didn't slow us down too much. Plus pretty good seeing! Temperatures started around 15C and dropped to 11, then back up to 13 and down to 11 again by morning. Humidity was between 12 and 15% the whole night.
No telescope or instrument problems.
                    ------- 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
--------------------------------------------------------------------------
 19:05 ecamera    411(  107)  39  38  10.0 15.5 15.5 14.8 14.3   ND3  0.87
 20:19 ecamera    384(    9) -55  64  10.0 14.4 14.8 14.0 14.4   Clear  0.78
 21:41 ecamera    414(   12) -131  63  10.0 13.8 14.4 13.6 13.8   Clear  0.76
 00:11 ecamera    416(   -5) 181  41  10.0 13.1 13.7 12.8 13.0   Clear  1.12
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                  6   249  (WSW)   1205 mstly cldy   none
     17:00                 16   258  (WSW)   1089 mstly cldy   none
     18:00                  8   264    (W)   1266 mstly cldy   none
     19:00                 13   246  (WSW)   1167  ptly cldy   none
     20:00                 12   220   (SW)   1380  ptly cldy   none
     21:00                  7   194  (SSW)   1317  ptly cldy   none
     22:00                 14   228   (SW)   1241  ptly cldy   none
     23:00                 14   241  (WSW)   1413  ptly cldy   none
     00:00                 14   242  (WSW)   1419  ptly cldy   none
     01:00                 11   240  (WSW)   1464  ptly cldy   none
     02:00                 10   258  (WSW)   1491  ptly cldy   none
     03:00                  9   260    (W)   1517  ptly cldy   none
     04:00                  7   261    (W)   1608  ptly cldy   none
     05:00                  7   262    (W)   1634  ptly cldy   none
     06:00                  6   263    (W)   1685  ptly 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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Current TUI version: 3.1.1