Subject: 3.5m Night Log 20250327
From: cgray@apo.nmsu.edu
Date: Fri, 28 Mar 2025 12:12:29 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, March 27, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS01  D.Michael         J.Tutterow,J.Falcone
UW01  P.Yoachim         Z.Liu, Z.Xu
NM06  K.Sanderson       K.Sanderson
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS01  KOSMOS         20:15   00:26
UW01  KOSMOS         --:--   --:--
NM06  KOSMOS         03:43   06:09
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS01/R      19:29  01:10   1.4   0    0    0   4.2  0.0   0    0
UW01/R      01:10  03:40   2.5   0    0    0   0.0  0.0   0    0
NM06/R      03:40  06:48    0    0    0    0   2.7  0.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The evening started with light rain and clouds but it cleared out quickly and we were able to open about an hour after sunset. But then the dust started climbing and just stayed over the limit. That is until NM06 logged in and it plummeted!! Probably because they are about to be a new Ph.D :) The seeing was good and we were able to observe for all of NM06's time.
No problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 20:39 klow   250(  992) 104  49   9.1  9.2  9.7  9.0  8.8   --  1.31
 03:55 kosmos   300(  917)  71  65   6.5  6.8  7.7  6.7  6.3   --  0.95
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    56    27      8   258  (WSW)   2385 mstly cldy lt rain
     17:00    59    31     14   218   (SW)   2402 mstly cldy lt rain
     18:00    50    29     17   282  (WNW)   5735  ptly cldy   none
     19:00    48    32      2   244  (WSW)   5310 mstly clr    none
     20:00    47    31     13    57  (ENE)   3339 mstly clr    none
     21:00    48    27      1   128   (SE)   3401    clear     none
     22:00    46    26      6   238  (WSW)   3520    clear     none
     23:00    47    29      6   244  (WSW)   3920    clear     none
     00:00    46    30      5   246  (WSW)   4124    clear     dust
     01:00    46    30      7   251  (WSW)   5138    clear     dust
     02:00    45    30      9   224   (SW)   4715    clear     dust
     03:00    46    30     10   262    (W)   5678    clear     dust
     04:00    44    31     11   237  (WSW)   2204    clear     none
     05:00    44    30      9   245  (WSW)   1966    clear     none
     06:00    45    29     11   263    (W)   2815    clear     dust
     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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