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

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
CU03  A.Kowalski        J.Libby-Roberts,P.Premnath
JH03  N.Oliveros-Gomez  N.Oliveros-Gomez      
AP01  S.Merkowitz       R.McMillan,T.Sutherland

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU03  ARCTIC         19:35   01:04   
JH03  NICFPS         01:16   05:36
AP01  APOLLO         05:36   06:36

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU03/R      19:35  01:10    0    0    0    0   3.6  2.0   0    0
JH03/R      01:10  05:36    0    0    0    0   0.0  4.4   0    0
AP01/R      05:36  06:36    0    0    0    0   0.0  1.0   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: T.McQuaid

At 04:10 nicfps exposured starting failing with 
"object tim... failed: exposeTxt="cannot start a new nicfps exposure while another is active"
restarting ICS fixed it

otherwise good and uneventful

                    ------- 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
--------------------------------------------------------------------------
 20:06 arctic   899( 1294)   9  63   2.5  4.2  4.9  3.2  2.6   sdss_r  2.37
 20:06 NA2gdr 36328(36328)   9  63   2.5  4.1  4.9  3.1  2.5   R  2.53
 01:38 NICFPS     657( 1182) 164  62   3.9  0.5  1.7  0.9  2.4   MK-J  0.99
 05:45 APOLLO     475( 1434) -18  29   3.1  1.1  2.5  1.6  2.6   --  1.20


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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    50    24     10   322   (NW)   1772    clear     none 
     17:00    48    23     10    78  (ENE)    754    clear     none 
     18:00    44    21     14    72  (ENE)    758    clear     none 
     19:00    40    19     22    74  (ENE)    744    clear     none 
     20:00    37    19     16    76  (ENE)    848    clear     none 
     21:00    35    19     15    78  (ENE)   1112    clear     none 
     22:00    34    17     19    70  (ENE)   1288    clear     none 
     23:00    33    17     17    81    (E)   1342    clear     none 
     00:00    33    17     12    85    (E)   1319    clear     none 
     01:00    34    19      7    91    (E)   1186    clear     none 
     02:00    38    25      2   186    (S)   1090    clear     none 
     03:00    38    22      2   182    (S)   1103    clear     none 
     04:00    37    23      1   157  (SSE)   1067    clear     none 
     05:00    38    21      3   191    (S)   1052    clear     none 
     06:00    38    20      1   154  (SSE)   1105    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