Subject: 3.5m Night Log 20220428
From: ajt@apo.nmsu.edu
Date: Fri, 29 Apr 2022 12:38:16 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, April 28, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS01  M.Crenshaw        J.Falcone,G.Polack,M.Shea,Z.Chapman
JH01  Z.Rustamkulov     Z.Rustamkulov
JH09  D.Nataf           D.Nataf
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS01  KOSMOS         20:43   22:07
JH01  KOSMOS         22:08   03:01
JH09  ECHELLE        03:05   05:44
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS01/R      19:52  22:00    0    0   0.9   0   1.2  0.0   0    0
JH01/R      22:00  03:00    0    0    0    0   5.0  0.0   0    0
JH09/R      03:00  06:09    0    0    0    0   2.7  0.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Power went out at 18:17, and we didn't open up while on generator power. Back on utility at 20:30. By this time 1-micron dust counts > 3000, so I started with fans in reverse mode, but didn't leave them that way for long. Switched back to reverse mode at 00:50, dust stayed elevated for the rest of the night.
We did not check focus at the start of JH01 due to time constraints.
Nice and clear all night!
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
GS01  KOSMOS      T/H      19:52  20:43   Closed due to loss of power/running
                                          on generator.
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:56 khigh   401( 1205) 161  79  12.0 13.0 13.6 12.5 12.5   --  1.38
 03:14 ecamera    375( -106) 105  45   7.5  7.6  8.5  7.5  7.5   ND1  1.43
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    59    10     12   219   (SW)   2395    clear     none
     17:00    58    11     27   265    (W)   2624    clear     none
     18:00    58    11     20   271    (W)   2486    clear     none
     19:00    57     9     32   259    (W)   2791    clear     none
     20:00    54     9     22   257  (WSW)   2699    clear     none
     21:00    53     8     21   262    (W)   2840    clear     none
     22:00    52     6     16   266    (W)   2612    clear     none
     23:00    52     6     15   260    (W)   2542    clear     none
     00:00    51     6     17   259    (W)   2317    clear     none
     01:00    50    10     19   252  (WSW)   3162    clear     none
     02:00    48    10     22   261    (W)   3555    clear     none
     03:00    46    11     15   262    (W)   3477    clear     none
     04:00    46     9     15   276    (W)   3662    clear     none
     05:00    44     8     21   270    (W)   3985    clear     none
     06:00    43    10     15   279    (W)   4015    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: 2.6.0