Subject: 3.5m Night Log 20200321
From: cgray@apo.nmsu.edu
Date: Sun, 22 Mar 2020 12:49:46 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, March 21, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU01  Z.Berta-Thompson  J.Roberts
NM03  A.Hedlund         P.Gaulme
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU01  DIS            19:24   02:32
NM03  ECHELLE        02:35   06:20
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU01/R      19:24  02:40    0    0    0    0   7.3  0.0   0    0
NM03/R      02:40  06:55    0    0    0    0   3.8  0.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
nicfps needed init at the start of the night.
The night started out mostly clear but then clouds started rolling in around 8pm and wouldn't go away. We had high, thin clouds for the rest of the night and poor seeing.
At the end of the night I thought I would go out and see the conjunction (or what was left of it). Well, I ended up seeing Starlink for the first time. OMG. IT'S THE ABSOLUTE WORST!! It just doesn't end! And it's so bright! But I can't technically list it as a problem so I'm just going to grumble about it.
                    ------- 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
--------------------------------------------------------------------------
 18:55 arctic   809( 1058) 153  28   4.5  5.8  6.7  4.9  4.5   sdss-i  1.77
 01:48 ecamera    686( -317) 135  71   3.7  3.2  4.8  3.1  3.1   --  2.05
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    46    27     21   229   (SW)    443 mstly clr    none
     17:00    46    28     26   240  (WSW)    558 mstly clr    none
     18:00    45    24     25   214   (SW)    624 mstly clr    none
     19:00    42    25     23   225   (SW)    692 mstly clr    none
     20:00    40    23     17   236   (SW)    679  ptly cldy   none
     21:00    41    20     16   248  (WSW)    480  ptly cldy   none
     22:00    40    20     17   242  (WSW)    506 mstly clr    none
     23:00    40    21     16   254  (WSW)    504 mstly cldy   none
     00:00    41    17     11   262    (W)    404 mstly cldy   none
     01:00    40    15     10   267    (W)    426 mstly cldy   none
     02:00    39    16      7   270    (W)    400  ptly cldy   none
     03:00    39    17      8   265    (W)    404  ptly cldy   none
     04:00    38    12     16   268    (W)    374  ptly cldy   none
     05:00    37     9     17   269    (W)    342  ptly cldy   none
     06:00    36    11     13   257  (WSW)    372  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.
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