Subject: 3.5m Night Log 20230428
From: cgray@apo.nmsu.edu
Date: Sat, 29 Apr 2023 12:05:16 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, April 28, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH02  M.Guolo           Q.Wang
UW06  C.Suberlak        C.Suberlak
UW08  C.Chandler	C.Chandler, W.Oldroyd
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH02  KOSMOS         19:51   01:02
UW06  KOSMOS         01:25   03:25
UW08  ARCTIC         03:34   05:45
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH02/R      19:51  01:10    0    0    0    0   0.0  5.3   0    0
UW06/R      01:10  03:30    0    0    0    0   0.1  2.2   0    0
UW08/R      03:30  06:10    0    0    0    0   2.7  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
We had a mostly clear night tonight with just some thin clouds here and there. Sadly, the seeing was not very good. The wind was coming from the north and we had high gusts and dust in the afternoon. Since UW03 did have high priority targets tonight, they donated their time to UW06 and UW08.
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
--------------------------------------------------------------------------
 05:59 klow   492(  824) 104  85  10.0  7.2  7.8  7.3  7.3   --  1.22
 20:17 kosmos   544(  811) -16  52  10.0  5.5  6.2  5.2  4.8   --  1.64
 01:35 kosmos   542(  727)  94  79  10.0  4.1  4.8  4.3  4.6   --  1.53
 05:13 arctic   412(  670)  37  22  10.0  3.7  4.3  3.7  3.8   --  1.53
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 24   354    (N)   1941    clear     dust
     17:00                 24     7    (N)   1464    clear     dust
     18:00                  8   314   (NW)    699    clear     none
     19:00                 13   360    (N)    660    clear     none
     20:00                 13   323   (NW)    660 mstly clr    none
     21:00                  9    22  (NNE)    836 mstly clr    none
     22:00                 13    10    (N)    981 mstly clr    none
     23:00                 14    22  (NNE)   1011    clear     none
     00:00                 12   356    (N)   1378    clear     none
     01:00                  5    17  (NNE)   1409    clear     none
     02:00                 10   360    (N)   1506    clear     none
     03:00                 19    19  (NNE)   1713    clear     none
     04:00                 13    33  (NNE)   2354    clear     none
     05:00                 14    19  (NNE)   1749    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.
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