Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, May 01, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
EN01  B.Ketzeback       A.Townsend,R.McMillan,H.Abbot
AP01  S.Merkowitz       R.McMillan,H.Abbot    

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  ECHELLE        --:--   --:--   
AP01  APOLLO         --:--   --:--
EN01  ARCTIC         --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/W      19:54  01:10   0.2  5.1   0    0   0.0  0.0   0    0
AP01/W      01:10  02:10    0   1.0   0    0   0.0  0.0   0    0
EN01/W      02:10  06:06    0   3.9   0    0   0.0  0.0   0    0

note: scheduled times listed include instrument change time

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

Retarted gcam nub at checkout. 
Rain, hail, fog, humidity, and clouds all night kept us closed. 

Engineering tasks done: 
- Set inst behavior testing
- Tested non-sidereal tracking timestamp format
- APOLLO training and troubleshooting 
- Obs-spec safety procedure checks


                    ------- 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
--------------------------------------------------------------------------

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    38    31     20    57  (ENE)          cloudy     fog  
     17:00    36    32     16    78  (ENE)          cloudy     fog  
     18:00    35    32     12    80    (E)          cloudy     rain 
     19:00    35    32      7    66  (ENE)          cloudy     rain 
     20:00    33    32     14    72  (ENE)          cloudy     rain 
     21:00    33    32      8    73  (ENE)          cloudy     fog  
     22:00    36    32      1   103  (ESE)          cloudy     fog  
     23:00    33    32      2    91    (E)          cloudy     fog  
     00:00    34    32      7    22  (NNE)          cloudy    humid 
     01:00    35    32      7    58  (ENE)          cloudy    humid 
     02:00    34    32      1   268    (W)          cloudy   lt rain
     03:00    35    32      0   284  (WNW)          cloudy    humid 
     04:00    34    32      1   178    (S)          cloudy    humid 
     05:00    35    31      3    37   (NE)          cloudy     rain 



     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