Subject: 3.5m Night Log 20240907
From: cgray@apo.nmsu.edu
Date: Sun,  8 Sep 2024 12:31:18 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, September 07, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS02  D.Gies            P.Wysocki
JH07  K.Schlaufman      K.Schlaufman
UW06  C.Orion           C.Orion, M.Moe
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS02  ECHELLE        21:07   01:10
JH07  ECHELLE        01:10   03:13
UW06  ARCTIC         03:16   05:08
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS02/R      19:28  01:10    0   1.7   0    0   3.5  0.5   0    0
JH07/R      01:10  03:15    0    0    0    0   2.1  0.0   0    0
UW06/R      03:15  06:34    0    0    0    0   3.3  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out with low clouds and radar coming from the east. I delayed opening until the clouds had cleared and, while we had high humidity and eastern winds, we had surprisingly good seeing!!
There was a fiducial error in az during test slews at the beginning of the night. I was moving from az 145 to 45 and it threw the error on the first magnisensor but then I didn't notice any other errors for the rest of the night.
                    ------- 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
--------------------------------------------------------------------------
 21:26 ecamera    380(  245)  -8  72  10.9 12.1 12.2 11.7 11.1   ND1  1.20
 01:15 ecamera    339(  116) -134  36   9.4  9.7 10.4  9.7  9.4   ND1  0.90
 03:22 arctic   319( 1214) -69  35  10.9 10.1 10.6 10.2 10.5   BG40  1.55
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    58    46      4   284  (WNW)   1613 mstly cldy   none
     17:00    60    47      4   221   (SW)   1441 mstly cldy   none
     18:00    57    47      1   225   (SW)   1359 mstly cldy   none
     19:00    54    44     11    90    (E)   1107 mstly cldy   none
     20:00    53    42     10    92    (E)   1040  ptly cldy   none
     21:00    52    43     12    91    (E)           clear     none
     22:00    50    44     13    83    (E)           clear     none
     23:00    51    44     15    77  (ENE)           clear     none
     00:00    51    44     15    61  (ENE)           clear    humid
     01:00    50    45     13    77  (ENE)           clear    humid
     02:00    50    44     19    49   (NE)           clear     none
     03:00    52    41     12    54   (NE)   1037    clear     none
     04:00    52    39     12    54   (NE)   1017    clear     none
     05:00    50    38     14    76  (ENE)   1011    clear     none
     06:00    50    36     13    80    (E)   1072    clear     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: 3.1.5