Subject: 3.5m Night Log 20240218
From: cgray@apo.nmsu.edu
Date: Mon, 19 Feb 2024 13:29:57 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, February 18, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP01  S.Merkowitz       R.McMillan
FG01  D.Buzasi          D.Buzasi
UW02  P.Yoachim         C.Gray
UW06  B.Morris          K.Shepard
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         18:00   18:58
FG01  ECHELLE        19:02   00:10
UW02  KOSMOS         00:14   03:10
UW06  ECHELLE        03:02   06:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      18:00  19:00    0    0    0    0   0.0  1.0   0    0
FG01/R      19:00  00:10    0    0    0    0   0.0  5.2   0    0
UW02/R      00:10  03:10    0    0    0    0   0.0  3.0   0    0
UW06/R      03:10  06:34    0    0    0    0   2.7  0.7   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
A nice clear night! And with good seeing! The only issue we had was UW02 had an emergency and couldn't make their observations. However, they supplied us with an observing plan and I was able to observe for them.
The echelle is continuing to run through about 100 lbs of LN2... And the IOL is still dropping and is now at 16.
                    ------- 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
--------------------------------------------------------------------------
 18:00 APOLLO     500( 1749)  85  69   2.3  3.7  3.2  3.2  2.4   530  1.20
 20:10 ecamera    470( -159)  89  24   1.5  0.9  1.8  1.1  1.4   Clear  2.86
 00:31 kosmos   320(  718) -138  57   2.3  1.0  1.9  1.8  2.2   --  1.26
 03:17 ecamera    410( -234) 186  38   1.8  0.8  1.8  1.1  1.8   ND1  1.15
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    41    21     10   263    (W)    271  ptly cldy   none
     17:00    35    21      5   268    (W)    515 mstly clr    none
     18:00    36    18     12   289  (WNW)    406    clear     none
     19:00    34    21     15   296  (WNW)    791    clear     none
     20:00    35    21      9   307   (NW)    762    clear     none
     21:00    35    20     17   279    (W)    742    clear     none
     22:00    36    19     16   288  (WNW)    582    clear     none
     23:00    35    18     11   306   (NW)    573    clear     none
     00:00    35    20     12   329  (NNW)    507    clear     none
     01:00    35    19     13   325   (NW)    426    clear     none
     02:00    35    18      3   327  (NNW)    353    clear     none
     03:00    35    17      7   314   (NW)    314    clear     none
     04:00    36    15     15   321   (NW)    267    clear     none
     05:00    35    11     13     9    (N)    243    clear     none
     06:00    35     9     15   358    (N)    232    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  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 3.1.3