Subject: 3.5m Night Log 20250227
From: mcroom@apo.nmsu.edu
Date: Fri, 28 Feb 2025 13:06:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, February 27, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM01  C.Gray            C.Gray
NM04  M.Croom           M.Croom
OU03  G.Garcia          G.Garcia
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM01  Echelle        18:04   20:27
NM04  KOSMOS         20:30   00:10
OU03  KOSMOS         00:10   05:54
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM01/R      18:08  20:15    0    0    0    0   2.1  0.0   0    0
NM04/O      20:15  00:10    0    0    0    0   3.9  0.0   0    0
OU03/R      00:10  06:23    0    0    0    0   6.2  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: M.Croom
The seeing was a bit worse than usual but the skies were photometric from dusk until 03:00. Only relatively thin clouds whisked by between then and dawn, and we remained open all night.
KOSMOS performed well. No errors as the disperser wheel was moved a couple of times between blue and empty to enable focusing.
No telescope issues.
                    ------- 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
--------------------------------------------------------------------------
 18:23 ecamera    425(  -43) 274  26   1.2  4.3  4.2  4.5  2.6   ND2  1.75
 19:01 ecamera    386( -189) 269  27   0.5  1.8  2.9  2.4  1.3   ND2  2.22
 19:59 ecamera    301( -353) 269  39   0.1  0.6  1.4  0.7  0.2   ND2  1.98
 21:18 khigh   250(  573) 110  53   1.4  0.4  1.2  0.3  0.8   -  1.68
 00:27 kosmos   275(  587)  54  76   1.2  0.4  1.3  0.7  1.1   -  1.60
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    45    17      7   267    (W)   2861 mstly clr    none
     17:00    40    16      9   300  (WNW)   2852    clear     none
     18:00    36    18      7    52   (NE)    922    clear     none
     19:00    33    18     13    65  (ENE)    940    clear     none
     20:00    32    17      9    87    (E)   1004    clear     none
     21:00    34    17      3   150  (SSE)   1601    clear     none
     22:00    35    17      9   119  (ESE)   1802    clear     none
     23:00    36    17      9   168  (SSE)   1780    clear     none
     00:00    35    17      9   166  (SSE)   1912    clear     none
     01:00    34    17      8   123  (ESE)   1914    clear     none
     02:00    33    17      4   126   (SE)   2015    clear     none
     03:00    35    17      2   206  (SSW)   2035 mstly clr    none
     04:00    35    17      1   207  (SSW)   2005 mstly clr    none
     05:00    37    17      3   223   (SW)   1963 mstly clr    none
     06:00    37    17      8   226   (SW)   1815 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