Subject: 3.5m Night Log 20210320
From: mcmillan@apo.nmsu.edu
Date: Sun, 21 Mar 2021 12:47:11 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, March 20, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW09  B.Morris          L.Hebb,S.Hawley
WY01  M.Brotherton      J.McLane
JH03  K.Schlaufman      K.Schlaufman
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW09  ECHELLE        19:30   01:05
WY01  TSPEC          01:09   02:45
JH03  ECHELLE        02:50   06:15
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW09/R      19:24  01:10    0    0    0    0   0.0  5.8   0    0
WY01/R      01:10  02:50    0    0    0    0   0.7  1.0   0    0
JH03/R      02:50  06:57    0    0    0    0   4.1  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
The night started out mostly clear with moderate seeing, but we had some high clouds move in towards the end of the night.  The telescopes and instruments worked well, but the IR cloudcam was having a lot of trouble with flatfielding or some other calibration step, which made the images hard to interpret.
                    ------- 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
--------------------------------------------------------------------------
 18:47 ecamera    583( -112) -59  48   8.8  9.5  9.8  9.2  8.9   ND1  1.16
 00:28 tcamera    396(  880) 148  64   7.6  7.1  7.8  7.0  7.2   Ks  1.22
 01:59 ecamera    446( -382) -159  61   7.7  6.9  7.5  6.9  7.1   Clear  1.09
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    53    11     28   216   (SW)   2976 mstly clr    none
     17:00    57    11     24   202  (SSW)   2598    clear     none
     18:00    53     9     25   227   (SW)   2771    clear     none
     19:00    49     9     21   234   (SW)   2667    clear     none
     20:00    48     8     21   227   (SW)   2162    clear     none
     21:00    47     4     20   216   (SW)   1493    clear     none
     22:00    47     5     16   237  (WSW)   1509    clear     none
     23:00    47     5     15   235   (SW)   1793    clear     none
     00:00    46     5     17   216   (SW)   1754    clear     none
     01:00    45     5     18   220   (SW)   2241 mstly clr    none
     02:00    45     6     10   228   (SW)   2558 mstly clr    none
     03:00    46    11     10   262    (W)   1415 mstly clr    none
     04:00    45    15     12   253  (WSW)   1079  ptly cldy   none
     05:00    44    16     13   263    (W)    839  ptly cldy   none
     06:00    45    17     21   263    (W)    472  ptly cldy   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: 2.6.0