Subject: 3.5m Night Log 20240425
From: cgray@apo.nmsu.edu
Date: Fri, 26 Apr 2024 11:15:36 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, April 25, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY01  E.Hintz           S.Call
CU03  A.Kowalski        J.Libby-Roberts
NM06  A.Peck            A.Peck, A.Smith
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY01  TripleSpec     --:--   --:--
CU03  ARCTIC         22:45   01:32
NM06  ECHELLE        01:35   04:44
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY01/R      19:50  21:40   1.8  0.0   0    0    0    0    0    0
CU03/R      21:40  01:30    0   1.1   0    0   0.0  2.7   0    0
NM06/R      01:30  06:12    0   1.5   0    0   0.0  3.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
We had high winds and even higher dust to start off  the night. Particle counts were up near 30K and winds were gusting near 50 mph. Things started calming down at sunset and the dust came down far enough for us to open near 11pm. Seeing was surprisingly good for all the wind and dust!! However, as the wind calmed down, the pollen started going up. Once the humidity kicked in I closed without hope of reopening.
Bill walked me through changing the DIS gratings this afternoon. I added documentation onto the new wiki (the new one!) as well as instructions for DIS contamination check. We took contamination exposures for Russet in the R300 grating and then reinstalled the R830.
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
--------------------------------------------------------------------------
 22:01 arctic    32(  768) -27  57   5.0  7.0  9.2  6.8  5.8   sdss-z  1.50
 00:39 ecamera    536(    6) -45  66   3.8  3.7  4.5  3.7  3.6   ND2  0.96
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    54    14     33   258  (WSW)  45519    clear     dust
     17:00    54    12     42   259    (W)  25062    clear     dust
     18:00    52    11     37   263    (W)  25497    clear     dust
     19:00    49    11     33   262    (W)  12880    clear     dust
     20:00    46     9     20   264    (W)   6043    clear     none
     21:00    44     9     22   262    (W)  11413    clear     none
     22:00    42    14     25   281    (W)   6013    clear     none
     23:00    41    15     20   266    (W)   2636    clear     none
     00:00    40    18     20   279    (W)   2360    clear     none
     01:00    39    19     22   292  (WNW)   2371    clear     none
     02:00    38    18     16   314   (NW)   2018    clear     none
     03:00    37    19     17   314   (NW)           clear     none
     04:00    36    21     15   317   (NW)           clear     none
     05:00    35    23     15   318   (NW)           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: 3.1.5