Subject: 3.5m Night Log 20250306
From: tsutherland@apo.nmsu.edu
Date: Fri,  7 Mar 2025 13:01:38 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, March 06, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP01  S.Merkowitz       R.McMillan
NM03  A.Peck            E.Nielsen
CU01  K.Reardon         K.Reardon,Class
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         --:--   --:--
NM03  ECHELLE        23:26   00:03
CU01  KOSMOS         00:10   03:45
CU01  KOSMOS         04:54   05:52
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      18:13  20:30    0   2.3   0    0   0.0   0    0    0
NM03/R      20:30  00:10    0   2.9   0    0   0.0  0.8   0    0
CU01/R      00:10  06:15   1.2   0    0    0   2.9  2.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland,C.Gray
At the start of the night we had dust, dust, and against all odds, even more dust!
Restarted Dataq.
Finally opened around 11:30pm when the dust and wind dropped. Closed up around 03:45 for thick clouds. Reopened at 4:54am.
No problems tonight (other than the weather of course).
                    ------- 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
--------------------------------------------------------------------------
 23:32 ecamera    200( -445) 165  69   0.5  1.2  4.9  1.8  1.1   ND1  1.41
 00:51 klow   400(  718) 195  50   0.0  0.2  2.6  0.2  0.0   --  1.60
 05:08 kosmos   325(  576) 180  55  -2.3 -1.1 -0.6 -1.7 -2.3   --  1.21
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    43    11     41   257  (WSW) 109724 mstly cldy   dust
     17:00    42    14     41   268    (W) 167096 mstly cldy   dust
     18:00    39    21     37   256  (WSW)  70866 mstly cldy   dust
     19:00    37    22     15   256  (WSW)  17905 mstly cldy   dust
     20:00    36    24     25   264    (W)  23951  ptly cldy   dust
     21:00    35    25     24   264    (W)  10441  ptly cldy   dust
     22:00    34    24     18   267    (W)   7254 mstly clr    dust
     23:00    33    22     29   257  (WSW)   3769 mstly clr    none
     00:00    32    22     28   263    (W)   1843 mstly clr    none
     01:00    32    23     27   267    (W)         ptly cldy   none
     02:00    31    22     26   267    (W)          cloudy     none
     03:00    30    23     20   263    (W)          cloudy    humid
     04:00    29    23     18   266    (W)         ptly cldy  humid
     05:00    28    22     17   262    (W)        mstly cldy  humid
     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.
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