Subject: 3.5m Night Log 20220819
From: decolib@apo.nmsu.edu
Date: Sat, 20 Aug 2022 09:57:00 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, August 19, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW07  B.Morris          S.Hawley
NM05  J.Burchett        J.Burchett
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW07  ECHELLE        --:--   --:--
NM05  KOSMOS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW07/R      19:52  01:10   4.6  0.7   0    0   0.0  0.0   0    0
NM05/R      01:10  06:22   0.0  5.2   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
As expected, the weather kept us closed the entire night. However, we were still able to make use of some time doing internal calibrations with NM05's MOS masks.
Joe reported that the Littrow zeroth-order line was visible in the internal arc lamp spectra with the MOS masks, as the positions of the slits on the image plane were superimposed on the arcs (matching the appearance of images taken when the disperser was not in the light path).
Additionally, this extra (undispersed?) light at the positions of the slits seemed to leak in the spatial direction beyond the actual physical extent of the slits (in the +X or -X direction on the image).
There were no other problems tonight aside from the bad weather. I called it a night around 04:00, with high humidity, pouring rain, and no hope of opening before sunrise.
                    ------- 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    61    51      2   207  (SSW)    522   cloudy     none
     17:00    60    50     15   147  (SSE)    809   cloudy     none
     18:00    58    52      7   101    (E)    995   cloudy     none
     19:00    56    51     16   126   (SE)          cloudy    humid
     20:00    55    51     12    96    (E)          cloudy    humid
     21:00    55    51     12   109  (ESE)          cloudy    humid
     22:00    55    51     16    96    (E)          cloudy    humid
     23:00    54    52     18    82    (E)          cloudy    humid
     00:00    53    52     18   107  (ESE)          cloudy    humid
     01:00    52    51     13    87    (E)          cloudy    humid
     02:00    53    52     12   109  (ESE)          cloudy     rain
     03:00    53    52     22   142   (SE)          cloudy     rain
     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: 2.6.0