Subject: 3.5m Night Log 20230509
From: cgray@apo.nmsu.edu
Date: Wed, 10 May 2023 12:25:34 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, May 09, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV02  J.Davidson        J.Davidson
CU02  A.Kowalski        J.Libby-Roberts
CU02  A.Kowalski        J.Libby-Roberts
NM01  A.Hedlund         P.Gaulme
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV02  DSSI           20:00   22:56
CU02  ARCTIC         23:06   03:19
NM01  ECHELLE        03:25   05:23
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV02/R      20:00  23:10    0    0    0    0   3.2  0.0   0    0
CU02/R      23:10  03:35    0    0    0    0   1.3  3.1   0    0
NM01/R      03:35  06:00    0    0    0    0   0.0  2.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started off with some light clouds and cleared up after a few hours. Seeing was great all night! DSSI was able to get lots of good data and are going to be testing their IR camera soon. The arctic diffuser struggled a little to rotate, but after a couple of attempts it started spinning. CU02 tried out some dome flats with the new fence and, aside from a little increase in light in one of the corners, it worked great!
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
--------------------------------------------------------------------------
 20:19 dssi   345( 1419)  -6  71  10.0 15.4 15.6 15.0 14.2   692  0.70
 23:11 arctic   386( 1025)  92  51  10.0 12.4 13.2 12.2 12.6   sdss-i  1.17
 03:31 ecamera    416( -132) 119  62  10.0 10.6 11.3 10.6 10.6   clear  0.89
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 25   236   (SW)   1429 mstly clr    none
     17:00                 14   209  (SSW)   1490 mstly clr    none
     18:00                 19   231   (SW)   1242 mstly clr    none
     19:00                 16   215   (SW)   1195 mstly clr    none
     20:00                 12   249  (WSW)   1234 mstly clr    none
     21:00                  9   246  (WSW)   1120 mstly clr    none
     22:00                  9   261    (W)   1239    clear     none
     23:00                 13   265    (W)   1386    clear     none
     00:00                 11   262    (W)   1566    clear     none
     01:00                  9   233   (SW)   1659    clear     none
     02:00                  9   224   (SW)   1457    clear     none
     03:00                  9   257  (WSW)   1179    clear     none
     04:00                  8   267    (W)   1338    clear     none
     05:00                  4   254  (WSW)   1321    clear     none
     06:00                  6   261    (W)   1320    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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