Subject: 3.5m Night Log 20250222
From: ajt@apo.nmsu.edu
Date: Sun, 23 Feb 2025 13:56:48 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, February 22, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM02  C.Gray            C.Gray
UW06  C.Chandler        M.Frissell
NA01  J.Young           J.Young
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM02  ECHELLE        18:04   20:49
UW06  ARCTIC         20:52   23:59
NA01  NICFPS         00:14   06:20
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM02/R      18:04  20:45    0    0    0    0   2.7  0.0   0    0
UW06/R      20:45  00:10    0    0    0    0   3.4  0.0   0    0
NA01/O      00:10  06:29    0    0    0    0   3.4  2.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Restricted ARCTIC rotation to +/-120 per Bill's instructions. ARCTIC pressures were nominal all night.
Photometric sky with decent seeing until about 03:00, after which we had thin clouds.
No telescope or instrument problems.
                    ------- 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
--------------------------------------------------------------------------
 18:24 ecamera    266( -261) 270  43   1.2  3.1  3.0  2.6  2.0   ND3  1.10
 20:19 ecamera    333( -324) 251  38   0.7  0.6  1.5  0.6  0.6   ND2  1.27
 20:58 arctic   334(  745)  57  64   0.5  0.3  1.2  0.5  0.4   CUVR  1.26
 00:25 NICFPS     308( 1110) 316  69   0.8  0.1  0.9  0.3  0.5   MK-Ks  1.12
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    38    11      6   278    (W)   1642    clear     none
     17:00    36    12      3   347  (NNW)   1450    clear     none
     18:00    35    11      6     1    (N)   1528    clear     none
     19:00    35    11      6   353    (N)   1343    clear     none
     20:00    34    11      6   339  (NNW)   1529    clear     none
     21:00    33    11     12   304   (NW)   1611    clear     none
     22:00    33    10     17   299  (WNW)   1388    clear     none
     23:00    34    11     13   297  (WNW)   1570    clear     none
     00:00    34    11     18   319   (NW)   1407    clear     none
     01:00    32    10      8   358    (N)   1445    clear     none
     02:00    34    11     13    14  (NNE)   1317    clear     none
     03:00    33    11     10   353    (N)    890 mstly clr    none
     04:00    34    10     22    20  (NNE)    926  ptly cldy   none
     05:00    37    -6      9     9    (N)    423  ptly cldy   none
     06:00    33     0     23    19  (NNE)    381 mstly clr    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: 3.1.8