Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, June 15, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
WY02  C.Kobulnicky      N.Patten,R.Reynolds   
OU03  G.Garcia          G.Garcia              

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY02  ECHELLE        20:53   22:14   
WY02  KOSMOS         00:19   01:02
OU03  NICFPS         01:18   01:36
OU03  NICFPS         04:01   04:18


   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY02/R      20:22  01:10  2.1   0.5   0    0   1.6  0.6   0    0
OU03/R      01:10  05:46  3.9    0    0    0   0.7  0.0   0    0

note: scheduled times listed include instrument change time

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

ARCTIC showed only minor saturation on the edge of LL as of 17:30 which improved quickly; Tencl 15.2 at 18:30. 

Although we got no rain, there was lots of nearby radar and then some really thick clouds during B-half. We were able to be open for some of the night, but it was a struggle. We gave up for the night at 04:20 due to clouds. 

                    ------- 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
--------------------------------------------------------------------------
 20:59 ecamera    453(  435)  76  70  15.1 18.6 18.6 19.1 16.0   ND2   1.49
 00:29 kosmos     475( 1258)  79  55  13.8 14.4 15.3 14.1 13.8   --    1.19
 01:26 NICFPS     531( 1704) -74  50  15.0 14.2 14.8 13.8 14.4   MK-J  0.76

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    65    33     10   270    (W)   1125  ptly cldy   none 
     17:00    67    33      3   298  (WNW)   1041  ptly cldy   none 
     18:00    69    33     12   244  (WSW)   1128  ptly cldy   none 
     19:00    62    32     10   257  (WSW)   1131 mstly cldy   none 
     20:00    61    32     12   218   (SW)   1204 mstly clr    none 
     21:00    59    31     12   180    (S)   1367 mstly clr    none 
     22:00    57    31      8   180    (S)   1358 mstly clr    none 
     23:00    56    30      2   198  (SSW)         ptly cldy   none 
     00:00    56    30      1   134   (SE)   1352  ptly cldy   none 
     01:00    58    30      6   197  (SSW)   1303 mstly cldy   none 
     02:00    58    30      2   194  (SSW)   1288 mstly cldy   none 
     03:00    60    30      9   242  (WSW)   1091 mstly cldy   none 
     04:00    58    30      6   231   (SW)   1245 mstly 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