Subject: 3.5m Night Log 20230324
From: cgray@apo.nmsu.edu
Date: Sat, 25 Mar 2023 11:54:02 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, March 24, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP01  S.Merkowitz       R.McMillan
OU02  E.Baron           J.DerKacy
UW08  C.Chandler        C.Chandler, C.Trujillo
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         --:--   --:--
OU02  KOSMOS         23:22   01:04
UW08  ARCTIC         01:16   04:05
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      19:26  20:26   0.0  1.0   0    0    0    0    0    0
OU02/R      20:26  01:10   0.7  2.4   0    0   1.6   0    0    0
UW08/R      01:10  06:52    0    0    0    0   5.7  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out cloudy, windy, and with snow flurries. Things improved a little before midnight and we were able to open, but the seeing was terrible. It slowly improved and the clouds mostly cleared, but then the humidity + dust limit was reached around 4 am. The humidity didn't improve and UW08 gave up. I forgot to record the Arctic focus at 01:33am, but it was 1.38".
No problems tonight.
                    ------- 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
--------------------------------------------------------------------------
  23:28 kosmos   593(  494) 173  80  10.0 -1.9 -2.4 -2.9 -3.9   --  1.72
 00:32 kosmos   793(  577)  79  71  10.0 -4.5 -3.8 -4.7 -4.9   --  1.87
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 21   265    (W)    716   cloudy     none
     17:00                 15   269    (W)   1213   cloudy     none
     18:00                 23   286  (WNW)    638   cloudy     none
     19:00                 13   260    (W)    727   cloudy     none
     20:00                 34   269    (W)    555   cloudy     none
     21:00                 23   267    (W)    644   cloudy     none
     22:00                 23   293  (WNW)    872   cloudy     none
     23:00                 17   272    (W)   1776 mstly cldy   none
     00:00                 19   266    (W)   2156    clear     none
     01:00                 15   283  (WNW)   2554    clear     none
     02:00                 18   279    (W)   2109  ptly cldy   none
     03:00                 14   277    (W)   2255 mstly clr    none
     04:00                  9   302  (WNW)   2262 mstly clr   humid
     05:00                  6   352    (N)           clear    humid
     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: 2.6.0