Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, July 05, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
UW07  S.Hawley          L.Hebb                
WY03  M.Brotherton      M.Brotherton&Class    

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW07  ECHELLE        23:20   00:30   
WY03  KOSMOS         04:04   05:20
WY03  EYEPIECE       05:20   05:45


   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW07/R      20:24  01:10   2.9  0.7   0    0   0.4  0.8   0    0
WY03/O      01:10  05:52    0   2.9   0    0   0.0  1.8   0    0

note: scheduled times listed include instrument change time

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

Completely overcast skies with radar and a little bit of rain kept us closed most of A-half. When it finally cleared up we tried but only got about an hour on sky before the thick clouds (and nearby radar) came back. We were finally able to open back up around 04:00 and the class got to do a few KOSMOS exposures and then speedrun some planet observations with the eyepiece during twilight! 

While WY03 was running a sequence of bias exposures, one of them failed with the error "Torrent Error: ERROR: command >(null)< not found." I restarted the kosmos-icc and reset the heater servo deadband to 3. 


                    ------- 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
--------------------------------------------------------------------------
 23:27 ecamera    300(  136) 187  38  15.0 15.3 16.5 15.1 14.8   Clear  1.30
 04:16 kosmos   515( 1284) 280  53  13.3 14.1 15.1 13.9 12.8   --  1.18


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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    62    33     11    83    (E)    937   cloudy     none 
     17:00    62    32     12    72  (ENE)    846   cloudy     none 
     18:00    65    32      1   218   (SW)    904   cloudy     none 
     19:00    62    32      2   225   (SW)   1454   cloudy     none 
     20:00    61    32      5   184    (S)    934   cloudy   lt rain
     21:00    57    32      6   255  (WSW)   1673  ptly cldy   none 
     22:00    59    31      3   249  (WSW)   2119  ptly cldy   none 
     23:00    58    31      1   309   (NW)   1416 mstly clr    none 
     00:00    61    31      2    20  (NNE)   1283 mstly cldy   none 
     01:00    62    31      5    98    (E)    873 mstly cldy   none 
     02:00    63    32      7   111  (ESE)    852  ptly cldy   none 
     03:00    60    31      5   186    (S)   1564 mstly clr    none 
     04:00    55    29      8    86    (E)   1263 mstly clr    none 
     05:00    59    31      1   273    (W)   1183 mstly clr    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
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