Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, June 22, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
UW08  S.Hawley          L.Hebb                

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW08  ECHELLE        20:25   05:35   

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW08/R      20:24  01:10    0    0    0    0   0.0  4.8   0    0
UW08/R      01:10  05:47    0    0    0    0   4.2  0.4   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend

ARCTIC LL saturated at checkout, recovered by 21:06.

Motion error on first test slew at 19:37.  Altitude 74 slewing down from park at 78.

TUI disconnected on me at 06:04 on obsA. I was able to reconnect immediately. 

We had a beautiful clear night! 

                    ------- 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
--------------------------------------------------------------------------
 20:42 ecamera    565(  797) 141  47  21.3 23.9 23.2 23.7 21.8   ND2  0.89


               ------------- WEATHER LOG ----------------

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    77    29      7   266    (W)    707    clear     none 
     17:00    77    30     11   257  (WSW)    711    clear     none 
     18:00    78    30      8   266    (W)    672    clear     none 
     19:00    79    29      7   255  (WSW)    709    clear     none 
     20:00    73    26      3   225   (SW)    764    clear     none 
     21:00    70    25      5   184    (S)    915    clear     none 
     22:00    68    36      9   150  (SSE)   1217    clear     none 
     23:00    68    35     11   150  (SSE)   1370    clear     none 
     00:00    68    36     15   149  (SSE)   1446    clear     none 
     01:00    69    34     11   181    (S)   1613    clear     none 
     02:00    69    35      9   159  (SSE)   1463    clear     none 
     03:00    68    35     15   200  (SSW)   1448    clear     none 
     04:00    67    34     11   213  (SSW)   1383    clear     none 
     05:00    67    34     11   185    (S)   1403    clear     none 
     06:00    65    35     14   208  (SSW)   1412    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: