Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, January 19, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
UW07  G.Khullar         G.Khullar             
NM03  T.McQuaid         T.McQuaid             

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW07  KOSMOS         17:32   00:07   
NM03  ECHELLE        00:10   06:13

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW07/R      17:32  00:10    0    0    0    0   5.7  0.9   0    0
NM03/R      00:10  06:56    0    0    0    0   6.8  0.0   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky

A CME hit the earth today and sparked the Aurora tonight on our cloud cam!

Other than clouds for part of the night, we never closed, we had no problems tonight.

                    ------- 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
--------------------------------------------------------------------------
 18:17 khigh   375(  695)  42  49   1.0  4.5  3.7  5.2  1.4   --  2.30
 19:22 khigh   375(  548) -97  45  -0.2  1.3  2.1  1.4  0.0   --  1.09
 00:14 ecamera    523( -349) -136  52   1.7  0.5  1.4  0.6  1.4   ND1  0.85

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    39    11      6   202  (SSW)   1156 mstly clr    none 
     17:00    37    10      5   257  (WSW)   1351 mstly clr    none 
     18:00    34     9      3   254  (WSW)   1947 mstly clr    none 
     19:00    33     9      6   192  (SSW)   1690 mstly clr    none 
     20:00    30    11      6   226   (SW)   1641 mstly clr    none 
     21:00    33    10      1   167  (SSE)   1240  ptly cldy   none 
     22:00    35     9      7   251  (WSW)   1029 mstly cldy   none 
     23:00    35    11      7   280    (W)   1340 mstly cldy   none 
     00:00    35    10      8   309   (NW)   1534 mstly clr    none 
     01:00    34    10      2   269    (W)   1243 mstly cldy   none 
     02:00    35     9     10   308   (NW)   1528 mstly cldy   none 
     03:00    35     9      2   304   (NW)   1698 mstly clr    none 
     04:00    34     9      3   283  (WNW)   1647    clear     none 
     05:00    35    10      6   258  (WSW)   1982    clear     none 
     06:00    35     9      9   246  (WSW)   1933    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: 3.1.8