Subject: 3.5m Night Log 20250908
From: cgray@apo.nmsu.edu
Date: Tue,  9 Sep 2025 12:36:19 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, September 08, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY03  S.Call            S.Call, M.Christensen
AP01  S.Merkowitz       R.McMillan, T.Sutherland
NM07  W.Roberson        W.Roberson, A.Peck
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY03  TripleSpec     19:27   01:09
AP01  APOLLO         01:12   02:03
NM07  ECHELLE        02:08   06:25
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY03/R      19:27  01:10    0    0    0    0   0.4  5.3   0    0
AP01/R      01:10  02:10    0    0    0    0   0.0  1.0   0    0
NM07/R      02:10  06:35    0    0    0    0   0.0  4.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
- dataq needed restart at checkout
- alcor camera needed USB restart at checkout
Another beautiful night!! There we a few clouds during B half but they didn't cause any issues. We had one motion error at 06:13 at 40 deg while slewing down from a higher altitude. An axis init solved the issue and it didn't happen again.
                    ------- 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
--------------------------------------------------------------------------
 19:42 tcamera    508( 1780)  89  78  16.8 19.8 18.8 19.4 17.4   MKs  1.07
 01:14 APOLLO     300( 1900)  35  69  15.6 15.4 15.9 15.2 15.4   530  1.00
 02:30 ecamera    394(  223) -31  56  15.3 15.5 15.9 15.4 15.9   ND1  1.30
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    67    39      0    38   (NE)    588    clear     none
     17:00    67    37     12   345  (NNW)    626    clear     none
     18:00    67    37      8   294  (WNW)    626    clear     none
     19:00    65    41      8   313   (NW)    581    clear     none
     20:00    63    42      2   348  (NNW)    616    clear     none
     21:00    62    39      3   270    (W)    564    clear     none
     22:00    62    38      5   247  (WSW)    593    clear     none
     23:00    63    38      5   189    (S)    584    clear     none
     00:00    62    38      6   191    (S)    624    clear     none
     01:00    61    38      5   186    (S)    656 mstly clr    none
     02:00    60    40     10   219   (SW)    695 mstly clr    none
     03:00    60    41      8   181    (S)    777 mstly clr    none
     04:00    60    40     10   183    (S)   1333    clear     none
     05:00    59    43      6   201  (SSW)    939 mstly clr    none
     06:00    60    44      9   193  (SSW)    869 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
Current TUI version: 3.1.8