Subject: 3.5m Night Log 20240510
From: cgray@apo.nmsu.edu
Date: Sat, 11 May 2024 10:11:00 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, May 10, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY01  E.Hintz           S.Call
UW02  P.Yoachim         P.Yoachim
CU04  A.Kowalski        A.Kowalski
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY01  TripleSpec     --:--   --:--
UW02  KOSMOS         --:--   --:--
CU04  ARCTIC         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY01/R      20:01  22:40   0.0  2.6   0    0   0    0    0    0
UW02/R      22:40  01:10   1.9  0.6   0    0   0    0    0    0
CU04/R      01:10  05:58   4.8  0.0   0    0   0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
AURORA!!! INTENSE AURORA!!! ALL NIGHT!!!
You could see it with your naked eyes and watch it dance!! Which is what Amanda and I did most of the night because we were not able to open.
Humidity and dust were creeping up leading to evening and we hit the limit about 30 min before sunset. After that, it was lots of humidity and the rain sensor went off. Around 4am the humidity started coming down enough to measure the high dust. There was no hope of opening with the east winds.
The Dataq mac mini froze and needed to be restart during check out. Other than that, there were no 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
--------------------------------------------------------------------------
              ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    55    28      6   153  (SSE)   2443    clear     none
     17:00    54    33     17   144   (SE)   2529    clear     none
     18:00    53    32      7   112  (ESE)   3006    clear     none
     19:00    52    33     13    86    (E)   3311    clear     none
     20:00    49    39     18    82    (E)   4280    clear     dust
     21:00    46    41     16    88    (E)   4598    clear     dust
     22:00    44    41     15    81    (E)           clear     dust
     23:00    43    41     18    90    (E)        mstly clr   humid
     00:00    42    41     23    74  (ENE)        mstly clr   humid
     01:00    41    40     19    73  (ENE)        mstly clr   humid
     02:00    41    40     14    98    (E)           clear    humid
     03:00    42    38     18   119  (ESE)           clear    humid
     04:00    45    40     21   129   (SE)   4560    clear    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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 3.1.5