Subject: 3.5m Night Log 20210327
From: dembicky@apo.nmsu.edu
Date: Sun, 28 Mar 2021 12:50:06 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, March 27, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS03  D.Gies            K.Shepard
WY02  M.Brotherton      J.McLane
NM05  A.Hedlund         A.Hedlund
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS03  ECHELLE        20:50   01:05
WY02  TSPEC          01:10   03:10
NM05  ECHELLE        03:10   06:29
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS03/R      19:29  01:10    0   1.4   0    0   0.0  4.3   0    0
WY02/R      01:10  03:10    0    0    0    0   0.0  2.0   0    0
NM05/R      03:10  06:48    0    0    0    0   0.0  3.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
We had radar returns to our North as well as visible virga so I held off opening until conditions improved.  We finally opened at 20:50.
Apparently somebody had turned the roof heaters on.  I turned them off.
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
--------------------------------------------------------------------------
 20:59 ecamera    317( -789) 225  51   0.1  0.8  1.2  0.9  0.3   ND1  1.38
 23:11 ecamera    442( -702) 267  35  -0.5 -0.3  0.2 -0.4 -0.4   clear  1.90
 01:17 tcamera    445(  554) 244  59  -0.9 -0.9 -0.5 -1.1 -1.1   Ks  0.98
 03:18 ecamera    430( -789) 123  42  -2.0 -1.8 -1.5 -2.1 -1.9   ND1  2.08
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    29    22     11     3    (N)   1435   cloudy   lt snow
     17:00    28    24      5   351    (N)          cloudy   lt snow
     18:00    31    23      8    51   (NE)        mstly cldy   none
     19:00    32    21      5   337  (NNW)   1356  ptly cldy   none
     20:00    29    24     27    41   (NE)         ptly cldy   none
     21:00    32    17     24    48   (NE)   1267 mstly clr    none
     22:00    32    15     16    58  (ENE)   1306    clear     none
     23:00    31    17     19    35   (NE)   1315    clear     none
     00:00    31    15     19    76  (ENE)   1237    clear     none
     01:00    30    18     16    74  (ENE)   1217    clear     none
     02:00    29    19     24    68  (ENE)   1323    clear     none
     03:00    28    22     21    77  (ENE)   1254    clear     none
     04:00    28    24     17    82    (E)           clear     none
     05:00    29    23     19    76  (ENE)           clear     none
     06:00    30    21     19    75  (ENE)   1258    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: 2.6.0