Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, March 30, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
AV01  A.Verbiscer       A.Verbiscer           
AP02  S.Merkowitz       R.McMillan,T.Sutherland,N.Colmenares,E.Hoffman
UW03  A.Tzanidakis      A.Tzanidakis          

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AV01  ARCTIC         22:35   02:04   
AP02  APOLLO         02:09   03:35
UW03  KOSMOS         03:55   06:27

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AV01/R      19:31  01:10    0   3.0   0    0   0.0  2.7   0    0
AV01/R      01:10  02:10    0    0    0    0   0.0  1.0   0    0
AP02/W      02:10  03:44    0    0    0    0   0.0  1.6   0    0
UW03/R      03:44  06:44    0    0    0    0   0.7  2.3   0    0

note: scheduled times listed include instrument change time

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

We stayed closed at the start of the night due to the combination of clouds and nearby radar returns. We opened once the radar cleared up and had clouds in and out all night but we managed to observe through them. 

ObsA struggled with connecting to local websites until I unplugged the 10.75 cable. Torrie had some trouble connecting to TUI from offsite while connected to the APO VPN. 

The focus script also kept timing out all night as well, so here are the seeing measurements: 
22:41  ARCTIC SDSS_r  1.46
02:11  APOLLO  530    1.1 
04:05  KOSMOS  --     0.82


                    ------- 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
--------------------------------------------------------------------------
(see Activity Log)

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    62    18      9   261    (W)   1666  ptly cldy   none 
     17:00    64    20      5   233   (SW)   2012  ptly cldy   none 
     18:00    58    20     13   276    (W)   1934 mstly cldy   none 
     19:00    56    21      9   270    (W)   2319   cloudy     none 
     20:00    55    21      8   259    (W)   2226   cloudy     none 
     21:00    54    21      9   257  (WSW)   2288  ptly cldy   none 
     22:00    52    26      7    41   (NE)   2300  ptly cldy   none 
     23:00    52    27     16    30  (NNE)   1904  ptly cldy   none 
     00:00    51    28     12     1    (N)   1679 mstly clr    none 
     01:00    51    27     10   359    (N)   1666    clear     none 
     02:00    50    27      1   356    (N)   1695    clear     none 
     03:00    50    28      8   306   (NW)   1587    clear     none 
     04:00    48    28     11   296  (WNW)   1607  ptly cldy   none 
     05:00    47    29      8   281    (W)   1671  ptly cldy   none 
     06:00    47    29      9   314   (NW)   1812  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