Subject: 3.5m Night Log 20250331
From: ajt@apo.nmsu.edu
Date: Tue,  1 Apr 2025 12:52:36 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, March 31, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP02  S.Merkowitz       R.McMillan,T.Sutherland,B.Ketzeback
UW07  C.Chandler        M.Frissell
SU01  J.Hughes          J.Hughes,K.Devine
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP02  APOLLO         19:30   19:36
UW07  ARCTIC         21:03   22:03
SU01  KOSMOS         02:09   06:18
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP02/R      19:31  20:31    0   0.9   0    0   0.0  0.1   0    0
UW07/R      20:31  01:10   2.6  1.0   0    0   0.0  1.0   0    0
SU01/R      01:10  06:42   1.0   0    0    0   4.5  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
At checkout, gcam needed the nubs restarted. I also had to restart the Alcor computer to unfreeze the optical all sky camera.
Dust counts hit the limit just after we got on sky with APOLLO so we did not get to shoot the moon. We got back on sky with UW07 for about an hour until the clouds got so bad we couldn't see anything through them.
At 02:00 it was clear enough to see stars! The clouds complicated things but we were able to get some photons through them.
                    ------- 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
--------------------------------------------------------------------------
 19:31 APOLLO     450( 2000)  74  43   8.3  9.7  9.5  9.1  8.4   530  1.40
 21:11 arctic   367( 1169)   7  68   8.4  8.6  9.2  8.4  8.3   CUVR  1.12
 02:21 kimage   200(  897)   4  77   7.5  7.5  8.0  7.6  7.3   --  1.26
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    52    11     14   211  (SSW)   1880 mstly clr    none
     17:00    53    12     13   234   (SW)   2218 mstly clr    none
     18:00    52    11     19   259    (W)   2829 mstly clr    none
     19:00    48     9     24   243  (WSW)   2744 mstly clr    none
     20:00    47    10     21   260    (W)   4560  ptly cldy   dust
     21:00    47    13     20   256  (WSW)   3679 mstly cldy   dust
     22:00    47    13     16   256  (WSW)   3379   cloudy     dust
     23:00    48    15     18   235   (SW)   2671   cloudy     none
     00:00    48    14     17   234   (SW)   2189   cloudy     none
     01:00    48    14     13   264    (W)   2107   cloudy     none
     02:00    46    14     12   263    (W)   2053  ptly cldy   none
     03:00    45    14     17   249  (WSW)   1800  ptly cldy   none
     04:00    44    16     21   228   (SW)   1517  ptly cldy   none
     05:00    43    19     21   240  (WSW)   1535  ptly cldy   none
     06:00    42    19     19   224   (SW)   1437  ptly cldy   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: 3.1.8