Subject: 3.5m Night Log 20250626
From: mcroom@apo.nmsu.edu
Date: Fri, 27 Jun 2025 10:19:32 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, June 26, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW03  B.Benda           B.Benda
JH01  Z.Rustamkulov     Z.Rustamkulov
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW03  ECHELLE        --:--   --:--
JH01  KOSMOS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW03/R      20:24  01:10   3.2  1.6   0    0   0.0  0.0   0    0
JH01/R      01:10  05:49   4.6   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: M.Croom
Never opened due to rain, clouds, and humidity. Gave up at observer's minimum useful time threshold 04:15.
LN2 dewar #3 had to be shared during afternoon fills for Echelle and NICFPS.
Had to restart the dataq and drive telemetry stripcharts.
Dcam failed at checkout. It was de-selected and ignored in repeat checkout.
DIS red pressure email warning (p>4.5e-05) was not substantiated by the instrument panel (6.9-7.0e-07).
"DISred retried 3 time to start HV and failed" email warning repeated several times. No action taken on my part.
                    ------- 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    62    44      5   156  (SSE)    395   cloudy     none
     17:00    61    49      4   261    (W)    538 mstly cldy   none
     18:00    61    42      1   178    (S)    390 mstly cldy   none
     19:00    58    51      5   349    (N)          cloudy     none
     20:00    58    49      2   342  (NNW)          cloudy     none
     21:00    57    47      2    97    (E)          cloudy     none
     22:00    57    45      6   113  (ESE)    762   cloudy     none
     23:00    54    48      8   107  (ESE)          cloudy    humid
     00:00    53    52     14   125   (SE)          cloudy    humid
     01:00    53    51     15   131   (SE)          cloudy    humid
     02:00    53    49     17   135   (SE)          cloudy    humid
     03:00    52    49      7   127   (SE)          cloudy    humid
     04:00    53    48     10   131   (SE)          cloudy    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: 3.1.8