Subject: 3.5m Night Log 20240323
From: cgray@apo.nmsu.edu
Date: Sun, 24 Mar 2024 12:32:00 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, March 23, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY03  D.Stephens        D.Stephens
UW06  B.Morris          S.Hawley, L.Hebb
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY03  TripleSpec     --:--   --:--
UW06  ECHELLE        02:04   06:13
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY03/R      19:26  01:10   0.0  5.7   0    0    0    0    0    0
UW06/R      01:10  06:53    0   0.9   0    0   0.0  4.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started completely overcast with virga everywhere. The clouds were so thick we couldn't see the moon. Eventually the band moved and we were able to get some clearer skies for B half. The winds were reaching near the limit but we were able to point east and avoid any issues. The seeing was not very good and the temperatures really started dropping near dawn as the snow storm came closer.
The echelle has been doing great! The loss in LN2 between fills seems (so far) to be back to normal.
No problems tonight. We they are saying winds can reach 80 mph tomorrow so I won't be surprised if there are some power outages.
                    ------- 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
--------------------------------------------------------------------------
 02:13 ecamera    288( -179) 193  43   4.0  4.6  5.1  4.6  4.0   Clear  1.65
 05:58 ecamera    532( -160) 261  71   0.5  0.3  1.2  0.4  0.4   Clear  1.64
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    48    20     19   213  (SSW)   1248   cloudy     none
     17:00    47    18     21   233   (SW)   1120   cloudy     none
     18:00    46    14     21   212  (SSW)    888   cloudy     none
     19:00    46    14     16   210  (SSW)   1390   cloudy     none
     20:00    46    13     24   221   (SW)   2222   cloudy     none
     21:00    44    13     20   215   (SW)   5140   cloudy     none
     22:00    43    13     18   235   (SW)   1383   cloudy     none
     23:00    42    14     23   245  (WSW)   1110   cloudy     none
     00:00    41    15     21   248  (WSW)   1152   cloudy     none
     01:00    39    16     17   234   (SW)    985   cloudy     none
     02:00    39    15     20   259    (W)    845 mstly cldy   none
     03:00    37    15     23   263    (W)    943 mstly clr    none
     04:00    36    15     15   242  (WSW)    886 mstly clr    none
     05:00    34    18     18   266    (W)    997  ptly cldy   none
     06:00    33    19     21   213  (SSW)   1201 mstly 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: 3.1.3